Automatic Indoor Light Switches
Setting the future in motion
Automatic light switches that won’t leave you in the dark
Why stumble around in the dark trying to find a light switch, when you could have a switch that finds you?
The Clipsal 751 Series Infrascans are automatic light switches that instantly activate lighting in response to body heat movement through the detection field.
Besides their obvious user convenience, the 751 models can also provide dramatic cost savings in both commercial and domestic environments as lights switch off automatically when not needed.
The 751R also has the advantage of being able to use multiple units to control a single load.
Adjustable sensitivity and time delay
Lights are automatically switched on whenever a person enters the Infrascan’s detection field (6x6 metres from sensor head).
The same lights are then turned off after a suitable delay once the area is vacated.
The length of the delay is fully adjustable to a period of between 5 seconds and 20 minutes. The devices retrigger each time movement is detected, resetting the time delay period.
By adjusting the unit’s light level sensitivity, you can also control the minimum ambient light level at which the device will activate (from full daylight to almost total darkness), turning lights on only when you need them.
Ease of installation
Simply fix and wire the mounting flange, then attach the sensor head to the wall or ceiling with a single screw. With the variety of mounting centres provided by the mounting flange, the 751 models are compatible with a large range of accessories.
When mounted, the 751 model’s sensor head is rotatable through 120° allowing easy adjustment of the sensing zone.
Diagram: Using two Infrascans, to control lights (751R relay type Infrascan only)
751
The 751 features a maximum loading of 2 amps for fluorescent or incandescent lighting making it ideal for use in homes, offices, motels and other areas where irregular occupancy warrants this form of lighting control.
Being a two wire device, the 751 does not require a neutral connection.
751R
A number of 751Rs can be operated in parallel to control the same load, with maximum loading of 10 amps. It is the perfect solution for corridors, lecture theatres and other areas in which a single Infrascan would have insufficient range.
The 751R is a three wire device, and therefore requires a neutral connection to operate.
| Feature |
Advantage |
Benefit |
Easy to mount
|
Simply fix and wire the flange, then attach the sensor head with a single screw |
Simple installation, fast fit off |
Sensor head is rotatable through 120°
|
Easy adjustment of sensing zone (6x6 metres)
|
Simplified commissioning, less time taken |
| Variety of mounting centres |
Compatible with accessories that utilise 60.3mm, 84mm or 50mm mounting centres |
Easy fitting for the installer in all situations |
| “Three wire” device (751R only) |
No leakage current |
No retrigger problems |
| “Two wire” device (751 only) |
Does not require a neutral connection |
Faster installation and less cable needed and suitable for retrofit when no neutral present |
751 rated at 2A
751R rated at 10A
|
Allows usage with a variety of loads (See Note 1 in specifications for more details)
|
Enables usage in a wide variety of applications |
| Fully adjustable light sensitivity and time out settings |
Enables load to be switched on when ambient light falls below desired level. Time out function means load is not operating unnecessarily |
Power savings to the customer in a variety
of different installations |
|
Specifications
| Specifications |
Advantage |
Benefit |
Wiring Configuration
|
2 wire |
3 wire |
Switching Method
|
Triac |
Relay |
| Operating Voltage Range |
192-264V a.c. |
| Operating Frequency |
50Hz |
| Maximum Load Current |
2A |
10A |
| Minimum Load |
20mA |
0mA |
| Detection Method |
Passive infrared detection of thermal radiation |
| Compatible Lighting |
Incandescent and fluorescent (See Note 1) |
| Time Delay |
5 sec. to 20min. (nominal), infinitely variable with this range |
| Ambient Light Level Adjustment |
From full daylight to below 1 lux (darkened room) |
| Detection Area |
6x6m, 90° from sensor head.
Sensor head rotatable through 120° when installed |
| Installation Height |
2.4m optimum mounting height. Unit may be wall mounted. Other installation heights may result in decreased scanning area. |
| Leakage Current in the Off State |
Maximum of 2.0mA @ 25°C
(See Note 2)
|
| Operating Temp. Range |
0° to + 40°C |
| Overall Dimensions |
100mm diameter by 57mm high
|
| Mounting Centres |
60.3mm, 84mm and 50mm |
| Standard Colour |
White Electric |
| Terminals |
Line, load, 2x loop.
Accepts 3x2.5mm2 cable |
Line, load, neutral, loop.
Accepts 3x2.5mm2 cable |
Notes
1. Other loads, including most contactors can be driven. Contact your nearest Clipsal office or representative for advice. For correct operation of the 751, fluorescent loads should be Power Factor corrected.
2. Two wire devices draw their power through the load. This results in current flow through the load even in the off state. Due to advances in technology and design the 751 Infrascan typically draws only 2mA @ 25°C.
Clipsal Infrascans are designed as a lighting control device only. Clipsal does not recommend their use in conjunction with audible alarm systems.
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