CR-M interface relay with gold contacts
The ABB 1SVR405618R2100 is a CR-M series interface relay — a 4PDT (four-pole double-throw) form with a 120 VAC coil and a 6 A switching rating at 250 VAC. The gold-plated contacts handle low-level signal switching without the oxidation issues that plague tin-plated contacts in dry-circuit applications.
Socket-mount form factor and 14-blade base
Mounts into a standard 14-blade socket — the relay body snaps in and the blade pattern matches the CR-M series socket footprint. The LED indication across the coil terminals gives a quick visual on coil power without a meter.
Switching capacity and coil draw
Rated 6 A at 250 VAC per pole — this covers most general-purpose pilot duty, solenoid valve, and small motor contactor coil loads inside a panel. The 120 VAC coil draws roughly 1.5 VA typical, well within a standard 120 V control transformer's capacity.