3RT1054-6AP36 is a SIRIUS S6 power contactor from Siemens — current production, no lifecycle drama. Coil is rated 220–240 V AC with an operating range of 0.8 to 1.1 times nominal. Mechanical life typical 10 million operations, so it'll outlast the panel refresh. Mounts via screw fixing on a vertical surface, rotatable ±90° and tiltable ±22.5° if you need to route cables awkwardly.
Wiring and mounting
Power terminals accept stranded wire from 25 to 120 mm² — one hole per phase, 9 mm diameter. The auxiliary and coil terminals are screw-type, taking 2x (0.5…1.5 mm²) solid or 2x (0.75…2.5 mm²) stranded, with a maximum of 2x (0.75…4 mm²). Auxiliary switch built in, so you skip an add-on block for basic status feedback. Enclosure dimensions 172 mm high × 120 mm wide × 170 mm deep. Keep 10 mm clearance upwards and downwards, 20 mm forward, 10 mm at the sides for arcing and cooling.