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Siemens 3RT1056-6AP30 — Contactors

3RT1056-6AP30 - Siemens

MPN3RT1056-6AP30
Active

power contactor, AC-3e/AC-3 185 A, 90 kW / 400 V AC (50-60 Hz) / DC Uc: 220-240 V 3-pole, without auxiliary contacts drive: conventional main circuit: busbar control and auxiliary circuit: screw terminal

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

Specifications

3RT1056-6AP30 — Identification
ParameterValue
Contactor frame sizeS6
3RT1056-6AP30 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V160 A
Rated value @ 400 V45 kW
Rated value @ 500 V132 kW
Rated value @ 690 V65 kW
Rated value @ 230 V30 hp
Rated value @ 24 V160 A
Rated value @ 60 V160 A
Rated value @ 110 V160 A
Rated value @ 220 V160 A
3RT1056-6AP30 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8
Rated value @ 50 Hz220 ... 240 V
3RT1056-6AP30 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT1056-6AP30 — 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)
3RT1056-6AP30 — 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
3RT1056-6AP30 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1056-6AP30 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1056-6AP30 — Mechanical
ParameterValue
Width140 mm
Height172 mm
Depth170 mm
3RT1056-6AP30 — Specifications
ParameterValue
At AC40 ... 60 ms

Frequently asked questions

What is the coil voltage of Siemens 3RT1056-6AP30?

Buyers must verify the 220-240 V DC coil matches panel control voltage before ordering.

What is the difference between 3RT1056-6AP30 and 3RT1056-6AP36?

The AP36 variant typically denotes a coil voltage difference; engineers need it to avoid wrong replacements.

Is the Siemens 3RT1056-6AP30 suitable for AC-3e applications?

AC-3e confirms compatibility with modern IE3/IE4 motors at 185 A / 90 kW, critical for spec compliance.

How many auxiliary contacts does the 3RT1056-6AP30 have?

The SKU ships without auxiliaries; designers must add blocks and need this confirmed up front.

What is the current price of the 3RT1056-6AP30?

Procurement compares distributor and OEM pricing before issuing a purchase order.

Where can I buy a genuine Siemens 3RT1056-6AP30 with confirmed stock?

Buyers need a trustworthy authorized channel to avoid counterfeit Sirius contactors.

MPN
3RT1056-6AP30