It provides 3 normally-open and 1 normally-closed contact set (3 NO + 1 NC), wired via spring-loaded terminals. The snap-on mounting means it clips directly onto the relay without tools — a common panel integration step for adding feedback or interlock signals to a motor starter or control circuit.
At 24 V it handles 6 A; at 230 V it also handles 6 A; at 400 V it drops to 3 A. For DC switching, the 24 V rated value is 10 A, while at 220 V it drops to 1.2 A. The AC-15 rating at 690 V is 1 A — that's the inductive load rating for solenoid or contactor coils at high voltage. The insulation voltage is 690 V AC at pollution degree 3, with a surge voltage resistance of 6 kV, so it's suitable for 400/480 V panels with decent clearance.
Panel Integration Detail
The block measures 36 mm wide, 47.7 mm deep, 41.5 mm high — a compact front-mount addition that fits within the relay envelope. The spring-loaded terminals accept 2x 0.5–2.5 mm² stranded without ferrules, or 2x 0.5–1.5 mm² with ferrules. AWG equivalent is 2x 20–14.
Contact Reliability and Mechanical Life
Mechanical service life is 10 million switching cycles typical, so this block will outlast most contactor relays it mounts on.