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Siemens 3RT1044-1AN60 — Contactors

Siemens 3RT1044-1AN60 SIRIUS Power Contactor, Size S3, 37 kW

MPN3RT1044-1AN60

Siemens SIRIUS power contactor, size S3, 3RT1044-1AN60, 37 kW at 500 V AC-3, screw terminals, snap-on 35/75 mm DIN rail.

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

3RT1044-1AN60 — Identification
ParameterValue
Contactor frame sizeS3
3RT1044-1AN60 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V55 A
Rated value @ 400 V3 A
Rated value @ 500 V37 kW
Rated value @ 690 V18.6 kW
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
3RT1044-1AN60 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz200 V
3RT1044-1AN60 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1044-1AN60 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 250 A
Short-circuit coordination type 2, fusefuse gL/gG: 125 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1044-1AN60 — 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), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, solid or stranded2x (2.5 ... 16 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 and 75 mm standard mounting rail
Side-by-side mountingYes
3RT1044-1AN60 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1044-1AN60 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1044-1AN60 — Mechanical
ParameterValue
Width70 mm
Height146 mm
Depth139 mm
3RT1044-1AN60 — Specifications
ParameterValue
At AC10 ... 19 ms

Product details

It carries 37 kW at 500 V and 18.6 kW at 690 V in AC-3 duty, which covers the bulk of standard induction motors in industrial panels.

Dimensions: 146 mm high, 70 mm wide, 139 mm deep.

Wire terminations

Main circuit terminals accept solid wire from 2x (0.5 to 1.5 mm²) up to max 2x (0.75 to 4 mm²), and stranded wire from 2x (2.5 to 16 mm²) or 2x (10 to 50 mm²). That covers everything from control-circuit pigtails to motor feeder cables. The solid-wire range is tight on the small end — fine for standard panel wiring with ferrules.

Frequently asked questions

What is the depth of 3RT1044-1AN60?

The depth is 139 mm, with a height of 146 mm and width of 70 mm.

What wire sizes does the 3RT1044-1AN60 accept?

Solid wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded: 2x (2.5 to 16 mm²) and 2x (10 to 50 mm²).

Where can I buy 3RT1044-1AN60?

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

Will 3RT1044-1AN60 drop into a panel specified around 3RT1044-1FB46?

Both are size S3 SIRIUS power contactors with the same mounting footprint (screw/snap-on 35/75 mm rail) and similar dimensions. The 3RT1044-1AN60 uses screw terminals; the 3RT1044-1FB46 uses spring-cage terminals. Panel cutouts and DIN rail positions are identical, but verify terminal lug compatibility if your wiring was prepared for spring-cage.

MPN
3RT1044-1AN60