951 orange rcd

Twin Switch Socket Outlet, 250V 10A, 2 Gang, Safety Shut

Catalogue Number: 951
951 orange rcd
Colour: White
Colour: Per UOM Std.
  • White 1 PCE
Added to cart


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Range of product
  • PDL
  • Powerguard
    • Product brand
      Number of poles
      [In] rated current
      10 A
      [Ue] rated operational voltage
      230 V 50/60 Hz conforming to EN 60309-2
      Voltage colour
      body: white
      Connections - terminals
      screw terminal
      6 h
      EU RoHS Directive
      Circularity Profile

      Frequently Asked Questions

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      Is there a latching version of the PDL 951

       No - all portable RCDs are non latching for safety reason

      Can you buy a 20m 954 camper set

      You can purchase a 955RW, BALS211 + 56CR310 + flex

      Which 751 infrascan , can use 2 units to control the same load??


      Can the 901 plug be used with 1.5mm cable?

      Yes, the 901 plug can be wired with 1.5mm ordinary duty flex.

      Some of the key features are:
      • Terminals accommodate conductors from 0.75 sq mm to 1.5 sq mm
      • Recommended for use with PVC insulated ordinary duty Three core circular flexible cords
      • AS/NZS3112, AS/NZS3100 standard
      For further information please visit https://www.clipsal.com/Trade/Products/ProductDetail?catno=901

      Does the PDL 954 have an rcd + plug and socket

       The PDL 954 comes with an RCD +15A socket + 16A plug
      This product is being phased out Jan 2018 the product can be had up PDL955RM a with a plug and cord

      Can a 751 be used with 25W LED?

      Yes, it can but you will need to put a 31CAP in parallel with the load.


      What is the meaning of fault code 151 in XXMIT block in Unity Pro.

      The fault code 151 means that MsgOut is smaller than 12 Byte when 'Modbus Master Messaging' function is selected.

      To prevent this fault do the following:
      1. Increase the array size of variable defined for MsgOut parameter.
      2. Use array of same size as defined in step#1 for the variable of parameter MsgIN.

      Do you sell replacement GU10 lamps for the 981 and 982 series downlights?

      No, unfortunately the 981 and 982 series downlights have been discontinued and we no longer sell the GU10 lamps.

      Other manufacturers still produce GU10 lamps but we cannot recomend a particular manufacturer. It would be trial and error process to see what lamp is suitable for your dimmer.

      For further information please visit 

      What is the Operating Humidity Range for the S31LCDA Load Correction Device ?

       The Operating Humidity Range is 5 - 95% relative humidity, non-condensing.

      What does error 151 generated by the Xxmit block mean?

      Error 151 indicates the variables associated with MsgOut / MsgIn parameters are not long enough. When the Xxmit block is being used as a Modbus messaging function the MsgIn and MsgOut parameters must be configured as located variable of type Word Array 9.

      Legacy KB System (APS) Data: RESL172843 V1.0, Originally authored by on , Last Edited by on
      Related ranges: Concept

      What does a 991 error code on a Circuit Monitor 2000 (CM2000 / CM2) display mean?

      CM2000 Series meter's front display shows an alarm code "991" and user may not know what that means and how to fix it.

      Product Line
      CM2000, CM2050, CM2150, CM2250, CM2350, CM2450

      Alarm code, Error Message, Power meter retrofit and replacement
      If the front display of a Circuit Monitor 2000 displays a 991 message, this indicates an internal memory failure.

      It is possible that re-loading the latest firmware for the meter could correct the issue. If a firmware refresh does not correct the error, the unit will need to be replaced.

      The latest firmware for a CM2000 Series meter can be found in FA221408.

      See FA237920 for information on how to upgrade the CM2000 firmware and for a link to the firmware download utility, DLF-3000. 

      Are there any metal finish cover plates available for the PDL 651?

      Yes, the PDL 682 coverplate is the same one used for the PDL 651. The metal cover plates are available in Polished Brass (PB), Brushed Bronze (BBZ) and Stainless Steel (SS).
      Code example (PDL 651 coverplate in Polished Brass): PDL 682MPB

      What is the ATV660 Drive Efficiency? 

      What is the Efficiency of ATV630 Drives?

      Product Line:
      ATV630, Altivar 630



      95% (or greater) at full load typical.

      Are the Altivar 650 and Altivar 950 Process Drives available?

      How do I order an Altivar 650 (ATV650) or Altivar 950 (ATV950) drive?

      Product Line:
      Altivar Process Drive (ATV650, ATV950)

      All serial numbers for Altivar 650 and 950 Process Drive 


      Altivar 650
      This drive is now available to order.  

      In the past ATV630........ EU was the part number used in place of the ATV650.....EU drives.    The only difference is the ATV630....... EU has a Black color disconnect and the ATV650...... EU has a Red color disconnect. 

