3079A - Basic Light / Dark Activated Switch
This
circuit uses a simple LDR based circuit in super-Darlington set-up to
activate the onboard relay (see
Relay
FAQ for details).
Best suited to applications where the change in light level is large and the transition quick.
The Light/Dark mode switch is used to select either light or dark activation of the relay. This enables the unit to be operated in its low-current standby mode for the majority of the time according to your application.
- Adjustable turn-on sensitivity
- Switch to select either 'light' or 'dark' activation
- LED status indicator
| Technical Specifications | |
|---|---|
| Supply | Regulated 12Vdc (Order Code PSU445 with connector 778.106) |
| Current consumption | Light Activated: <0.5mA standby, <42mA relay active
Dark Activated: <0.5mA standby, <40mA relay active |
| Output | 1 x SPDT Relay |
| Maximum Output Resistive Load |
5 Amps @ 45Vac/70Vdc max. (Relay Datasheet) |
| Relay Connections | NO, NC, C (Relay FAQ) |
| Board Dimensions | 33 x 53mm |
| Fixing Holes | 4 x M3 |
| Board Connections | Screw terminal blocks |
| Product Format | Electronic Kit (KT
 )
or Assembled (AS)
more |
| Documentation |
 User
Manual |
| Product Code |
Description | Price each exc. VAT (GB Pounds £) | INC.
VAT each 1+ |
Quantity | |
|---|---|---|---|---|---|
| 1+ | 5+ | ||||
3079AKT |
Basic Light / Dark Activated Switch Kit | £7.62 | £6.47 | GB£8.95 | |
| AS3079A | ASSEMBLED Basic Light / Dark Activated Switch | £11.87 | £10.09 | GB£13.95 | |
Please see our Sensing Devices page for more products like this
