It is rated for use with the S00, S0, S2, and S3 contactor frame sizes, which covers a broad range of motor starters and switching duties in a control panel.
The contact carries 6 A at 24 V and 6 A at 230 V, with the current dropping as voltage rises — 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V and 250 V, and 3 A at 400 V. These are the conventional thermal current (Ith) values, meaning the contact can handle that current continuously in a resistive circuit at the stated voltage. For motor or inductive loads, you derate from these figures. The rated operational current tells a different story: 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 0.5 A at 440 V, and 0.26 A at 600 V — these are the values for AC-15 (solenoid/contactor coil) duty, which is the real-world load this switch will see in a control circuit. The 6 kV rated surge voltage resistance means it can handle transients typical in industrial panels without flashover.
Snap-on mounting onto the front of the contactor — no tools needed. The 36 mm width, 47.7 mm depth, and 41.5 mm height mean it adds minimal footprint to the contactor assembly. Wire termination accepts 2 x (0.5... 2.5 mm²) solid or stranded, 2 x (0.5... 1.5 mm²) finely stranded with ferrule, or 2 x (20... 14) AWG.
Sourcing posture
As an active-production SIRIUS component, this auxiliary switch is sourced through standard Siemens distribution channels. No second-source or direct cross-reference is listed; the 3RT2 contactor family it mates with is the primary ecosystem.