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Siemens 3RT1076-2NF36 — Contactors

Siemens 3RT1076-2NF36 SIRIUS Power Contactor, 96-127V Coil,

MPN3RT1076-2NF36
Active

Siemens SIRIUS power contactor, type 3RT1076-2NF36, S12 frame size, 96-127 V AC/DC coil, spring-type terminals, screw fixing, 214 x 160 x 225 mm (H x W x D).

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

Specifications

3RT1076-2NF36 — Identification
ParameterValue
Contactor frame sizeS12
3RT1076-2NF36 — 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
3RT1076-2NF36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.4
Rated value @ 50 Hz96 ... 127 V
3RT1076-2NF36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1076-2NF36 — 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)
3RT1076-2NF36 — Connection & Mounting
ParameterValue
Main circuit connectionConnection bar
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
3RT1076-2NF36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1076-2NF36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1076-2NF36 — Mechanical
ParameterValue
Width160 mm
Height214 mm
Depth225 mm
3RT1076-2NF36 — Specifications
ParameterValue
At AC80 ... 100 ms

Product details

It's a current-production part, so no lifecycle surprises when you go to fill a BOM line — this is the active catalog item, not an NRND or phase-out code. The coil is rated for 96-127 V AC/DC, which covers common control voltages in European and Asian panels. The magnet coil termination uses spring-type terminals — no screw torque to check, just strip and push. That's a time-saver on the panel build and a reliability win in high-vibration environments. That flexibility matters when you're fitting it into a crowded enclosure and the gland plate dictates the orientation.

Sizing and fit — S12 frame

The S12 frame is the physical envelope: 214 mm high, 160 mm wide, 225 mm deep. That depth is the dimension you need to check against your enclosure depth — at 225 mm it's not a shallow-panel part. The main power terminals accept stranded wire from 70 mm² up to 240 mm², so it's sized for heavy motor feeders, not control wiring. Auxiliary and coil terminals take 2x (0.25-2.5 mm²) solid or stranded, spring-cage style. That's a separate wire range from the main poles — don't run the main motor leads through the aux terminals.

Switching duty and ratings

The contactor is rated for different switching frequencies depending on duty class: 500 operations/hour in AC-1 (resistive), 420 in AC-3 (standard motor starting), and 130 in AC-4 (plugging/inching). AC-3e follows the same 420 cycles/hour as AC-3. If your application involves frequent reversing or jogging, the AC-4 limit of 130 ops/hour is the binding constraint — don't spec it against the AC-3 number. The auxiliary switch is present and rated at 10 A at 24 V, 2 A at 48 V and 60 V, and 1 A at 110 V. These are the contact ratings for the aux block — useful for interlocking or status feedback to a PLC input. Arcing time is 10-15 ms, and the contactor picks up in 80-100 ms on both AC and DC. Drop-out and pick-up times are symmetrical, which simplifies timing coordination in sequential start schemes.

Environmental and clearance

That's the minimum free air space for heat dissipation and arc flash containment. In a dense panel, check that the forward clearance of 20 mm isn't eaten by a door-mounted HMI or terminal block.

Frequently asked questions

How do I get current pricing and availability for 3RT1076-2NF36?

Submit an RFQ for this order code. Pricing and stock are confirmed at quote time through independent distribution channels — no firm figures are published here.

What is 3RT1076-2NF36's listed depth?

The depth is 225 mm. That's the dimension from the mounting surface to the furthest projection, critical for enclosure depth clearance.

What wire sizes does the main power circuit accept?

The main terminals accept stranded wire from 70 mm² up to 240 mm². The auxiliary and coil terminals use a separate spring-cage connection for 2x (0.25-2.5 mm²) solid or stranded.

What compliance documentation does Siemens provide for 3RT1076-2NF36?

As a SIRIUS series product from Siemens, this contactor is designed to meet applicable IEC and UL standards for industrial control equipment. Specific declarations (RoHS, REACH, UL file) are available from Siemens documentation on request.

MPN
3RT1076-2NF36