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Siemens 3RT1054-6LA06 — Contactors

Siemens SIRIUS 3RT1054-6LA06 Power Contactor, S6 Size, 170 m

MPN3RT1054-6LA06
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Siemens SIRIUS power contactor, size S6, 3RT1054-6LA06, screw-type coil terminals, 170 mm depth, 120 mm width, 172 mm height.

$162.56Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1054-6LA06 — Identification
ParameterValue
Contactor frame sizeS6
3RT1054-6LA06 — 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
3RT1054-6LA06 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1054-6LA06 — 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)
3RT1054-6LA06 — Connection & Mounting
ParameterValue
Main circuit connectionConnection bar
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, solid or stranded2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew fixing
Side-by-side mountingYes
3RT1054-6LA06 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1054-6LA06 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1054-6LA06 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1054-6LA06 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

The AC-4 rating of 130 ops/h covers plugging and inching applications where the motor is reversed or jogged under load. Mounting is via screw fixing with a vertical mounting surface that can be rotated ±90° or tilted ±22.5° front-to-back — useful when fitting into tight or odd-angled panel layouts. The contactor dimensions are 170 mm deep, 120 mm wide, and 172 mm high, so plan your enclosure depth accordingly.

Power cable termination accepts stranded conductors from 25 mm² up to 120 mm² — big enough for the main feed on a 100 A+ motor circuit. The coil uses screw-type terminals with a solid/stranded range of 0.5–1.5 mm² (two conductors) or 0.75–2.5 mm² (two conductors), max 4 mm². Auxiliary switch is present, which simplifies adding status feedback or interlocking without a separate block. The contactor also carries a mechanical life of 10 million operations typical, so it will outlast most panel refreshes.

Switching performance

The coil draws 10 A at 24 V rated value and derates at higher voltages: 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V.

Frequently asked questions

What is the depth of 3RT1054-6LA06?

The depth is 170 mm. Combined with a width of 120 mm and height of 172 mm, it fits a standard S6 contactor footprint.

What wire sizes does the coil terminal accept?

The screw-type coil terminals accept solid or stranded conductors: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or max 2x (0.75–4 mm²).

Where can I buy 3RT1054-6LA06?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer.

Will 3RT1054-6LA06 drop into a panel specified around 3RT1055-6QF35?

Both are size S6 contactors with the same physical footprint and mounting pattern, so mechanical fit is identical. However, the coil voltage and auxiliary contact configuration may differ — verify the coil rating and auxiliary wiring before swapping.

MPN
3RT1054-6LA06