      Altivar 950
      These drives are not available for ordering yet.
      To order a Nema 12 drive:
       - Order an Altivar 960 Enclosed drive using Product Selector with Nema 12 option. (For End Users/Customers please your contact local distributor for assistance)

      How much power is dissipated by the high end Quantum PLCs?

      This can be calculated as Bus Current * Bus Voltage.

      140 CPU 651 50 -> 2160mA * 5V = 10.8W
      140 CPU 651 60 -> 2760mA * 5V = 13.8W

      140 CPU 651 60S-> 2760mA * 5V = 13.8W
      140 CPU 652 60 -> 2760mA * 5V = 13.8W
      140 CPU 658 60 -> 2760mA * 5V = 13.8W

      140 CPU 670 60 -> 2500mA * 5V = 12.5W
      140 CPU 671 60 -> 2500mA * 5V = 12.5W
      140 CPU 671 60S-> 2500mA * 5V = 12.5W

      140 CPU 672 60 -> 2500mA * 5V = 12.5W
      140 CPU 672 61 -> 2500mA * 5V = 12.5W

      140 CPU 678 61 -> 2500mA * 5V = 12.5W

      To calculate BTU you can take the wattage and multiply it by 3.4144.

      What are the pinouts for the M12 connector on my ConneXium IP67 Ethernet switch?

      The connectors shown below are used in the IP67 ConneXium TCS ESU 051 F0 switch.

      Note that if the other end is RJ45, the pinouts on the RJ45 end are 1 (TD+), 2 (TD-), 3 (RD+) and 6 (RD-).

      Legacy KB System (APS) Data: RESL173796 V1.0, Originally authored by on , Last Edited by on
      Related ranges: ConneXium - Ethernet

      Is there a replacement for the 955RW30?

      There is no direct replacement but there are 2 alternatives to the 955RW30.
      If you want to keep the rewire-able aspect then the 955RW10-WE is an options or...
      If you want to keep the 30ma tripping aspect then the 955 is the way to go.

      For more information, please refer to the link:


      Why are my lights flickering on a 751 sensor?

      Generally it is because 1 of 2 reasons, Incompatible load type or your not exceeding your minimum load.
      Please see table below for specifications:
      Catalogue Number 751 751R
      Minimum Loads 40W 0W
      Compatible Load types Incandescent Incandescent
        240V Halogen 240V Halogen
        Iron Core Transformers* Iron Core Transformers
          Electronic Transformers
      Incompatible Loads Fluorescent N/A
        Electronic Transformers N/A
        Small Motor Loads 5A Max N/A
        Dischharge Lamps N/A

      For further information please visit Trade - Clipsal by Schneider Electric

      ATV42 - efficiency - power loss rendement - puissance dissipee - perte - pertes

      Goals and Symptoms

      ATV42 - efficiency - power loss
      rendement - puissance dissipée - perte - pertes

      Causes and Fixes

      For all sizes the efficiency is 95% at nominal load.

      Tous calibres confondus, le rendement de l'ATV42 est 95% à charge nominale.

      Does the ATV312 have safe torque off?

      To be a true Safe Torque Off (STO) the drive must enable the implementation of applications up to safety Category 3 according to standard EN 954-1.  The ATV312 does not meet this standard but can be programmed to allow a freewheel stop.  

      If STO is required, see the ATV32, ATV61 or ATV71 drives.  

      CTA-ID : 2061351

      The ACSC100 manual lists an In-Rush current of 56amps for 200ms. How does this not trip the 20amp breaker?

      The ACSC100 manual lists an In-Rush current of 56amps for 200ms.  How does this not trip the 20amp breaker?
      Product line:
      InRow Cooling
      The reason that the circuit breaker does not trip is expressed in the time/current curve that are unique properties of circuit breakers or fuses. For example a typical Square ""D"" ""NQ"" breaker rated at 20 amps might trip after 300 seconds of a 20 amp load, but will pass considerably more than 56 amps at 200ms of time.

      What are the red safety covers for the TeSys D LC1D contactors?

      What is the  red safety covers for D line contactor.

      Product Line:
      D-Line IEC contactors 

      IEC Contactors  sold and used in the United States

      Requirement for safety covers in specific situations

      LAD9ET1S for 9A to 65A contactors.
      LAD9ET3S for 80A to 95A contactors.
      LAD9ET4S for 110A to 150A contactors.
      There are also auxillary contacts available for front mount with a ref cover, model LADN22S, 2NO + 2NC

      What can cause the ATV680 enclosed drive to trip on a AFE contact feedback or CRF3 fault?

      What can cause the ATV680 enclosed drive to trip on a AFE contact feedback or CRF3 fault?

