Panel fit for the S00 frame
The 3RH2122-2BF40: At 45 mm wide and 73 mm deep, this S00-frame auxiliary contactor occupies a single 45 mm DIN-rail slot — no more, no less. Mounting is screw-and-snap onto standard 35 mm rail.
Contact ratings across the voltage range
The 2 instantaneous contacts carry rated operational currents that drop as voltage rises. At 24 V DC the contacts are rated 10 A; at 110 V DC it's 3 A; at 600 V DC the rating falls to 0.26 A. The AC switching rate is 10 000 operations per hour, which sets the maximum cycling frequency for applications like rapid reversing or jogging. Mechanical service life is 30 000 000 operations typical — this is the wear-out limit of the mechanism, not the contacts under load. Actual electrical life depends on the switched current and voltage; for high-current DC switching expect far fewer cycles.
Closing power and holding power are both 4 W at DC, meaning the coil draws about 36 mA steady-state at 110 V.
The minimum relative humidity is 10 % — this matters for dry-climate installations where static discharge risk is higher. The substance prohibitance date of 10/01/2009 marks RoHS compliance — the contactor contains no restricted substances above the threshold as of that date.