It snaps onto the contactor via the standard DIN-rail mounting method, occupying a 36.5 mm width and 46 mm depth on the rail. Spring-loaded terminals accept 2x (0.5... 1.5 mm²) with ferrules or 2x (0.5... 2.5 mm²) solid, or 2x (20... 14) AWG — no screwdriver torque needed, which speeds panel wiring.
The contacts carry a maximum of 10 A, but the real-world rating depends on the voltage and load type. At 24 V the rated operational current is 10 A; at 230 V AC it's 6 A; at 400 V it drops to 3 A. For DC switching, the 24 V DC rating is 6 A, and at 110 V DC it's 1 A — the arc extinction limits current as voltage rises.
Multi-unit packaging of 60 pieces is the standard delivery unit for this variant. If your design is still in development, the 3RH2 successor should be evaluated for drop-in compatibility.
Snap-on mounting onto 35 mm DIN rail per EN 50022, size S00 footprint — the block adds 36.5 mm to the contactor width and 46 mm depth from the rail. Mechanical service life is 10 million switching cycles typical, which matches the base contactor's auxiliary block endurance.