Simple and useful transistor switched relay board allows you to control external equipment using the onboard mains rated relay from a simple 5V logic or LED signal. It can be used in automation applications, control rooms, VOX circuits etc.
The relay is triggered when a signal of over +1.4Vdc is applied to the input and turns off when the voltage falls to zero. The output is a SPDT mains rated relay with Normally Open and Normally Closed connection options capable of handling up to 250Vac or 28Vdc @ 5 Amps maximum current.
Output status indicator LED, DC power input reverse polarity protection and relay back-emf protection diode.
SpecificationsInput Voltage | 9-12Vdc (e.g. Order Code 660.446UK and connector 777.001UK) |
DC Power Current | Standby <1mA, ~40mA when active |
Signal Input Current | ~5mA @ 12Vdc |
Relay Trigger Input | LO: 0 - 0.8V HIGH: 1.4Vdc - 12Vdc |
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) |
Fixing Holes | 4 x M3 |
Overall dimensions (mm) | 49 x 37 x 20 |
Enclosure | WCAH2855 |
Board Connections | Screw terminal blocks |
Product Formats | SELF-ASSEMBLY Electronic Kit (KT) or PRE-ASSEMBLED Electronic Module (AS) Product Formats Info |
Documentation | User Manual |
In addition to the standard 12V version described above, we can also supply the pre-assembled version with components for 6V or 24V supply voltage. See Order Code AS3044-6V and AS3044-24V below.