      Product Line:
      Altivar ATV680 drive


      AFE units are missing the feedback from the line contactors not pulling in. 

      Drive tripping on AFE feedback fault or CRF3 fault
      Check 230vac  on the X100 terminals all ok
      Check 230vac on the X110 two terminals all good
      Check 230vac on the X100 terminal pin 15 and 19 all good 230vac to 0V
      Start drive and see that we are not getting any voltage from the AFE unit back to X100 pins 16 and 5 so the K51 relay is not pulling in to allow mains voltage to the AFE.
      Turned off power and reseat all of the X100 and X110 terminals 
      Set up the motor control to Go and Stop function
      Tested Again
      Now we are getting both the K51 and K52 relays to pull in and the drive is running
      Stopped the drive and set the motor control Run Stop back to 60 seconds and
      Tested again the drive is running
      So the issue appears to have been a connection issue on the X100 or X110 terminal blocks.

      Netbotz and FTP Return Codes


      Netbotz and FTP Return Codes

      Product Line:



      NetBotz ftp codes


      When configuring the FTP Alert Action on a Netbotz device, the FTP server may return error codes which may viewed in the Appliance Log. The return codes may be used to further troubleshoot the problem.


      The return codes for FTP servers are:

      110 Restart marker reply. In this case, the text is exact and not left to the particular implementation; it must read: MARK yyyy = mmmm where yyyy is User-process data stream marker, and mmmm server's equivalent marker (note the spaces between markers and "=").

      120 Service ready in nnn minutes.

      125 Data connection already open; transfer starting.

      150 File status okay; about to open data connection.

      200 Command okay.

      202 Command not implemented, superfluous at this site.

      211 System status, or system help reply.

      212 Directory status.

      213 File status.

      214 Help message.On how to use the server or the meaning of a particular non-standard command. This reply is useful only to the human user.

      215 NAME system type. WhereNAME is an official system name from the list in the Assigned Numbers document.

      220 Service ready for new user.

      221 Service closing control connection.

      225 Data connection open; no transfer in progress.

      226 Closing data connection. Requested file action successful (for example, file transfer or file abort).

      227 Entering Passive Mode (h1,h2,h3,h4,p1,p2).

      230 User logged in, proceed. Logged out if appropriate.

      250 Requested file action okay, completed.

      257 ""PATHNAME"" created.

      331 User name okay, need password. 332 Need account for login.

      350 Requested file action pending further information

      421 Service not available, closing control connection. This may be a reply to any command if the service knows it must shut down.

      425 Can't open data connection.

      426 Connection closed; transfer aborted.

      450 Requested file action not taken.

      451 Requested action aborted. Local error in processing.

      452 Requested action not taken. Insufficient storage space in system.File unavailable (e.g., file busy)

      500 Syntax error, command unrecognized. This may include errors such as command line too long.
      501 Syntax error in parameters or arguments.

      502 Command not implemented.

      503 Bad sequence of commands.

      504 Command not implemented for that parameter.

      530 Not logged in.

      532 Need account for storing files.

      550 Requested action not taken. File unavailable (e.g., file not found, no access). (550 a:: no such directory means no diskette in a: drive.)

      551 Requested action aborted. Page type unknown.

      552 Requested file action aborted. Exceeded storage allocation (for current directory or dataset). 553 Requested action not taken. File name not allowed.

      Support on Buildings Management Systems and Pelco Security Solutions

       For support on Buildings Management Systems and Pelco Security Solutions please visit:  https://buildingskb.schneider-electric.com/

      Can I charge my batteries to 100% while using the SoC stop trigger in the AGS?

      Can I charge my batteries to 100% while using the SoC stop trigger in the AGS?

      Product Line:
      Conext Series solar equipment and accessories
      Conext Series solar systems with both the Conext Battery Monitor and AGS connected
      The maximum is 95% to protect the generator from situations where the battery is never detected as reaching 100%. There's unfortunately no way to combine start on SoC and stop on absorption exit. If you're certain that 95% won't be sufficient for your battery charging, then we recommend using Start DCV 30s and StopFloat for your triggers.

      Some batteries may not be fully charged at 95% SoC.

      What are the frame sizes for the Altivar 650 and Altivar 950 Process drive?

      What are the frame sizes for the Altivar 650 and Altivar 950 Process drive?

      Product Line:
      Altivar Process Drive (ATV650, ATV950)

      All serial numbers for Altivar 650 and Altivar 950


      The ATV650 drives are a version of the Altivar Process open drive (IP21) with a more robust housing for higher protection (IP55). 
      They come in 3 different sizes described below.

