The Siemens 3RH1131-1AR60 is a SIRIUS auxiliary contactor in Size S00, designed for control-circuit switching in motor starter and contactor assemblies. It carries 3 normally-open and 1 normally-closed instantaneous contacts, rated for 10 A at 24 V and 6 A at 230 V, with a rated insulation voltage of 400 V at 50 Hz and 400–440 V at 60 Hz. The 6 kV rated surge voltage resistance gives it adequate clearance for 400 V line applications without external suppression.
Mounting and wiring
Fastens via screw and snap-on mounting onto a DIN rail, occupying a 45 mm wide footprint with 57.5 mm height and 72 mm depth. The mounting position allows ±180° rotation on a vertical surface and ±22.5° forward/backward tilt — useful when panel layout forces an unconventional orientation. Terminals accept solid conductors: 2× (0.5–1.5 mm²), 2× (0.75–2.5 mm²), or 2× 4 mm², covering the common control-wiring gauges for a Size S00 contactor stack.
Contact ratings and switching capability
The 3 normally-open and 1 normally-closed contacts are rated for AC switching at 50/60 Hz: 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. DC ratings are lower: 1 A at 110 V and 0.27 A at 220 V. The contact reliability spec — one incorrect switching per 100 million operations at 17 V, 1 mA — confirms it handles low-energy PLC-level signals without stiction. Mechanical life is 30 million operations typical, which aligns with the S00 frame's duty cycle in high-cycling applications like conveyor interlocks.
Environmental and compliance
Rated for operation from -25 °C to +60 °C, storage and transport from -55 °C to +80 °C. Degree of pollution 3 means it tolerates conductive dust in industrial enclosures. IP20 on the front protects against solid objects larger than 12 mm — standard for a panel-mounted contactor. Shock resistance: 10g at 5 ms and 5g at 10 ms. The lifecycle stage is current production; the part carries RoHS compliance with a substance prohibition date of July 1, 2006.