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Siemens 3RT5056-6AV36 — Contactors

Siemens 3RT5056-6AV36 SIRIUS Power Contactor, 121 kW at 400

MPN3RT5056-6AV36

Siemens SIRIUS power contactor, size S6, order code 3RT5056-6AV36, screw-type terminals, rated 121 kW at 400 V 60 °C, integrated varistor surge suppressor.

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

Specifications

3RT5056-6AV36 — Identification
ParameterValue
Contactor frame sizeS6
3RT5056-6AV36 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V65 kW
Rated value @ 230 V6 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT5056-6AV36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.9
Rated value @ 50 Hz380 ... 420 V
3RT5056-6AV36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT5056-6AV36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 355 A
Short-circuit coordination type 2, fusefuse gL/gG: 315 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT5056-6AV36 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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
3RT5056-6AV36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT5056-6AV36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT5056-6AV36 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT5056-6AV36 — Specifications
ParameterValue
At AC2 000 1/h

Product details

Rated insulation voltage is 1 000 V, and the contactor is rated for AC-3e duty up to 1 000 V maximum. At 400 V and 60 °C ambient, it handles 121 kW of motor load; at 230 V and 60 °C, 70 kW. At 690 V the rating is 65 kW. Maximum switching frequency varies by duty: 800 operations per hour under AC-1, 750 under AC-3, and 130 under AC-4.

Fastening is by screw fixing. Side-by-side mounting is permitted, which simplifies dense panel layouts. Dimensions: 172 mm high, 120 mm wide, 170 mm deep. Pollution degree 3 rated, meaning it tolerates conductive pollution typical in industrial enclosures. Minimum conductor cross-section for the main circuit is 95 mm² at both 40 °C and 60 °C ambient.

Coil data and operating conditions

Power factor at rated voltage is 0.9 at both frequencies. Coil inrush and hold currents: 6 A at 24 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, and 3 A at 400 V. The surge suppressor design uses a varistor, which clips voltage spikes from the coil circuit.

Substance prohibition compliance date is 03/01/2017, indicating RoHS and REACH conformance from that date forward.

Frequently asked questions

Where can I buy 3RT5056-6AV36 and get a price?

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

What is the closest functional alternative to 3RT5056-6AV36?

The closest peer in the same size S6 frame is 3RT5056-6AM36, which shares the same mechanical footprint and screw-terminal main circuit. The key difference is the coil voltage — 6AV36 uses a 380-420 V AC coil with varistor, while 6AM36 uses a different coil voltage. Verify coil compatibility before substituting.

What compliance documentation is available for 3RT5056-6AV36?

Substance prohibition compliance date is 03/01/2017, covering RoHS and REACH requirements. The part carries a pollution degree 3 rating per IEC 60947-1.

MPN
3RT5056-6AV36