Solid State relays Solid State Relays are high speed state-of-the-art semiconductor load switching relays, that when used with “PID” or proportional output temperature controllers, will give you much improved accuracy in controlling your temperature.
When using a solid state relay, the “cycle time” of a controller can be reduced from 15 seconds (typical for contactor control) to 1 second for the SSR. This allows the temperature controller to switch much smaller bursts of power to your elements, thereby delivering smaller amounts of power to the elements, reducing overshoot and improving accuracy of control!
We offer these SSR's in current ratings of 10 amps, 25 amps and 40 amps.
Please note: Due to "derating constraints" all SSR's should be derated. This means our 40 amp SSR should be limited to about 32 amps and the 25 amp to about 20 amps. Please refer to our app note on this matter and general application and installation guidelines.
They are available in 250 VAC and 480 VAC load circuit voltage rating.
Our SSR's have three control options:
Our SSR’s have “Zero Voltage Turn-on”:
Our SSR’s have “Zero Current Turn-off”
Our SSR’s have a built in “Snubber Circuit”