What lands in the panel when this part number hits the BOM
The G3PA-220B-VD DC5-24 is Omron's panel-mount solid state relay built around a phototriac output stage and classified for heater control service — the SSR sits between a low-voltage command circuit and the AC load it switches, replacing the mechanical contactor that would otherwise wear through every zero-cross cycle. Load-side rating is 200 to 240 VAC at 50/60 Hz, so the relay belongs on the single-phase mains feed of a resistive or near-resistive heating element — outside that window the output stage is no longer in its specified envelope. Control-side rating is 5 to 24 VDC, which means a PLC DO, a temperature controller output, or a manual pilot circuit can drive the input directly across the listed range without an interposing relay.
Conduction loss and the heat the SSR must dump
Output ON-state voltage drop is rated at 1.6 V (RMS) maximum — that figure is the conduction-loss floor multiplied by the heater current, and the resulting wattage is what the heatsink (or panel chassis the relay mounts to) has to reject continuously while the load is energised.
Lifecycle posture and how the line gets sourced
Independent distribution quotes this code against an RFQ; lead time on the ledger is listed as usually ships in 1-10 working days, confirmed at quote time against the requested quantity.