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Siemens 3RT1056-6QP35 — Contactors

Siemens 3RT1056-6QP35 SIRIUS Power Contactor, Size S6, 200-2

MPN3RT1056-6QP35

Siemens SIRIUS power contactor, size S6, 3RT1056-6QP35, 200-277 V AC/DC coil, screw-type terminals, 170 mm depth, 140 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

3RT1056-6QP35 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-6QP35 — 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 V1 A
Rated value @ 230 V30 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1056-6QP35 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.5
Rated value @ 50 Hz200 ... 277 V
3RT1056-6QP35 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1056-6QP35 — 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)
3RT1056-6QP35 — 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
3RT1056-6QP35 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-6QP35 — Environmental
ParameterValue
Operating temperature range-25 ... +55 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-6QP35 — Mechanical
ParameterValue
Width140 mm
Height172 mm
Depth170 mm
3RT1056-6QP35 — Specifications
ParameterValue
At AC80 ... 90 ms

Product details

It carries a 200-277 V AC/DC coil with screw-type terminals, and the mounting position is flexible — vertical surface with ±90° rotation and ±22.5° tilt front/back. Dimensions are 172 mm high, 140 mm wide, and 170 mm deep — that depth matters when you're laying out a panel with limited enclosure clearance. The contactor is screw-fixed, not DIN-rail snap-on, so plan for drilled mounting holes (9 mm diameter, single hole per fixing point). Operating temperature range is -25 to +55 °C, storage from -55 to +80 °C. Mechanical life is typical 10,000,000 operations; switching frequencies vary by duty: AC-1 at 800 cycles/h, AC-3 at 750 cycles/h, AC-4 at 130 cycles/h.

Main power circuit accepts stranded conductors from 25 to 120 mm². The auxiliary switch terminals handle solid wire: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or max 2x (0.75–4 mm²). Coil terminals are screw-type, same as the main terminals. Clearances: 10 mm upwards, 20 mm forwards, 10 mm downwards, 10 mm at the side — keep those for arcing and heat dissipation. Arcing time is 10–15 ms; coil pick-up and drop-out both run 80–90 ms (AC and DC).

Frequently asked questions

What is the depth of 3RT1056-6QP35?

Depth is 170 mm, width 140 mm, height 172 mm.

What wire sizes does the auxiliary switch accept?

Solid wire: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or max 2x (0.75–4 mm²).

Where can I buy 3RT1056-6QP35?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time.

MPN
3RT1056-6QP35