Integrator's spec recap
The Omron G2R-1-SND DC12(S) is a G2RS-series general-purpose relay with a 12V DC coil and a single-pole double-throw (SPDT) contact set. The contacts are rated 10 A at 250 V AC and 10 A at 30 V DC — a symmetrical 10 A resistive rating that covers both mains AC and low-voltage DC loads without derating. The LED indicator across the coil terminals gives a quick visual on coil health; no push-to-test button is fitted on this variant.
What the ratings mean for fit
The 10 A contact rating at 250 V AC means this relay switches resistive loads up to 2500 VA — enough for a contactor coil, a solenoid valve, or a small motor starter pilot circuit. The same 10 A at 30 V DC covers low-voltage control loops and DC-powered indicators without a separate derating curve for DC inductive loads. Dielectric strength is 5,000 V AC between coil and contacts, so it isolates the 12V DC control side from the switched mains side cleanly — no arc-over risk in a panel with mixed voltages. Electrical operating durability is listed at 100,000 cycles; mechanical durability reaches 10,000,000 operations. For a relay that will see continuous cycling in a PLC output or timer circuit, the 100k electrical figure is the practical limit — after that, contact wear from breaking load current sets in. The 10M mechanical figure is useful for life-of-panel planning: the armature and spring assembly outlast the contacts by two orders of magnitude.
Deployment context
This is a 5-pin PCB-mount relay — no socket, no DIN-rail clip. The pins are on a standard 0.2-inch grid, so it drops into a PCB header or a pre-drilled panel board. The LED indicator and the 12V DC coil make it a natural fit for a 12V DC control bus in a small PLC cabinet or a building-automation controller. No push-to-test button means it is not intended for manual troubleshooting on the rail; you test it by energising the coil from the circuit.