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Siemens 3RT1055-2XF46-0LA2 — Contactors

Siemens 3RT1055-2XF46-0LA2 SIRIUS Contactor, Size S6, 110 VD

MPN3RT1055-2XF46-0LA2
Active

Siemens SIRIUS, Contactor, Size S6, 3RT1055-2XF46-0LA2, 110 VDC coil, screw fixing, 170 mm depth, 120 mm width, 172 mm height.

Siemens 3RT1055-2XF46-0LA2 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1055-2XF46-0LA2 — Identification
ParameterValue
Contactor frame sizeS6
3RT1055-2XF46-0LA2 — 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
3RT1055-2XF46-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1055-2XF46-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT1055-2XF46-0LA2 — 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)
3RT1055-2XF46-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
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
3RT1055-2XF46-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1055-2XF46-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1055-2XF46-0LA2 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm

Product details

SIRIUS Size S6 Contactor with 110 VDC Coil

Screw fixing secures it to a vertical mounting surface, rotatable ±90° and tiltable ±22.5° front-to-back. Rated switching frequencies vary by duty class: AC-1 at 800 cycles/h, AC-3 at 750 cycles/h, and AC-4 at 130 cycles/h — the AC-3e rating also holds at 750 cycles/h. For DC loads, DC-1 allows 400 cycles/h while DC-3 and DC-5 are each rated at 350 cycles/h. The auxiliary switch block is factory-fitted and rated for 6 A at 24 VDC, 1 A at 110 VDC, and 0.9 A at 125 VDC — confirm your control-circuit voltage against these curves to avoid contact welding on DC inductive loads.

Mounting dimensions: 172 mm height, 120 mm width, 170 mm depth. A single 9 mm diameter hole is provided for screw fixing. Solid or stranded wire accepted: 2x (0.25 to 2.5 mm²) per terminal.

Frequently asked questions

What is the closest functional second-source for 3RT1055-2XF46-0LA2?

Peer MPNs include 3RT1055-1AB36, 3RT1055-6QF35, and 3RT1056-1AB36 — all SIRIUS Size S6 contactors. The 3RT1055-1AB36 shares the same frame size and screw-fixing method but uses an AC coil; verify coil voltage compatibility before substituting.

What is 3RT1055-2XF46-0LA2's listed depth?

The depth is 170 mm, with a height of 172 mm and width of 120 mm.

What is the solid wire capacity for 3RT1055-2XF46-0LA2?

The terminals accept 2x (0.25 to 2.5 mm²) solid or stranded wire.

Will 3RT1055-2XF46-0LA2 drop into a panel specified around 3RT1055-1AB36 without rewiring?

Both are Size S6 with screw fixing and identical mounting dimensions (172 x 120 x 170 mm), so the mechanical fit is the same. The critical difference is the coil: 3RT1055-2XF46-0LA2 uses a 110 VDC coil, while 3RT1055-1AB36 uses an AC coil — rewire the control circuit accordingly.

MPN
3RT1055-2XF46-0LA2