SIRIUS Size S6 Power Contactor — 3RT1054-2AT36
The Siemens 3RT1054-2AT36 is a SIRIUS power contactor in the Size S6 frame, designed for switching motor loads and resistive circuits in control panels. It mounts via screw fixing with a vertical mounting surface, rotatable ±90° and tiltable ±22.5° front-to-back. The coil connection uses spring-type terminals; main power wiring accepts stranded cable from 25 to 120 mm². Rated operating temperature during operation spans -25 to +60 °C; storage range is -55 to +80 °C. Mechanical life is typical 10,000,000 operations. Switching frequency depends on duty: AC-1 (resistive) max 800 ops/h, AC-2 400 ops/h, AC-3 (motor start) 1000 ops/h, AC-4 (plugging/inching) 130 ops/h.
Auxiliary Contact Ratings and Wiring
The auxiliary switch is rated for switching at various control voltages: 10 A at 24 V rated value, 2 A at 48 V, 2 A at 60 V, and 1 A at 110 V. These are the contact ratings under the respective DC or AC conditions — useful for sizing the control circuit, not the main power path. Wire the auxiliary via the spring-type terminals; the solid or stranded range for these is 2x (0.25 to 2.5 mm²).
Integration and Clearance
Physical envelope: 172 mm height, 120 mm width, 170 mm depth. Mounting uses four 9 mm diameter holes on a screw-fixing pattern. Minimum clearance around the contactor: 10 mm upwards, 10 mm downwards, 10 mm at the side, and 20 mm forwards. These clearances matter for heat dissipation and arc-flash containment — don't crowd the enclosure. Arcing time is 10 to 15 ms; operate time is 40 to 60 ms for both AC and DC coil supplies.
Lifecycle and Sourcing
The lifecycle stage for 3RT1054-2AT36 is listed as current. This part is sourced to order against an RFQ through independent distribution channels. For the most current availability and pricing, submit a quote request — the supply posture is confirmed at that time. No official successor is listed in the evidence; if a cross-reference is needed, the closest functional peer in the SIRIUS family is the 3RT1055-6QF35, which carries a different coil voltage and terminal arrangement — verify fit before substituting.