The Siemens 3RH1131-2JB40-ZW98 is a SIRIUS coupling relay — a Size S00 contactor-style device built to switch auxiliary circuits in control panels. It carries three normally-open instantaneous contacts rated 10 A at 24 V, with lower ratings at higher voltages (6 A at 230 V, 3 A at 400 V, 1 A at 690 V).
The 45 mm wide, 60 mm tall, 73 mm deep footprint is standard for the SIRIUS S00 frame. The IP20 front protection means it's suited for enclosed panels where no water spray reaches the terminals.
Contact ratings and switching reliability
The three NO contacts are rated for switching at multiple voltage levels: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V.
Shock resistance is 10g at 5 ms and 5g at 10 ms. RoHS compliance date is July 1, 2006.