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Siemens 3RT1076-6AR36 — Contactors

Siemens 3RT1076-6AR36 SIRIUS Power Contactor, S12 Frame, 440

MPN3RT1076-6AR36
Active

Siemens SIRIUS, power contactor, S12 frame, 3RT1076-6AR36, rated control voltage 440-480 V, screw fixing, auxiliary switch included, main cable range 70-240 mm² stranded.

Siemens 3RT1076-6AR36 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1076-6AR36 — Identification
ParameterValue
Contactor frame sizeS12
3RT1076-6AR36 — 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
3RT1076-6AR36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.9
Rated value @ 50 Hz440 ... 480 V
3RT1076-6AR36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1076-6AR36 — 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)
3RT1076-6AR36 — 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
3RT1076-6AR36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1076-6AR36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1076-6AR36 — Mechanical
ParameterValue
Width160 mm
Height214 mm
Depth225 mm
3RT1076-6AR36 — Specifications
ParameterValue
At AC60 ... 100 ms

Product details

Switching frequency and duty — where the S12 frame earns its keep

The 3RT1076-6AR36: Switching frequency varies sharply by duty class: AC-1 (resistive) allows up to 500 operations per hour, AC-3 (squirrel-cage motor start/run) allows 420/h, AC-4 (plugging/inching) drops to 130/h. The AC-3e rating matches AC-3 at 420/h. That means this contactor is comfortable cycling a conveyor motor several times a minute but not designed for high-speed jogging. Arcing time is 10-15 ms, with pick-up and drop-out delays of 60-100 ms on both AC and DC coils — standard for a frame this size.

Mounting position is flexible: vertical surface with +/-90° rotation or +/-22.5° tilt front/back. Screw fixing through an 11 mm hole, one hole provided. Keep 10 mm clearance upwards, downwards, and at the side; 20 mm forwards. Dimensions are 214 mm high, 160 mm wide, 225 mm deep — that depth matters when you're laying out a deep panel or a cabinet with limited rear clearance.

Frequently asked questions

What are the DC ratings of the auxiliary contacts on 3RT1076-6AR36?

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

Where can I buy 3RT1076-6AR36 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the depth of 3RT1076-6AR36?

The depth is 225 mm.

What solid wire sizes does the main terminal accept?

The main power terminal accepts 2x (0.5-1.5 mm²), 2x (0.75-2.5 mm²), and max. 2x (0.75-4 mm²) solid or stranded conductors.

MPN
3RT1076-6AR36