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Siemens 3RT1456-6NP36 — Contactors

Siemens 3RT1456-6NP36 SIRIUS Contactor, S6 Frame, 200-277V C

MPN3RT1456-6NP36
Active

Siemens SIRIUS S6 contactor, 3RT1456-6NP36, screw-type terminals, coil 200-277 V AC/DC, 25-120 mm² stranded main circuit.

$257.81Ref. price · indicative, final on quote
Siemens 3RT1456-6NP36 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1456-6NP36 — Identification
ParameterValue
Contactor frame sizeS6
3RT1456-6NP36 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 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
3RT1456-6NP36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.5
Rated value @ 50 Hz200 ... 277 V
3RT1456-6NP36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1456-6NP36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 355 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegR: 350 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1456-6NP36 — 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
3RT1456-6NP36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1456-6NP36 — Environmental
ParameterValue
Operating temperature range-25 ... +55 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1456-6NP36 — Mechanical
ParameterValue
Width120 mm
Height172 mm
Depth170 mm
3RT1456-6NP36 — Specifications
ParameterValue
At AC80 ... 90 ms

Product details

The Siemens 3RT1456-6NP36 is a SIRIUS S6-frame contactor with a coil rated for 200-277 V AC/DC.

The main power circuit accepts stranded conductors from 25 mm² up to 120 mm² — that's the range you'll see on larger motor feeders or distribution loads. The coil pulls in on 200-277 V AC/DC, so it covers common 208/240/277 V control voltages without needing a separate transformer tap. Dimensions are 172 mm high, 120 mm wide, 170 mm deep — that depth is a key number for enclosure selection: you need at least 170 mm clear behind the panel door, plus some finger space for the incoming cables.

Frequently asked questions

What are the main power terminal wire sizes?

The main circuit accepts stranded conductors from 25 mm² up to 120 mm².

What is the coil voltage and type?

The coil is rated 200-277 V AC/DC, covering both AC and DC control supplies in that range.

What are the mounting dimensions?

The contactor measures 172 mm high, 120 mm wide, and 170 mm deep. It mounts with screw fixing (one 9 mm hole) and allows vertical mounting with ±90° rotation and ±22.5° tilt.

MPN
3RT1456-6NP36