Skip to main content
Log in
Siemens 3RT1056-6AB36-3PA0 — Contactors

Siemens 3RT1056-6AB36-3PA0 SIRIUS S6 Contactor, 23-26V Coil

MPN3RT1056-6AB36-3PA0
Active

Siemens SIRIUS power contactor, size S6, order 3RT1056-6AB36-3PA0, 23-26 V DC coil, integrated auxiliary switch.

Siemens 3RT1056-6AB36-3PA0 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1056-6AB36-3PA0 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-6AB36-3PA0 — 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
3RT1056-6AB36-3PA0 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz23 ... 26 V
3RT1056-6AB36-3PA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1056-6AB36-3PA0 — 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)
3RT1056-6AB36-3PA0 — 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
3RT1056-6AB36-3PA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-6AB36-3PA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-6AB36-3PA0 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1056-6AB36-3PA0 — Specifications
ParameterValue
At AC40 ... 60 ms

Product details

Siemens 3RT1056-6AB36-3PA0 is a SIRIUS size S6 power contactor with a built-in auxiliary switch. Coil rated for 23-26 V DC, switching frequency up to 750 operations per hour in AC-3 duty. Main power terminals accept stranded conductors from 25 to 120 mm²; auxiliary terminals handle solid or stranded wire up to 4 mm². Screw fixing, mounting surface can be rotated ±90°, tilted ±22.5°.

Mounting & Dimensions

Size S6: 172 mm high, 120 mm wide, 170 mm deep. Screw fixing with four 9 mm holes on a standard mounting plate.

Frequently asked questions

What's the closest functional cross-reference — 3RT1056-6AB36?

3RT1056-6AB36 is the base version without the auxiliary switch. This -3PA0 variant includes the auxiliary switch but shares the same S6 frame and mounting, so it fits the same panel envelope.

What is the listed depth of 3RT1056-6AB36-3PA0?

170 mm.

What solid conductor sizes does the auxiliary terminal accept?

Solid conductors: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), max. 2x (0.75...4 mm²).

Will it drop into a panel specified around 3RT1056-6AB36 without rewiring?

Yes, the frame size and terminal layout are identical, so the physical swap is straightforward. The only difference is the auxiliary switch is integrated on this variant, so if the base panel did not have an auxiliary block, you now have one that may need to be wired or left unused.

MPN
3RT1056-6AB36-3PA0