3054_0 SSR Relay Board 0.5A, 3054

£12.24 £10.20

Rated for 28VAC/0.5amp or 40VDC/0.5amp switching, this SSR is controlled by a digital output.


Solid State Relays, or SSRs, are devices designed to operate like standard relays but without mechanical motion.

By simply providing a small voltage to the control side of the circuit, you can open or close a higher powered circuit on the load side.

The SSR Board is safe to use with sensitive control devices like microprocessors, and will not damage a Phidget device or your PC. Optoisolation between the control inputs and outputs of the SSR in the form of an LED paired with a set of optically-controlled MOSFETs provides protection from output to input. An on-board diode across the relay output protects the board from static electricity and surges from inductive loads.


This SSR board can be controlled with Phidget digital outputs.


Controlled By

Digital Output (5V)

Electrical Properties

Relay Output Type


Isolation Method


Dielectric Strength

1.5 kV AC

Control Voltage Min

3 V DC

Control Voltage Max

30 V DC

Control Current

10 mA

Load Voltage Max (DC)

40 V DC

Load Voltage Max (AC)

28 V AC

Load Current Max (AC)

500 mA

Load Current Max (DC)

500 mA

Turn-on Time Max

5 ms

Turn-off Time Max

0.2 ms

Contact Resistance Max

850 mΩ

Physical Properties

Recommended Wire Size (Load)

16 - 26 AWG

Recommended Wire Size (Control)

16 - 26 AWG

Operating Temperature Min

-40 °C

Operating Temperature Max

85 °C