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Siemens 3RT1056-7AB36-0SF1 — Contactors

Siemens SIRIUS 3RT1056-7AB36-0SF1 Power Contactor, Size S6,

MPN3RT1056-7AB36-0SF1
Active

Siemens SIRIUS power contactor, Size S6, 3RT1056-7AB36-0SF1, 170 mm depth, 172 mm height, 120 mm width, spring-type coil terminals, screw fixing.

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

3RT1056-7AB36-0SF1 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-7AB36-0SF1 — 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
3RT1056-7AB36-0SF1 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz23 ... 26 V
3RT1056-7AB36-0SF1 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1056-7AB36-0SF1 — 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)
3RT1056-7AB36-0SF1 — Connection & Mounting
ParameterValue
Main circuit connectionbox terminal
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
3RT1056-7AB36-0SF1 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-7AB36-0SF1 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-7AB36-0SF1 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1056-7AB36-0SF1 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

SIRIUS Size S6 Power Contactor — 3RT1056-7AB36-0SF1

The coil is rated 23-26 V and terminates via spring-type terminals, while the main power circuit accepts stranded conductors from 16 to 70 mm². Auxiliary/control wiring uses solid or stranded 2x (0.25-2.5 mm²) conductors. Mechanical endurance is rated at 10,000,000 operating cycles typical, with switching frequencies varying by duty: 800 cycles/hour at AC-1, 750 at AC-3 and AC-3e, 300 at AC-2, and 130 at AC-4.

Dimensions and Clearances for Panel Integration

The contactor measures 172 mm high, 120 mm wide, and 170 mm deep. The auxiliary switch is included as standard.

The auxiliary contacts are rated for 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V — covering typical control circuit voltages.

Frequently asked questions

Where can I buy 3RT1056-7AB36-0SF1 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ to confirm current availability and pricing.

What is the depth of 3RT1056-7AB36-0SF1?

The depth is 170 mm.

What conductor sizes does the main circuit accept?

The main power terminals accept stranded conductors from 16 to 70 mm².

What is the coil voltage rating?

The coil is rated 23-26 V.

What compliance documentation is available?

As a Siemens SIRIUS product, standard documentation includes RoHS, REACH, and applicable IEC/UL certifications. Specific declarations are available upon request.

MPN
3RT1056-7AB36-0SF1