      Size A
      • 400/480Vac
        • Includes the ATV630 and ATV930 from frame sizes 1 to 3
        • 0.75 – 22kW (1 - 30hp)
        • ATV650U07N4, ATV650U15N4, ATV650U22N4, ATV650U30N4, ATV650U40N4, ATV650U55N4, ATV650U75N4, 
          ATV650D11N4, ATV650D15N4, ATV650D18N4, ATV650D22N4
      Size B
      • 400/480Vac
        • Includes the ATV630 and ATV930 frame size 4
        • 30 – 45kW (40 - 60hp)
        • ATV650D30N4, ATV650D37N4, ATV650D45N4,
      Size C
      • 400/480Vac
        • Includes the ATV630 and ATV930 frame size 5
        • 55 – 90kW (60 - 125hp)
        • ATV650D55N4, ATV650D75N4, ATV650D90N4

      Why wont my 751 passive infrared sensor work, it has a 20W flood light wired to it?

      The reason why the light/ sensor wont operate as deisred is because the minimum operating load is 40W. Due to the design of this sensor it is only capable of a maximum of 2 Amps and a minimum of 40W. It also has a maximum off-state leakage current of 5mA.
      If any of these values are exceeded this may casue the system not to work.

      For further information please visit https://www.clipsal.com/Trade/Products/ProductDetail?catno=751

      Is there a recessed wall mount sensor?

      No unfortunately we do not offer a recessed sensor. However we can offer a Surface mount sensor, part number 751R.
      Some of the key features are:
      • 10A maximum load current
      • Stand-by power consumption is less than 1W
      • 3 Wire
      • Neutral required
      • 30 seconds warmup time
      • 6m x 6m, 8.5m from sensor head, head rotatable through 120° rated detection field at maximum sensitivity
      • 5 seconds to 20 minutes timer delay range
      • Cables accommodates 3 terminals, up to 1 x 2.5mm² cable per terminal
      • Length of sensor 57mm
      • 100mm Diameter

      For furthur information please visit www.clipsal.com/Trade/Products/ProductDetail?catno=751R


      See the attached installation instructions.

      Material Safety Data Sheets (MSDS) for Symmetra PX2 and PX 250-500kw UPS

      MSDS information for various battery manufacturers utilized in Symmetra PX2 and PX 250/500 UPS systems

      Symmetra PX2, Symmetra 250-500

      All models/ All serial numbers

      The rules regarding MSDSs changed in 2016 and it’s no longer sufficient just to post a link to the battery MSDS that we use.  When the rules changed, we began authoring Safety Data Sheets (new name for MSDSs) that would meet the new regulations.  These newly authored Safety Data Sheets (SDS) are located at the following web page.  


      You’ll note changes –
      Safety Data Sheets are region specific.  There is a NAM format and an EU format.  

      The intent is to direct all customers to this location when they have SDS or MSDS questions.


      How do I cold start the Matrix-UPS?


      How do I start up a Matrix UPS on battery (cold start)?

      Product Line

      Matrix UPS


      All serial ranges


      A UPS can be codlstarted to provide battery power to equipment or as a troubleshooting step.


      The Matrix-UPS can be cold started through the LCD display screen, which is located on the front of the Matrix-UPS EU (Electronics Unit). When the dual pole input circuit breaker is moved to the ON position, this action turns the Matrix-UPS logic on. When the UPS Control menu on the LCD shows the 'Cold Start UPS' option, the unit is not able to go on line. That is, the unit will be operating on battery because it does not sense good utility voltage. After cold starting, the output frequency will always be 60 Hz on the North American, Worldwide, and Japanese models. Although the unit can be cold started, the Matrix-UPS is not intended for use as a portable power source.

      How can I view/export PowerChute Business Edition and PowerChute Network Shutdown log files?

      How can I view/export PowerChute Business Edition and PowerChute Network Shutdown log files?
      Product Line:
      PowerChute Network Shutdown, PowerChute Business Edition
      All supported OS
      PowerChute Business Edition
      The data log exists in the file <agent path>\DataLog on Windows systems and <agent path>/DataLog on Unix/Linux systems.
      To export the event log, navigate to the Event Log screen in the PowerChute user interface (UI), and click Export. This will export the event log to a text file, EventLog.txt, which is located in the agent directory.
      PowerChute Network Shutdown
      The event log exists in the file <install path>\groupn\EventLog.txt on Windows systems and <install path>/group1/EventLog.txt on Unix/Linux systems.

      You can view the DataLog and EventLog.txt files in the PowerChute Business Edition and PowerChute Network Shutdown user interfaces. To open those logs with other applications, please navigate to the directory that the files reside and then open with other applications such as WordPad, Notepad, Excel, VI etc.


      How do I get Modsoft to open up to full screen display while I try to run it under WIN 2000?

