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Siemens 3RT1055-6XF46-0LA2 — Contactors

Siemens SIRIUS 3RT1055-6XF46-0LA2 Contactor, S6, 110 VDC Coi

MPN3RT1055-6XF46-0LA2
Active

Siemens SIRIUS contactor, size S6, 110 V DC coil, 170 mm depth, screw fixing, auxiliary switch included.

Siemens 3RT1055-6XF46-0LA2 datasheet (PDF)
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

3RT1055-6XF46-0LA2 — Identification
ParameterValue
Contactor frame sizeS6
3RT1055-6XF46-0LA2 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V132 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V55 kW
Rated value @ 230 V30 hp
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1055-6XF46-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1055-6XF46-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT1055-6XF46-0LA2 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 355 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 315 A (690 V, 100 kA), aM: 200 A (690 V, 50 kA), BS88: 315 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1055-6XF46-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
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
3RT1055-6XF46-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1055-6XF46-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1055-6XF46-0LA2 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm

Product details

It includes an auxiliary switch and is secured via screw fixing to a vertical mounting surface, with ±90° rotatability and ±22.5° tilt front-to-back.

The 110 V DC coil pull-in and drop-out characteristics are defined by a rated value of 110 V and an initial value of 0.7, meaning the contactor will pick up reliably at 77 V DC and hold in down to that level. Mechanical life is rated at 10,000,000 operations typical, and the operating temperature range spans -40 to +70 °C, so it is suited for unconditioned enclosures or outdoor-rated panels within that band. The contactor accepts solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and up to 2x (0.75 to 4 mm²) maximum. This covers standard motor feeder and control wiring sizes without needing lug adapters.

Dimensions are 172 mm height, 120 mm width, and 170 mm depth. A single 9 mm diameter hole is specified for fastening.

Frequently asked questions

What is the closest functional alternative to 3RT1055-6XF46-0LA2?

The peer 3RT1055-6LA06 is a size S6 contactor from the same SIRIUS family, but it uses a different coil voltage. Verify coil voltage compatibility before substituting — the 3RT1055-6XF46-0LA2 is a 110 V DC coil variant, while the 6LA06 uses a different coil rating. Mechanical footprint and mounting are identical, so no rewiring of the power circuit is needed if the coil supply matches.

What is the depth of this contactor?

The depth is 170 mm. This is the dimension from the mounting surface to the furthest projection, critical for enclosure depth selection.

What conductor sizes does the 3RT1055-6XF46-0LA2 accept?

It accepts solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and up to 2x (0.75 to 4 mm²) maximum per terminal.

Will 3RT1055-6XF46-0LA2 drop into a panel specified for 3RT1055-6LA06?

Yes, the mechanical footprint and mounting are identical — both are size S6 contactors with screw fixing. The only difference is the coil voltage; the 6XF46-0LA2 uses 110 V DC, while the 6LA06 uses a different coil rating. If the control circuit supplies 110 V DC, it is a direct mechanical swap with no rewiring of the power circuit.

MPN
3RT1055-6XF46-0LA2