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Siemens 3RT1056-6XF46-0LA2 — Contactors

Siemens 3RT1056-6XF46-0LA2 SIRIUS Power Contactor, 110 V DC

MPN3RT1056-6XF46-0LA2
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Siemens SIRIUS power contactor, size S6, 110 V DC coil, screw fixing, auxiliary switch, 172 x 120 x 170 mm.

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

3RT1056-6XF46-0LA2 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-6XF46-0LA2 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V160 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V65 kW
Rated value @ 230 V230 hp
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1056-6XF46-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1056-6XF46-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT1056-6XF46-0LA2 — 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, 100 kA), BS88: 315 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1056-6XF46-0LA2 — 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
3RT1056-6XF46-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-6XF46-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-6XF46-0LA2 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm

Product details

SIRIUS 3RT1056-6XF46-0LA2 — Power Contactor, 110 V DC Coil, Size S6

Duty Ratings and Switching Frequency

This contactor is rated for multiple duty classes, each with a maximum switching frequency. In AC-1 (resistive) duty it can handle up to 800 operations per hour; in AC-3 (squirrel-cage motor starting) it's rated at 750 operations per hour; in the tougher AC-4 (plugging/reversing/inching) duty it drops to 130 operations per hour. For DC switching, DC-1 allows 400 ops/h, while DC-3 and DC-5 both allow 350 ops/h.

Auxiliary Contact DC Breaking Capacity

The auxiliary switch on this contactor has documented DC breaking capacities at several control voltages: 6 A at 24 V DC, 2 A at 48 V DC, 2 A at 60 V DC, 1 A at 110 V DC, and 0.9 A at 125 V DC. If you are using the auxiliary contact to switch a DC pilot load or a PLC input, stay within these limits — a 24 V DC load up to 6 A is fine, but at 110 V DC the same contact is only rated for 1 A.

Mounting, Wiring, and Clearances

The contactor is fastened by screw fixing through a single 9 mm diameter hole. Mounting position is flexible: it can be mounted on a vertical surface with ±90° rotation, and tilted ±22.5° forward or backward. Dimensions are 172 mm high, 120 mm wide, and 170 mm deep. The terminal blocks accept solid or stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²). That covers most panel wiring sizes — if you are landing 4 mm² conductors, you can double them up per terminal.

Frequently asked questions

What is the coil voltage on 3RT1056-6XF46-0LA2?

The coil is rated 110 V DC.

What wire sizes does the 3RT1056-6XF46-0LA2 accept?

The terminals accept solid or stranded wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²).

MPN
3RT1056-6XF46-0LA2