      The command to get Modsoft to change window size is ALT+<ENTER>; however Modsoft is not supported under WIN 2000. Users may try running the application under it; however successful operation cannot be guaranteed. One of the common problems is Modsoft will not open up to full screen. Regrettably there is no means to resolve this issue other than to reinstall the software under a supported OS, such as WIN 95, WIN 98 or DOS.

      Legacy KB System (APS) Data: RESL171500 V1.0, Originally authored by on , Last Edited by on
      Related ranges: Modsoft

      What are the temperature limit conditions for the Altivar Process Drive (IP55)?

      What are the temperature limit conditions for the Altivar Process Drive (IP55)?

      Product Line:
      Altivar 650 and Altivar 950 (IP55)

      All serial numbers for Altivar 650 and Altivar 950


      All IP55 Products, Drive Systems and Floor Standing Products can be operated up to 40°C without de-rating and up to 50°C with de-rating.
      The de-rating factor depends on the ambient temperature, the mounting position and the switching frequency (see installation manual).

      ATV930 - How does the Password protection work?

      ATV930 - How does the Password protection work?

      Product line:
      ATV900, ATV930, ATV950, ATV960, Altivar Process


      Firmware evolutions being worked on.

      As of April 2017, Password is used to lock access for uploading or downloading a drive's configuration. This password will not lock menus or parameters in the keypad.

      Evolution is planned for the further ATV900/ATV600/ATV340 versions in order to have password to protect the keypad access, in addition to this parameter restricted access.

      Can you hardwire the input/output of the Matrix-UPS?

      Can the input or output of a Matrix UPS be hardwired?

      Product Line:
      Matrix UPS

      All serial ranges

      A user may wish to hardwire the input/output of the UPS rather than use the supplied input power cord.

      APC offers a hardwire kit to be used with the 120/208 Matrix-UPS product. The part #s for these kits are as follows:

      MXA001: 5kVA Hardwire kit
      MXA002: 3kVA Hardwire kit

      These hardwire kits replace the standard back plate and allows the input and output of the Matrix to be wired directly to their corresponding electrical panels. This kit provides 120V, 208V and 240V on the output. The electrical specifications for both the Matrix 3kVA and Matrix 5kVA UPS systems are as follows:

      Input Over-current Protection
      3kVA: 20 A
      5kVA: 30 A

      Input/Output Wire Size
      3kVA: 12 AWG
      5kVA: 10 AWG

      Details Returned from MIB2 UPS Devices via Netbotz Advanced Device Crawlers


      Details Returned from MIB2 UPS Devices via Netbotz Advanced Device Crawlers

      Product Line:



      NetBotz version 2 Advanced Device Crawlers.


      The following information can be queried via Advanced Device Crawlers for MIB2 UPS systems assuming the MIB2-UPS DDF (Device Definition File) is installed on the NetBotz appliance and the MIB2 UPS is SNMP enabled. Please note that not all information listed below is available on all MIB2 UPS models.


      • Vendor
      • Description
      • Battery Status
      • Time On Battery
      • Battery Run Time Remaining
      • Remaining Battery Capacity
      • Battery Voltage
      • Battery Current
      • Battery Temperature
      • Input Line Voltage
      • Input Line Current
      • Input Line True Power
      • Output Source
      • Output Frequency
      • Output Line Current
      • Output Line True Power
      • Output Line Current Load
      • Bypass Frequency
      • Bypass Line Current
      • Bypass Line True Power

      * APC UPS units with some network card firmwares do not work with the standard MIB2 UPS OIDs. Netbotz does have an APC specific DDF file that does return this information on most UPS units.

      Does pressing the Reset button on a Metered or Switched Rack PDU or Rack ATS cause the outlets to reboot?


      Does pressing the pinhole reset button on a Metered or Switched Rack PDU or Rack ATS cause the outlets to reboot or disrupt power in any way?

      Product Line
      • Rack Power Distribution - Power Distribution Units and Automatic Transfer Switch
        • AP77XX - Rack ATS
        • AP44XX - Rack ATS
        • AP78XX - Metered Rack PDU
        • AP79XX - Switched Rack PDU
        • AP84XX - Metered By Outlet PDU
        • AP86XX - Switched Rack PDU with Metering By Outlet
        • AP88XX - Metered Rack PDU 2G
        • AP89XX - Switched Rack PDU 2G

      • All installations


      Many users ask if rebooting their network management card affects outlet status or power output of their device. See below for additional information.


      Resetting the network interface using the small reset button near the network jack has no effect on the electrical output of the Rack PDU or Rack ATS. This procedure simply reboots the embedded Network Management Card, which will render the network port inaccessible for a short period of time while it reboots.

      However,  on AP7XXX series, if you press and hold the display button (the gray button near the LCD) while the network interface is rebooting (you will see 88 on the display) and the outlets WILL turn off. APC recommends that you never press the display button during reboot of the network interface and there is no functional reason that requires a user to ever do this.


