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Siemens 3RT1056-6AR36-0UA0 — Contactors

Siemens 3RT1056-6AR36-0UA0 SIRIUS Power Contactor, Size S6,

MPN3RT1056-6AR36-0UA0
Active

Siemens SIRIUS power contactor, size S6, 24 VDC coil, screw-type terminals, 170 mm depth, 172 mm height, 120 mm width.

Siemens 3RT1056-6AR36-0UA0 datasheet (PDF)
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

3RT1056-6AR36-0UA0 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-6AR36-0UA0 — 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 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1056-6AR36-0UA0 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz440 ... 480 V
3RT1056-6AR36-0UA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1056-6AR36-0UA0 — 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)
3RT1056-6AR36-0UA0 — 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
3RT1056-6AR36-0UA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-6AR36-0UA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-6AR36-0UA0 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1056-6AR36-0UA0 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

Mechanical and mounting

The 3RT1056-6AR36-0UA0: The contactor measures 172 mm high by 120 mm wide by 170 mm deep, and mounts via screw fixing with a vertical mounting surface that is rotatable ±90° and tiltable ±22.5° to front and back. The enclosure clearance requirements are 10 mm upward, 10 mm downward, 20 mm forward, and 10 mm at the side — tight enough for a standard 600 mm deep panel with gland plate clearance.

Termination and conductor ranges

The main power circuit accepts stranded conductors from 25 to 120 mm². The coil and auxiliary terminals accept solid or stranded conductors: 2× (0.5 to 1.5 mm²), 2× (0.75 to 2.5 mm²), or max 2× (0.75 to 4 mm²). The auxiliary switch is present on this variant.

Coil and switching performance

The coil operates at 24 VDC with a rated holding current of 10 A at 24 V. The contactor is rated for up to 800 operations per hour at AC-1, 750/h at AC-3, and 300/h at AC-2 duty.

Frequently asked questions

Where can I buy 3RT1056-6AR36-0UA0 and get current pricing?

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

What is the closest functional second-source to 3RT1056-6AR36-0UA0?

The closest functional peer is 3RT1056-1AB36, which shares the same SIRIUS size S6 frame and 24 VDC coil but uses spring-cage (Cage Clamp) terminals instead of screw-type terminals. Panel wiring will differ at the coil and auxiliary connections, but the mounting footprint and main power lug positions are identical.

Will 3RT1056-6AR36-0UA0 drop into a panel specified around 3RT1056-1AB36 without rewiring?

The mounting footprint and main power conductor positions are the same between the screw-terminal and spring-cage variants, so the contactor will physically fit. However, the coil and auxiliary connections use different termination methods — screw terminals on this variant versus spring-cage on the -1AB36 — so those circuits will need re-termination if the panel was wired for spring-cage.

MPN
3RT1056-6AR36-0UA0