SIRIUS S6 power contactor, 96-127 VAC coil
The Siemens 3RT1054-6NF36 is a SIRIUS power contactor in size S6, designed for switching motor loads in industrial control panels. The coil is rated for 96-127 VAC, with a pick-up threshold of 0.8 x rated value. Operating time is 80-90 ms on both AC and DC, and arcing time is 10-15 ms. The contactor includes an auxiliary switch and uses screw-type terminals for the magnet coil.
Switching frequency and duty ratings
Maximum switching rates vary by duty: 800 cycles/hour under AC-1 (resistive), 400 under AC-2 (slip-ring motors), 1000 under AC-3 (squirrel-cage motors), and 130 under AC-4 (plugging/inching) (-). AC-3e matches AC-3 at 1000 cycles/hour. The 10,000,000 typical mechanical life means this contactor is built for high-cycle applications like conveyor or pump panels where AC-3 is the dominant duty.
Mounting and wiring
Mounting is screw fixing with four 9 mm holes. The contactor can be mounted on a vertical surface, rotatable ±90° and tiltable ±22.5°. Clearance requirements: 10 mm upwards/downwards/side, 20 mm forwards. Main power terminals accept stranded wire 25-120 mm². Auxiliary/coil terminals accept solid or stranded 0.5-1.5 mm² (2x) or 0.75-2.5 mm² (2x), max 4 mm². Dimensions: 172 mm high, 120 mm wide, 170 mm deep.
Sourcing and fit note
The 3RT1054-6NF36 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. For a panel originally specified around the 3RT1054-2AP36 (a sibling with a different coil voltage), the mechanical footprint and wiring scheme are identical — both are size S6 with screw fixing and the same clearance requirements — so no rewiring is needed for the mounting base; only the coil supply must match the 96-127 VAC rating of this variant.