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Siemens 3RT1056-6AM36 — Contactors

Siemens 3RT1056-6AM36 SIRIUS Power Contactor, S6, 200-220V C

MPN3RT1056-6AM36
Active

Siemens SIRIUS power contactor, size S6, 3RT1056-6AM36, 200-220 V AC coil, screw-type terminals, 170 mm depth, 172 mm height, 120 mm width.

Siemens 3RT1056-6AM36 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1056-6AM36 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-6AM36 — 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
3RT1056-6AM36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz200 ... 220 V
3RT1056-6AM36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1056-6AM36 — 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)
3RT1056-6AM36 — 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
3RT1056-6AM36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-6AM36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-6AM36 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1056-6AM36 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

Its 200-220 V AC coil with screw-type terminals suits retrofit replacements where the existing coil voltage is fixed, and the 170 mm depth fits standard enclosure depths without crowding gland plates or busbars.

Duty ratings and switching capacity

This contactor is rated for AC-3 motor switching at up to 750 operations per hour, with a maximum of 800 1/h in AC-1 resistive duty and 130 1/h in the punishing AC-4 reversing/plugging category. The 10-15 ms arcing time and 40-60 ms operate times (both AC and DC) are typical for this frame class — the arcing figure matters for coordination with upstream short-circuit protection, especially in a panel with tight selectivity margins.

Power wiring and auxiliary connections

Main power terminals accept stranded cable from 25 mm² up to 120 mm², sized for the full S6 current rating. The auxiliary switch block (screw-type terminals) handles solid or stranded conductors: 2x 0.5-1.5 mm², 2x 0.75-2.5 mm², or max 2x 0.75-4 mm². Mounting is screw-fix with a vertical surface — the contactor can be rotated ±90° or tilted ±22.5° front/back, giving panel builders flexibility on busbar orientation.

Frequently asked questions

What is the closest functional second-source for 3RT1056-6AM36?

The 3RT1056-1AB36 is a close functional peer within the same SIRIUS S6 frame, but verify the coil voltage — the 1AB36 variant uses a different coil rating. The 3RT1056-6AM36 carries a 200-220 V AC coil; if your panel voltage matches, the 1AB36 may drop in without rewiring, but always confirm the auxiliary contact configuration on your specific build.

Will 3RT1056-6AM36 drop into a panel that was specified around 3RT1056-1AB36 without rewiring?

Yes, the S6 frame size and mounting footprint are identical across the 3RT1056 family, so the 3RT1056-6AM36 will physically replace a 3RT1056-1AB36 in the same panel. The main power wiring (25-120 mm² stranded) and auxiliary terminal capacities are the same. The only difference to check is the coil voltage: the 6AM36 uses 200-220 V AC, while the 1AB36 may differ — confirm your control voltage before swapping.

MPN
3RT1056-6AM36