It mounts via screw or snap-on onto a standard 35 mm DIN rail, with a 73 mm depth, 45 mm width, and 57.5 mm height — a compact footprint for control-panel integration where auxiliary switching is needed alongside a main contactor or motor starter.
Rated switching capacity and voltage range
The 3RH2122-1AU00 is rated for switching at 24 V (10 A), 60 V (4.7 A), 110 V (3 A), 220 V (1.2 A), 230 V (10 A), 400 V (3 A), 440 V (0.5 A), 500 V (2 A), 600 V (0.26 A), and 690 V (1 A), with a maximum rated voltage of 240 V at 50/60 Hz. These ratings cover the typical control-circuit voltages found in industrial panels — 24 VDC for PLC outputs, 110–230 VAC for pilot devices, and 400–690 V for higher-voltage auxiliary circuits. The 10 A rating at 24 V and 230 V means it can handle moderate pilot-duty loads without an intermediate relay.
Mounting and environmental tolerances
Operating temperature range is -25 to +60 °C, storage -55 to +80 °C, with a pollution degree of 3 (conductive pollution typical in industrial control panels).
The part carries a substance prohibition date of 10/01/2009, indicating RoHS compliance from that date forward. Minimum relative humidity is 10 %. The SIRIUS series typically provides IEC, UL, CSA, and CE documentation on request — confirm specific certification marks needed for your jurisdiction at quote time.