It snaps onto the contactor's front side — no tools, no wiring changes to the main circuit. The screw-type terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) conductors with core-end processing, or the AWG equivalents.
Switching capacity across voltages
Rated for AC-15 duty (solenoid and electromagnetic loads), the block carries 10 A at 24 V, 6 A at 125/230/250 V, 3 A at 400 V, and 0.26 A at 600 V. These are the switching currents at the respective control voltages — match your circuit's voltage to the row that governs the contactor coil or small solenoid you're piloting.
Reliability and environmental limits
Mechanical service life is 10 million switching cycles typical. Front-side protection is IP20, so the block belongs inside an enclosure, not exposed to washdown.
Snap-on mounting onto the 3RT1 contactor body. Dimensions: 44 mm wide, 38 mm tall, 51 mm deep. The cable entry is at the bottom — plan your wire routing accordingly; the block does not accept top-entry wiring.