AC load switching with a wide control range
The Autonics SRS1-B1202R-2 is a signal relay from the SRS1 series, designed for switching AC loads up to 2 A across a voltage range of 90 V to 240 VAC. The SPST-NO (1 Form A) circuit gives you a straightforward normally-open contact — when the coil is energized, the contact closes; when power is removed, it opens. This makes it a clean fit for on/off control of small AC loads like solenoid valves, indicator lamps, or contactor coils in a panel. The input side accepts 4 to 30 VDC, which covers common PLC digital outputs (typically 24 VDC) and lower-voltage logic from microcontrollers or sensors. You don't need a separate interface relay if your control signal sits in that range — the relay's coil is directly compatible.
Socketable plug-in mounting for quick swaps
The termination style is plug-in, and the mounting type is socketable. That means the relay body plugs into a matching socket (sold separately), so replacing a failed relay takes seconds — no desoldering, no board rework. If you're maintaining a panel with dozens of these, the socketable format cuts downtime to the time it takes to pull the old one and push in the new one. The package is a standard box format, which mates with Autonics' SRS1-series sockets. The base product number SRS1-B1202 tells you the relay family and the basic configuration; the -2 suffix indicates the specific variant (likely packaging or minor revision).
Active production — no obsolescence concern
The SRS1 series is a standard signal-relay line from Autonics, a established manufacturer in industrial automation components. No official second-source or pin-compatible alternative is recorded from other brands, but the socketable format means the socket itself is the interface — if a functional equivalent exists, it would need to share the same socket footprint.