      What are the Condensate Pump lift specifications for your InRow product line?

      What are the Condensate Pump lift specifications for your InRow product line?
      Product line:
      All InRow Units
      Data Center Cooling
      All of the InRow products come with a factory-installed condensate pump piped internally to the condensate pan. Each pump has different specifications.  If needed, more details can be found in the technical manual as well.

      InRow ACSC100, ACSC101, ACRD100, ACRD200, ACRC100, ACRC103
      Pacific Electronic: Capable of pumping 1.3 GPH (5 L/h)
      InRow SC, RD (300mm):
      • Charles Austen Pump - Capable of pumping 13.5 GPH (51 L/h) liquid a maximum distance of  65ft (20m) , which may include a maximum lift of 20 ft (7 m).*
      • Pacific Electronic - Capable of pumping 1.3 GPH (5 L/h) liquid a maximum distance of  50 ft (15.2 m), which may include a maximum lift of 16 ft (4.9 m).
      NOTE: Dual floats are included with the unit. One float is used for condensate pump control, the other to generate condensate pan overflow alarms.

      ACRP50x, ACRP10x, ACRD50x, ACRC50x, ACRD60x, ACRD60xP
      • Hartell - Capable of pumping 8.45 GPH (0.53 L/m) liquid a maximum distance of 18 m (60 ft), which may include a maximum lift of 11.5ft (3.5 m).
      *except for ACRC100 and ACRC103
      x = denotes the voltage is for 208v or 460v

      Why do I measure low resistance on my Smart-UPS step down transformer?


      Why do I measure low resistance on my Smart-UPS step down transformer?

      Product Line:

      Smart-UPS, Smart-UPS Online


      All transformer models, All Serial Numbers


      Transformers e.g. the APC SURT002 will indicate a Low Resistance when measured with a standard Multi Meter. Although this seems strange, it is quite normal as the total impedance isn't taken into account with this measurement.

      Inductive Reactance occurs when the current flow in a circuit is reduced due to induction. This is a sort of "magnetic Resistance" and it reduces the flow of current in a circuit, appearing as an energy loss just like resistance. Impedance is made up of Inductive Reactance + Resistance.


      In an AC circuit the total impedance consists of the resistance of the conductor and the inductive reactance when AC is applied. However the standard Multi Meter will only measure the normal resistance of the conductor. This value is normally quite low and does not take the Inductive Reactance into consideration.

      In some of our transformers such as the APTF10KW01 or the APTF20KW01 the resistance value to Earth (Ground) may also appear low. This is due to the fact that the terminals 7 or 8 (Neutral) are tied to earth to create a TN network.

      The customer should be made aware that a special meter capable of measuring total impedance should be used to get a correct value. Should an insulation resistance test be necessary, then the link to earth should be removed.

      What is Peak Surge Current rating?


      What is Peak Surge Current rating?

      Product Line:

      All APC  Surge and Back-UPS products.


      All APC Surge and Back-UPS products.

      Cause / Resolution:

      Peak Current Rating (Maximum Current Rating) is the most current that the MOV device can handle without suffering irreversible damage.

      The conditions are: peak current, wave shape, post test qualification/measurements [voltage & current], and time.

      The MOV is subjected to a baseline voltage measurement with 100mA across the terminals. Then a 8x20 mS impulse current waveform with a peak of x kA (perhaps 2,500A) is applied. Then the voltage is remeasured with 100mA across the terminals. If it is still within +/- 10%, that kA rating is OK. The current is then boosted (say x+100A) remeasured, tested, remeasured, ... When the 100mA measurement falls outside the +/- 10% allowable window, the last kA measurement was valid.

      Some mfrs state kA ratings with 1 and 2 pulses. You will see a lower kA rating with the 2 impulse because the part has already been hammered once , it is warmed up, the material within the part has not completely 'reset' itself , and
      the second impulse must be within a specified time interval. The longer you can wait, the cooler the part, the better it can handle the next impulse.

      In conclusion, it's the maximum peak current, using an 8 x 20mS waveform, that a MOV can handle where the 100mA voltage measurement test deviates less-than +/- 10% from the original baseline."

      What are your Cooling Product Energy efficiency rating (EER)?

      What are your Cooling Product Energy efficiency rating (EER)?
      Product line:
      All Units.
      All Serial Numbers.
      Energy efficiency rating (EER) or coefficient of performance (COP),  is a measure to assess heat pumps and air conditioners.  The Energy Efficiency Ratio (EER) of a particular cooling device is the ratio of output cooling (in Btu/hr) to input electrical power (in watts) at a given operating point. EER is generally calculated using a 95F outside temp and an inside (actually return air) temp of 80F and 50% relative humidity. The EER is related to the coefficient of performance (COP) commonly used in thermodynamics, with the primary difference being that the COP of a cooling device is unit-less: the cooling load and the electrical power needed to run the device are both measured using the same units, e.g. watts. Therefore a COP is universal and can be used in any system of units. EER = COP * 3.412 .

