It carries a 10 A rated current at 24 V and switches up to 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V — covering the common control voltages across 50/60 Hz systems. The 2 NO configuration (no NC, no delayed or leading/lagging contacts) makes it a straightforward pick for adding a single set of auxiliary contacts to a contactor or for standalone interposing relay duty.
The 45 mm width and 57.5 mm height fit the S00 footprint shared across the SIRIUS contactor family, so it aligns mechanically with a 3RT2 contactor of the same frame.
Electrical ratings and contact reliability
Rated surge voltage resistance is 6 kV, which aligns with basic insulation coordination for 400 VAC control circuits in pollution degree 3 environments. The auxiliary switch block is field-extendable (Product Extension Auxiliary Switch = Yes), so additional contact blocks can be ganged on if the 2 NO count needs to grow later.