It adds one instantaneous N/O contact for feedback, interlocking, or control logic without taking up extra DIN-rail space — it rides directly on the contactor body.
The AC-15 rating at 690 V (1 A) covers solenoid and contactor coil switching in higher-voltage control circuits.
This is a mirror contact per IEC 60947-4-1 when paired with a 3RT1 contactor, meaning the N/O contact's position mechanically mirrors the main contact position — critical for safety circuits where you need positive confirmation that the main contacts have opened. Substance prohibitance date of July 1, 2006 aligns with RoHS compliance. Front protection is IP20 — finger-safe but not washdown-rated, so mount it inside an enclosure.
Snaps onto the front of S0 contactors — no tools needed, no DIN-rail slot consumed. Wiring accepts 2x (0.5 to 2.5 mm²) solid or stranded, or 2x (20 to 14 AWG). Finely stranded with ferrule: 2x (0.5 to 1.5 mm²). Strip length is standard for the SIRIUS terminal style. Dimensions are compact: 10 mm wide, 38 mm tall, 51 mm deep — it adds negligible footprint to the contactor assembly.