       In regards to Schneider Electric's cooling products this can be calculated from the Technical Data Manuals, or Technical Data Specifications. Customer can calculate these if they choose, however, the "rating point" or "condition" need to be known.  This could be the expected return air temps or another value based on a competitors product rating point. 

      EER = rated cooling capacity output (kW)/cooling input power (kW)

      COP = rated heating capacity output (kW)/heating input power (kW)


      Changing counter value while Hot Standby switchover

      Goals and Symptoms

      This resolution describes a workaround for an effect by a Hot Standby switchover with RIO and a software counter.
      The RIO cable connection to the Primary CRP 931 fails.
      An input from a 140 DDI 353 00 module has value "1" at the same time.
      The Standby system switches to Primary (what is correct).
      But the input bit gets for a short time the value "0", because the CRA is not available while switchover.

      If the binary input is linked to a software counter the counter will change the value. Also affected are program parts, which use this binary input together with Edge detection.

      Facts and Changes

      Problem is known with the following components:
      Concept 2.6 SR2
      140CPU43412A, EXEC 1.25, Kernel 1.01
      140CHS11000, EXEC 1.04, Kernel 1.00
      140CRP93100, EXEC 1.15, Kernel 1.01
      140 DDI 353 00

      It should exist with all Hot Standby systems equiped with 140CRP93100, every discrete Input and a software counter or a Edge detection is linked to the Input module.

      Causes and Fixes

      Use the EN input of the software counter and link it to the healthy bit of the Input module. This avoids to increase the counter during RIO cable interrupt.

      Legacy KB System (APS) Data: RESL167770 V1.0, Originally authored by on , Last Edited by on
      Related ranges: Modicon Quantum

      Why do I see memory usage increase when using Internet Explorer 7 to view PowerChute Business Edition v9.1.x Agent?

      Internet Explorer 7 memory leaks / memory usage increases when using the PowerChute Business Edition v9.1 and above Agent.

      Product Line:
      PowerChute Business Edition version 9.1 and above Agent

      Microsoft Windows OS with Internet Explorer version 7 (IE7)

      JavaScript memory leak.

      Web pages to articles that list the types of memory leaks that can occur in JavaScript:

      Microsoft  article "Java Script Memory Leak Detector"

        IE7 is not a supported web browser with PowerChute 9.1.x You can resolve the issue by upgrading to the latest version of Internet Explorer.
      NOTE: Neither closing the IE tab with the Agent interface or logging out of the Agent solves this problem.

      What are the operating temperature specs of the 73xx for both Tropical and non-Tropical forms?

      Operation temperature of a 73xx series meter is -20°C to +60°C (-4°F to +140°F) ambient air, and is the same for both the Tropical and non-Tropical boards. In addition, Storage Temperature is 0°C (-22°F) to +85°C (185°F) and Relative Humidity is 5% to 95% RH non-condensing.

      Last Revised: November 22, 2007
      Applies To: ION 7300 / 7330 / 7350
      All content © 1992-2007 Schneider Electric

      Legacy KB System (APS) Data: RESL189587 V1.0, Originally authored by KBAdPM on 11/23/2007, Last Edited by KBAdPM on 11/23/2007
      Related ranges: ION7300

      Why the LED light for a combination of a 753 with LED light strobes, when the sensor switches off? Is there a solution to fix this problem?

      Yes there is a solution. Try the following:

      Option1: You will need to change your 753 to a 753R
      Option 2: use a 31CAP, 31LCDA, or add a relay.

      This is a compatibility issue between our sensor and some other company's LED lighting.
      This solution will work 95% of the time but not always.
      For best results you need to use Clipsal LED lights.

      For more information on our sensors visit the website at www.clipsal.com/Trade/search-results and click on the link to view a brochure.

      What is the replacement for 5101R,1 Channel C-Bus Relay 250V AC 10A inductive load?

      Unfortunately we do not have a direct replacement for 5101R. L5504RVFP would be an alternate.

      Key Features

      • 220 - 240 V AC supply voltage
      • 47 - 53 Hz and 57 - 63 Hz supply frequency
      • Single phase
      • Voltage free, magnetically latched contact type
      • Greater than 60,000 switching operations
      • Compatible with resistive, inductive, incandescent and fluorescent loads up to 10 A
      • 2 x 1.5 mm² or 1 x 2.5 mm² terminals
      • 0˚C - 45˚C operating temperature
      • 10 - 95% RH, humidity range
      • 8 DIN modules
      • DIN mounted
      • 2 x RJ45 sockets connection

      For further information, please visit https://www.clipsal.com/Trade/Products/ProductDetail?catno=L5504RVFP

      What is the part number for a 12 channel relay with no power supply?

