The 3RH7140-1AB00 is a SIRIUS contactor relay from Siemens, Size S00, with 4 normally open (NO) auxiliary contacts — identified by the switching-element code 40 E.
Switching Capacity & Contact Ratings
The auxiliary contacts are rated for 6 A at 24 V, 230 V, and 400 V AC; 1 A at 110 V and 690 V; and 0.3 A at 220 V. These ratings cover the typical control-voltage levels found in industrial panels — 24 V for PLC-driven circuits, 230/400 V for motor contactor coils, and 690 V for higher-voltage auxiliary circuits.
Mounting & Panel Fit
The 45 mm width and 72 mm depth fit the S00 footprint, common in compact control panels. Installation altitude is limited to 2 000 m above sea level.
Environmental & Protection
Operating temperature range is -10 to +55 °C; storage from -25 to +70 °C. Shock resistance: 15g / 5 ms sine pulse, 10g / 5 ms rectangular impulse.