3-Phase SSR for Heater Control
The Omron G3PE-235B-3N is a 3-phase solid state relay designed specifically for heater control applications, carrying a 35 A load current at 40 °C across a 100 to 240 VAC output range. The input accepts 12 to 24 VDC (9.6 to 30 VDC operating range) and draws 10 mA max at 24 VDC, with a guaranteed operate voltage of 9.6 VDC max and release at 1 VDC min. This means the relay switches cleanly on a standard 24 VDC PLC output without needing an interposing relay — the 10 mA draw is well within the typical 0.5 A per-channel limit of most digital output cards.
The zero-cross function means the SSR switches on at the AC voltage zero point, minimizing inrush and electrical noise — critical when controlling heaters near sensitive PLC or instrumentation wiring in the same enclosure. The phototriac isolation provides optical separation between the 24 VDC control side and the 100-240 VAC power side, which simplifies panel layout: you can run the DC control wiring alongside the AC power wiring without special segregation, as long as basic wireway separation is maintained.
For volume purchases or blanket orders, the mature lifecycle status supports multi-year supply commitments without obsolescence risk.