      The part number for a 12 channel relay with no power supply is a L5512RVFP.
      Some of the key features are:
      • 220 - 240 V AC supply voltage
      • 47 - 53 Hz and 57 - 63 Hz supply frequency
      • Single phase
      • Voltage free, magnetically latched contact type
      • Greater than 60,000 switching operations
      • Compatible with resistive, inductive, incandescent and fluorescent loads up to 10 A
      • 2 x 1.5 mmsq or 1 x 2.5 mmsq terminals
      • 0 - 45 deg C operating temperature
      • 10 - 95% RH, humidity range
      • 12 DIN modules
      • DIN mounted
      • 2 x RJ45 sockets connection
      For further information please visit Clipsal - L5512RVFP - 12 Channel Relay, Voltage Free, Without Power Supply


      NEMA Housing and Enclosure Rating Information,

      A user would like to know the different NEMA Housing and Enclosure Ratings and information about each rating.
      Product Line
      NEMA housing and enclosures.
      NEMA ratings
      For indoor use only; primarily utilized as protection against contact with the enclosed circuits. Commonly used on panel mounted recorded, meters, etc.

      (also known as “Weatherproof”, “Splashproof”, “Sleetproof”) For outdoor use; protects enclosed components from wind-blown dust, rain, sleet and external icing.
      This enclosure is usually inadequate for protecting modern electronic instrumentation.

      CLASS 4 WATERTIGHT (also known as “Hoseproof”) 
      Similar to “3” above; but also passes the “Hose Test”, which is described as: a 1 inch nozzle, delivering 65 gpm of water, from a distance of 10 feet, from all directions, for a 5 minute time period, no water leak to the interior is allowed. 
      This enclosure is the one of choice for most general outdoor applications.

      Same as “4” above; also constructed of corrosion resistant materials suitable for the corrosive conditions of the installed location. The generally preferred materials are polyester/glass, stainless steel, and epoxy coatings.
      This enclosure is the “standard” for protecting today’s plant instrumentation.

      Used for protection against temporary submergence to limited depths (a 15-foot spec is common). These enclosures should also be rated NEMA 4X for conditions at the installation site.
      Typical uses are in manholes, quarries, mines, etc.

      CLASS I is a location with an atmospheric mixture of flammable gases. The enclosure is intended to contain an explosion internally while the surrounding ambient gas-air mixture is not ignited. These enclosures should also be rated NEMA 4 so as to be suitable for instrument service.
      DIVISION I is a location in which hazardous mixtures are expected during normal operations.
      DIVISION II is a location in which the flammables are contained and escape only during a system rupture.
      GROUP A: acetylene
      GROUP B: hydrogen, manufactured gas or equivalent
      GROUP C: ethyl ether, ethylene, cyclopropane, or equivalent
      GROUP D: gasoline, hexane, naphtha, butane, alcohol, acetone, lacquer solvents, natural gas, and equivalents. Commonly used by oil refineries, petrochemical plants and sewage treatment plants.

      CLASS II is a location hazardous because of combustible dusts. The enclosure excludes the dust from the internal power sources and ignition is thereby prevented. It also must not overheat when covered by a layer of the dust.
      DIVISION I locations are where suspended combustible dusts are expected during normal operations.
      DIVISION II locations are where normal operations cannot put the dust into atmospheric suspension.
      GROUP E: Metal dusts, electrically conductive, such as those of aluminum, magnesium, and their alloys.
      GROUP F: Other dusts, electrically conductive, such as those of carbon black, coal, and coke.
      GROUP G: Dusts such as those of grain, flour, and starch.

      Intended for indoor use; provides protection against dust and dripping liquids; used in machine shops, etc.

      Similar to “12” above, but also provides protection against spraying oil, water, coolant, etc. Used for enhanced protection of electronic instruments in manufacturing plants and similar environments.

      What are the stand alone short circuit current ratings on the LC1D** contactors?

      Tesys D SCCR

      Product Line:
      Contactors and Overload Relays

      TeSys™ D Contactors and Overload Relays
      The contactors have a stand alone withstand rating that has been established by UL and is based on the maximum horsepower rating for a given device. However, only combination type starters are supplied with short circuit protective devices having a short circuit current rating.

      They are as follows:
      Horsepower SCCR (A)

      0 thru 1 1,000
      1 thru 50 5,000
      51 thru 200 10,000
      201 thru 400 18,000
      401 thru 600 30,000
      601 thru 900 42,000
      901 thru 1600 85,000
      1601+ 100,000
      Show More