DIN-Rail Mounting and Panel Fit
The 3RH2122-1BG40 mounts via screw or snap-on onto standard 35 mm DIN rail, with a 73 mm depth, 45 mm width, and 57.5 mm height that fits a Size S00 contactor footprint.
Switching Ratings and Duty Cycle
As an auxiliary contactor, this part switches control circuits, not motor loads — its AC rating is 10 A at 230 V and 3 A at 400 V, while DC switching is 10 A at 24 V and 1.2 A at 220 V.
Operating temperature range is -25 to +60 °C, with storage from -55 to +80 °C, and it withstands 10 % to 95 % relative humidity — suitable for unheated enclosures in temperate climates.