Panel Mount SSR for PID Temperature Controller
The standard output of a PID controller in India – Autonics, Selec, Omron E5CC, Fuji, Delta – is a DC pulse designed to drive a DC-input SSR. Choose the correct panel-mount SSR + heatsink and your PID loop will hold set-point tightly for years.
Compatible PID Controllers
- Autonics – TZN4S, TK, TC series
- Selec – PID500, PID330, DTC series
- Omron – E5CC, E5CN, E5EC (SSR output)
- Fuji Electric – PXF, PXR series
- Delta / Radix / Multispan – standard SSR pulse output
Recommended Panel-Mount SSRs
Wiring & Selection Guide
| PID Output | SSR pulse output, typically 12 VDC, 20 mA. |
|---|---|
| SSR Control Input | 4–32 VDC – matches PID output directly. |
| SSR Load Rating | 2× actual heater current for safe margin. |
| Heatsink | Mandatory above 10A; 1 °C/W or better. |
| Cycle Time | Set PID cycle time to 1–2 s for SSR output. |
Frequently Asked Questions
Can I connect a PID SSR output directly to the heater?
No. The PID SSR output is a low-power DC pulse – it must drive an external panel-mount SSR that carries the heater current.
What cycle time should I set on the PID?
For SSR-driven loads, set cycle time to 1–2 seconds for tight temperature control.
Which PID + SSR combination for a 25A heater?
Autonics TK4S or Selec PID500 + Omron G3NA-240B (40A) with a 1 °C/W heatsink.
Do you supply matched PID + SSR + heatsink kits?
Yes – share your heater current, control voltage and PID brand and we will quote the complete kit.