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Siemens 3RT1076-2XF46-0LA2 — Contactors

Siemens 3RT1076-2XF46-0LA2 SIRIUS Power Contactor, Size S12,

MPN3RT1076-2XF46-0LA2
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Siemens SIRIUS power contactor, 3RT1076-2XF46-0LA2, Size S12, 110 VDC coil, screw fixing, auxiliary switch, 160 x 214 x 225 mm.

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

Specifications

3RT1076-2XF46-0LA2 — Identification
ParameterValue
Contactor frame sizeS12
3RT1076-2XF46-0LA2 — 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 V148 kW
Rated value @ 230 V6 A
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1076-2XF46-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1076-2XF46-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT1076-2XF46-0LA2 — 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)
3RT1076-2XF46-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0,25 ... 2,5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew fixing
Side-by-side mountingYes
3RT1076-2XF46-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1076-2XF46-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1076-2XF46-0LA2 — Mechanical
ParameterValue
Width160 mm
Height214 mm
Depth225 mm

Product details

The 110 VDC coil pulls in with a 0.7 initial-value factor and holds with an arcing time of 10–15 ms. The auxiliary switch is factory-fitted, saving a separate aux block order.

Fastened via screw fixing with a single 11 mm hole. The mounting surface must be vertical; the contactor can be rotated ±90° or tilted ±22.5° front-to-back. These spacings govern panel layout — pack too tight and arc flash or heat dissipation is compromised. Dimensions: 160 mm wide, 214 mm high, 225 mm deep. The 225 mm depth is the full body depth including arc chamber; verify clearance behind the panel door before routing cables.

Solid or stranded conductors: 2x (0.25–2.5 mm²) per clamp. Accepts ferruled stranded wire up to 2.5 mm²; strip length follows standard 8–10 mm practice. No special lug required.

Switching frequencies by duty class

Maximum switching rates per hour: AC-1 (resistive) 500 1/h, AC-2 (slip-ring motor) 170 1/h, AC-3 (squirrel-cage motor) 420 1/h, AC-3e (enhanced) 420 1/h, AC-4 (plugging/inching) 130 1/h, DC-1 (resistive) 250 1/h, DC-3 (shunt motor) 200 1/h, DC-5 (series motor) 200 1/h. These are mechanical design limits — the real limit in a motor-start application is the thermal load of the starting current, not the contactor alone.

Lifecycle stage is current production. No phase-out or last-time-buy notice has been issued.

Frequently asked questions

What compliance documentation does this brand provide for 3RT1076-2XF46-0LA2?

As a Siemens SIRIUS product, it carries CE and UL/CSA markings per standard catalog documentation. RoHS and REACH declarations are available from Siemens on request.

Where can I buy 3RT1076-2XF46-0LA2?

This part is sourced to order through independent industrial-automation distribution. Submit an RFQ for current pricing and availability; we confirm both at quote time.

MPN
3RT1076-2XF46-0LA2