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Siemens 3RT1056-2AP36 — Contactors

Siemens 3RT1056-2AP36 SIRIUS Power Contactor, Size S6, 220-2

MPN3RT1056-2AP36
Active

Siemens SIRIUS power contactor, Size S6, 3RT1056-2AP36, 220-240 V AC coil, screw fixing, 170 mm depth, 172 mm height, 120 mm width.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1056-2AP36 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-2AP36 — 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
3RT1056-2AP36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz220 ... 240 V
3RT1056-2AP36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1056-2AP36 — 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)
3RT1056-2AP36 — Connection & Mounting
ParameterValue
Main circuit connectionConnection bar
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
3RT1056-2AP36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-2AP36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-2AP36 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1056-2AP36 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

SIRIUS Size S6 Power Contactor — 3RT1056-2AP36

It carries a 220-240 V AC coil and is fastened via screw fixing to a vertical mounting surface, with ±90° rotatability and ±22.5° tilt front-to-back per the mounting position spec. Rated for AC-3 duty at 750 operating cycles per hour maximum, this contactor handles the frequent start-stop demands of conveyor, pump, and fan applications. The AC-4 rating of 130 ops/h covers plugging and inching duty where the motor is reversed or jogged under load. The main power circuit accepts stranded cable from 25 to 120 mm², while the coil connection uses spring-type terminals for 2x 0.25-2.5 mm² solid or stranded wire. An auxiliary switch is integrated, rated at 10 A at 24 V, 2 A at 48 V, and 1 A at 110 V.

The 3RT1056-2AP36 is in its current lifecycle stage per the manufacturer record.

Integration and Clearance

The single 9 mm diameter mounting hole accommodates standard M8 hardware for screw fixing to a backplate or sub-panel. Dimensions are 170 mm deep, 172 mm high, and 120 mm wide. The coil operates within 40-60 ms on both AC and DC supplies, with an arcing time of 10-15 ms. Typical mechanical life is 10,000,000 operations. The contactor is rated for AC-1 at 800 ops/h, AC-2 at 300 ops/h, AC-3 at 750 ops/h, and AC-3e at 750 ops/h maximum.

Frequently asked questions

Where can I buy the 3RT1056-2AP36 and how is it quoted?

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

What is the depth of the 3RT1056-2AP36?

The listed depth is 170 mm, with a height of 172 mm and width of 120 mm. Minimum forward clearance from the mounting surface is 20 mm.

What cable sizes does the 3RT1056-2AP36 accept?

The main power terminals accept stranded cable from 25 to 120 mm². The coil connection uses spring-type terminals accepting 2x 0.25 to 2.5 mm² solid or stranded wire.

What compliance documentation is available for the 3RT1056-2AP36?

As a Siemens SIRIUS product, the 3RT1056-2AP36 is manufactured to IEC/EN 60947-4-1 standards. Compliance documentation including RoHS, REACH, and UL/CSA certifications is typically available from the manufacturer upon request.

MPN
3RT1056-2AP36