Crydom SSR's

How to connect Senseware to Crydom Solid State Relays

Julien Stamatakis avatar
Written by Julien Stamatakis
Updated over a week ago

Solid State Relays, or SSR's, allow you to use Senseware's Timer Control bridges to remotely control any circuit or piece of equipment. You can perform these controls either based on schedules, manual overrides; and even based on other sensors in your Senseware network.


1. Make sure that your Node is powered and connected to the network.
2. Connect the Timer Control bridge to an available port on the Node.
3. Unscrew the 4 screws on the SSR to prepare for wire entry.

4. You will need two hook-up wires to connect the SSR to the Timer Control bridge. Attach one end of each wire to the terminals labeled 3 and 4 on the SSR. Connect the positive lead to the +3/A1 terminal and the negative lead to the 4/A2 terminal. Note: The SSR will not operate if the positive and negative leads are not oriented correctly.

5. Attach the other end of each wire to the Timer Control bridge, making sure to pay attention to the positive and negative polarity indication.

6. Attach the source and load wires of the circuit you wish to control to the terminals labeled 1 and 2 on the SSR. For AC loads the orientation does not matter.

The light labeled Input Status on the SSR will indicate if the Timer Control bridge is currently closing the relay.


Make sure that you configure your schedule appropriately in the Controls tab. You can control Manual Overrides on the Dashboard by creating the relevant widget.


If the positive and negative leads coming from the Timer Control bridge are installed the wrong direction the SSR will not operate. You can remedy this by swapping the wires on the Timer Control bridge.

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