New improved version with 5 Amp mains rated relay output.
This board uses an LDR and built-in hysteresis of the 741 op-amp IC circuitry to eliminate the problem of relay chatter at the trigger threshold. This allows the switch to operate effectively with both fast and gradual light change (i.e. dawn and dusk).
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.
| Supply Voltage | Regulated 10 - 15Vdc |
| Current consumption | Light Activated: <1.5mA standby, <46mA relay active Dark Activated: <2mA standby, <45mA relay active |
| Suitable Power Supplies | |
| Output Type | 1 x SPDT Relay |
| Maximum Output Load (Resistive) | Up to 240Vac or 28Vdc @ 5 Amps max.(Relay Datasheet) |
| Output Connections | NO, NC, C (Relay FAQ) |
| Board Dimensions | ~ 37 x 64 x 20mm |
| Fixing Holes | 4 x M3 |
| Enclosure | WCAH2855 |
| Board Connections | Screw terminal blocks |
| Product Formats | SELF-ASSEMBLY Electronic Kit (KT) or PRE-ASSEMBLED Electronic Module (AS) Product Formats Info |
