Specifications

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Range of product
TeSys D
Range
TeSys
Device short name
LA4D
Product or component type
suppressor module
Product compatibility
  • 3P LC1D80...D150
  • 4P LC1D80004...D115004
  • 4P LC1D40008...D80008
    • Mounting location
      top
      Mounting mode
      by screws
      Suppressor technology
      RC circuit
      [Uc] control circuit voltage
      110...240 V AC 50/60 Hz
      Maximum peak voltage
      3 Uc
      Net weight
      0.018 kg
      Compatibility code
      LA4D
      Ambient air temperature for operation
      -25-55 °C
      Ambient air temperature for storage
      -40-80 °C
      Sustainable offer status
      Green Premium product
      REACh Regulation
      Free of Substances of Very High Concern above the threshold
      REACh free of SVHC
      Yes
      EU RoHS Directive
      Compliant
      Toxic heavy metal free
      Yes
      Mercury free
      Yes
      RoHS exemption information
      Yes
      China RoHS Regulation
       Pro-active China RoHS declaration (out of China RoHS legal scope)
      Environmental Disclosure
      ENVPEP111253EN
      WEEE
      The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
      Warranty
      18 months

      Documents & downloads

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      • CAD Files and Packs

      • Product Brochures

      • Technical Data Catalogues

      • Installation Instruction

      Frequently Asked Questions

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      What is the LA4DE1U alternative?

      LA4DE1U TeSys D - suppressor module - varistor - 110...250 V AC/DC

      to suit D40-D115 (3P) and D65-115 (4P):
      LA4DE2U TeSys D - suppressor module - varistor - 110...250 V AC
      OR
      LA4DE3U TeSys D - suppressor module - varistor - 110...250 V DC
       

      What the DC current contact ratings for the CAD50, CAD32, CAD503, CAD323, CAD506, and CAD326 relay?

      Issue:
      Checking on the DC current contact ratings for the CAD50, CAD32, CAD503,  CAD323,  CAD506, and  CAD326 relay.

      Product Line:
      CAD Industrial Relays

      Environment:
      Relays and Timers

      Resolution:
      Inductive:
      125V DC - 0.55 Amps make and break, 2.5 Amps cont.
      250V DC - 0.27 Amps make and break, 2.5 amps cont.
      600V DC - 0.10 Amps make and break, 2.5 Amps cont.

       

      What is the replacement AC coil for CAD32 and CAD50 relay?

      Issue:
      AC coil replacement for CAD32 and CAD50

      Product Line:
      Relays

      Environment:
      Tesys CAD Control Relays

      Cause:
      Product selection

      Resolution:
      Volt = coil part number
      12 = LXD1J7
      21 = LXD1Z7
      24 = LXD1B7
      32 = LXD1C7
      36 = LXD1CC7
      42 = LXD1D7
      48 = LXD1E7
      60 = LXD1EE7
      100 = LXD1K7
      110 = LXD1F7
      115 = LXD1FE7
      120 = LXD1G7
      127 = LXD1FC7
      200 = LXD1L7
      208 = LXD1LL7
      220/230 = LXD1M7
      230 595 21 LXD1P7
      230/240 = LXD1U7
      277 781 30 LXD1W7
      380/400 = LXD1Q7
      400 = LXD1V7
      415 = LXD1N7
      440 = LXD1R7
      480 = LXD1T7
      600 = LXD1X7
      690 = LXD1Y7

       

      What do the LA4D timing modules require for mounting on LC1D40A through LC1D65A contactors?

      Product Line:
       
      Tesys D line Contactors and Accessories

      Resolution:
       
      Mounting this module to TeSys LC1D40A through LC1D65A contactor requires the use of the LAD4BB3 wiring adaptor. This adaptor can be fitted only to contactors with no coil suppressor.
       

      Will the LA4DC1U work with the new CAD32BD relay?

      Issue:
      Will the LA4DC1U work on the CAd32BD relay

      Product Line:
      IEC relays and accessories

      Environment:
      Products sold and used in the United States

      Cause:
      Identifying product compatibility

      Resolution:
      The CAD32BD with DC coil has built-in coil suppression protection as standard so the LA4DC1U is not needed.


      CTA-ID : 2031917

      Is the voltage code BD3 valid for a CA3DN40 relay?

      Issue:
      Is the voltage code BD3 valid for a CA3DN40 relay?

      Product Line:
      Tesys Relays

      Environment:
      All Products

      Cause:
      Product selection

      Resolution:
      No.  The voltage code BD3 is for the CA4D Low Consumption relays only.   A 24 volt DC coil with built in transient suppression is not available on the CA3D relay.    Use the add on LA4DA1E varister style or the LA4DC1U diode style add on transient suppressors on the CA3D relays.
       

      Will the LA4DC1U diode suppressor mount to current Tesys D DC coils?

      Issue:
      Will the LA4DC1U diode suppressor mount to current Tesys D DC coils?
      Product Line:
      IEC contactors and starters

      Environment:
      Products sold and used in the United States

      Resolution:
      No. The LA4DC1U diode unit will only fit the older TeSys D contactors. Tesys D DC coils include suppression automatically, it`s not needed.

      What is the replacement for LA1DN22 ?

      LADN22

      Will a LAD4RCE or LA4DRCU also fit a LC2D09 thru LC2D38 reversing contactors?

      Issue:
      Identifying accessories for reversing contactors

      Product Line:
      IEC contactors and starters

      Environment:
      Products sold and used in the United States

      Cause:
      Accessories used on non-reversing contactors are also needed for reversing application

      Resolution:
      Yes, the LC2D contactors are provided standard with one on the left contactor. One may be added to the right contactor.


      CTA-ID : 2022733

      Does LC1D80BD have internal bi-directional diode?

      Issue:
      LC1D80 and LC1D95 bi-directional diode

      Product Line:
      TeSys™ D Contactors

      Environment:
      Contactor Accessories

      Resolution:
      LC1D80 and LC1D95 does not have an internal bi-directional peak limiting diode on their DC coils. LA4DC3U (Screw connection of wire to the contactor coil terminals 24–250 Vdc, 3p-4p) must be ordered separately.

      The LC1D09 to LC1D38 have an internal diode by default on their DC coils.

      Can the old D-line front mount attachments fit on the new CAD relays?

      Issue: 
      Can the old D-line attachments fit the new CAD relays
       
      Product Line:
      IEC Contactors

      Environment:
      Tesys D contactors and relays
       
      Cause:
      Using old accessories with new CAD relays

      Resolution:
       Yes, the old style front mount latch attachments, timing attachments, and auxiliary contacts will mount on the new Tesys D-line relays.

      No action on logical input, logical input out of order.

      Goals and Symptoms

      No action on logical input, logical input out of order.

      Facts and Changes

      ATV31
      Logical Input
      LI1, LI2, LI3, LI4

      Causes and Fixes

      This phenom can occur when the 24V used for the logical input is connected in some coil of relay or of electromagnet and so on.
      It's due to the overvoltage generated by Ldi/dt when you cut a continue voltage on a coil (L).
      It's possible to reduce the level of this overvoltage, use LA4KC1B or LA4DE2U.

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