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Siemens 3RT1076-6AV36 — Contactors

Siemens 3RT1076-6AV36 SIRIUS Power Contactor, S12, 380-420 V

MPN3RT1076-6AV36
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Siemens SIRIUS power contactor 3RT1076-6AV36, size S12, 380-420 V AC coil, screw-type terminals, 70-240 mm² main circuit, auxiliary switch included.

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

Specifications

3RT1076-6AV36 — Identification
ParameterValue
Contactor frame sizeS12
3RT1076-6AV36 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V430 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
3RT1076-6AV36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.9
Rated value @ 50 Hz380 ... 420 V
3RT1076-6AV36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1076-6AV36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 630 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 500 A (690 V, 100 kA), aM: 500 A (690 V, 50 kA), BS88: 500 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1076-6AV36 — 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
3RT1076-6AV36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1076-6AV36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1076-6AV36 — Mechanical
ParameterValue
Width160 mm
Height214 mm
Depth225 mm
3RT1076-6AV36 — Specifications
ParameterValue
At AC60 ... 100 ms

Product details

What this contactor is

It is rated for screw fixing onto a vertical mounting surface, rotatable ±90° or tiltable ±22.5° front-to-back.

Main circuit accepts stranded conductors from 70 to 240 mm² — sized for high-current motor or resistive loads. The auxiliary contact handles 10 A at 24 V, which covers most PLC or relay interface signals; at 110 V it drops to 1 A, so check your control voltage before wiring. Switching rates are duty-dependent: 500 operations per hour at AC-1 (resistive), 420/h at AC-3 (motor starting), and 130/h at AC-4 (plugging/reversing). The coil picks up at 1.1× rated voltage and drops out at 0.8× — a 380-420 V coil on a 400 V line will hold reliably.

Dimensions: 214 mm high, 160 mm wide, 225 mm deep. Mounts via screw fixing through 11 mm holes.

No official successor has been published. If you are cross-referencing from an older SIRIUS variant, the S12 frame size and 380-420 V coil are the key fit parameters — verify the mounting footprint and auxiliary contact arrangement against your panel layout.

Frequently asked questions

What are the key dimensions for panel layout?

Height 214 mm, width 160 mm, depth 225 mm. Mounting via screw fixing with 11 mm holes. Clearances: 10 mm up/down/sides, 20 mm forward.

What wire sizes does the main circuit accept?

Stranded conductors from 70 to 240 mm². The auxiliary circuit accepts solid or stranded wire: 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), or max 2x (0.75-4 mm²).

What is the maximum switching rate for motor duty?

At AC-3 (motor starting) the maximum is 420 operations per hour. At AC-4 (plugging/reversing) it drops to 130 operations per hour.

What is the auxiliary contact rating?

The auxiliary contact is rated 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, and 1 A at 110 V.

MPN
3RT1076-6AV36