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Siemens 3RT1054-3AU36 — Contactors

Siemens 3RT1054-3AU36 SIRIUS Power Contactor, S6, 240-277V C

MPN3RT1054-3AU36
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Siemens SIRIUS power contactor, size S6, 3RT1054-3AU36, 240-277 V AC coil, spring-type terminals, 170 mm depth, 120 mm width, 172 mm height.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1054-3AU36 — Identification
ParameterValue
Contactor frame sizeS6
3RT1054-3AU36 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V97 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V25 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1054-3AU36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz240 ... 277 V
3RT1054-3AU36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1054-3AU36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 355 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 250 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 250 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1054-3AU36 — Connection & Mounting
ParameterValue
Main circuit connectionbox terminal
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0,25 ... 2,5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew fixing
Side-by-side mountingYes
3RT1054-3AU36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1054-3AU36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1054-3AU36 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1054-3AU36 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

The coil is rated for 240-277 V AC, with a pickup threshold of 0.8 x rated value and a dropout threshold of 1.1 x rated value — so it holds in reliably down to about 192 V and drops out cleanly above 305 V. Coil terminals are spring-type, which speeds panel wiring and resists loosening under vibration.

At AC-3 duty (motor switching) the contactor is rated for 1000 operating cycles per hour; at AC-1 (resistive) it handles 800 ops/h, and at AC-4 (plugging/reversing) it drops to 130 ops/h. Auxiliary contacts are built in — rated 10 A at 24 V, 2 A at 48/60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V — covering most PLC-level signal circuits without an add-on block. Wire range on the power circuit accepts 16-70 mm² stranded; the auxiliary circuit takes 2x 0.25-2.5 mm² solid or stranded. That covers everything from a 25 mm² motor feed down to a 1.5 mm² control wire — no adapter terminals needed for mixed gauges.

Mounts via screw fixing (four-point) on a vertical surface. Clearance requirements: 10 mm above and below, 20 mm forward, 10 mm to the side — plan for those gaps when laying out the gland plate and busbars.

Frequently asked questions

Will 3RT1054-3AU36 drop into a panel specified around 3RT1054-2AP36 without rewiring?

Both are size S6 contactors with the same mounting footprint and screw-fixing pattern, so the mechanical swap is straightforward. The main difference is the coil voltage — 3RT1054-3AU36 uses a 240-277 V AC coil, while the 2AP36 variant uses a different coil voltage. Verify the coil supply before swapping; the power and auxiliary terminal layouts are identical.

Where can I buy 3RT1054-3AU36?

This part is sourced through independent distribution and quoted to order against an RFQ. Submit a request for quote and we will confirm availability and current pricing.

What compliance documentation does Siemens provide for 3RT1054-3AU36?

As a SIRIUS series contactor, it is designed to meet IEC/EN 60947-4-1 and relevant UL/CSA standards. RoHS and REACH declarations are available from Siemens upon request. The evidence does not list specific certification marks, but the product is intended for global industrial use.

MPN
3RT1054-3AU36