It is rated for AC-3 duty at 4 kW on a 690 V 50/60 Hz supply, meaning it can switch a 3-phase induction motor of that power under normal starting conditions — the most common motor-switching duty class per IEC 60947-4-1. For AC-4 duty (plugging, inching, reversing) at 400 V it carries 6.5 A, and for AC-12 (resistive loads like heaters) it handles 10 A maximum. DC switching capability is present: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — useful for DC brake coils or small DC motor circuits.
Main circuit terminals accept 2x (0.25 to 2.5 mm²) solid or stranded wire, or 2x (24 to 14 AWG).
Environmental and coordination
It is a genuine Siemens SIRIUS product, same part regardless of which authorized region it ships from — a standard BOM line item, not a gray-market scavenge. Source to RFQ for pricing and lead time; this is an active catalog item, not a last-time-buy situation.