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Siemens 3RT2637-1NF35 — Contactors

Siemens 3RT2637-1NF35 Contactor, 6A at 230V, 65mm wide

MPN3RT2637-1NF35
Active

Siemens SIRIUS 3RT2 contactor, 3RT2637-1NF35, 6 A at 230 V, screw-type terminals, 65 mm width, 130 mm depth.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT2637-1NF35 — Identification
ParameterValue
Contactor frame sizeS2
3RT2637-1NF35 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz83 ... 155 V
3RT2637-1NF35 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability0.00000001
3RT2637-1NF35 — Protection & Coordination
ParameterValue
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2637-1NF35 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022
3RT2637-1NF35 — Durability
ParameterValue
Durability with aux. switch block (cycles, typ.)3 000 000
3RT2637-1NF35 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2637-1NF35 — Mechanical
ParameterValue
Width65 mm
Height114 mm
Depth130 mm
3RT2637-1NF35 — Specifications
ParameterValue
At AC30 ... 55 ms

Product details

Coil is AC/DC, 83–155 V, so it'll pull in on whatever control voltage you've got in that range without needing a separate coil rectifier.

Snaps onto a 35 mm DIN rail per EN 50022 — the standard stuff. 65 mm wide, 114 mm tall, 130 mm deep, so it fits in a standard 8-module wide enclosure with room for a few aux blocks alongside.

Termination details

Power terminals are screw-type, accepting solid conductors from 0.5 mm² up to 4 mm² (2x each), and stranded from 10 mm² up to 50 mm² (1x). That's enough for a 40 °C rated lug on the main circuit. Coil terminals are also screw-type, so you're not hunting for a special tool on site.

Frequently asked questions

What are the key ratings I need to know for fit?

Rated 6 A at 230 V and 3 A at 400 V. Coil is AC/DC, 83–155 V. Width is 65 mm, depth 130 mm — fits a standard DIN-rail panel. Power terminals accept up to 50 mm² stranded wire.

Will this contactor drop into a panel designed for a 3RT2037-1AF00-ZX95?

Both are 65 mm wide and mount on 35 mm DIN rail, so the footprint is the same. The 3RT2637-1NF35 has a higher coil voltage range (83–155 V AC/DC) versus the 3RT2037-1AF00-ZX95's specific coil rating — check your control voltage before swapping. Power terminal sizes are similar; no rewiring should be needed if the wire gauges match.

MPN
3RT2637-1NF35