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Siemens 3RT5044-1AR60 — Contactors

Siemens 3RT5044-1AR60 SIRIUS Power Contactor, Size S3, 70 mm

MPN3RT5044-1AR60

Siemens SIRIUS 3RT5044-1AR60 power contactor, size S3, 3-pole, screw-type terminals, 70 mm width, 146 mm height, 139 mm depth, for AC-3e motor switching up to 59 kW at 400 V.

StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RT5044-1AR60 — Identification
ParameterValue
Contactor frame sizeS3

Ratings & Performance

3RT5044-1AR60 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V18.6 kW
Rated value @ 230 V6 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A

Control & Coil

3RT5044-1AR60 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.28
Rated value @ 50 Hz400 V

Contacts & Poles

3RT5044-1AR60 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Protection & Coordination

3RT5044-1AR60 — 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

Connection & Mounting

3RT5044-1AR60 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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 DIN rail
Side-by-side mountingYes

Durability

3RT5044-1AR60 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000

Environmental

3RT5044-1AR60 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m

Mechanical

3RT5044-1AR60 — Mechanical
ParameterValue
Width70 mm
Height146 mm
Depth139 mm

Specifications

3RT5044-1AR60 — Specifications
ParameterValue
At AC5 000 1/h

Product details

Motor power ratings — where the real load limit sits

The 3RT5044-1AR60: The AC-3e motor-switching capability is the rating that governs the real load: 59 kW at 400 V and 60 °C ambient, or 34 kW at 230 V, and up to 102 kW at 690 V. The insulation voltage is rated 1,000 V, and the pollution degree is 3 (conductive pollution typical in industrial enclosures), so the contactor is built for the dirty side of the panel, not just clean HVAC duty.

Frequently asked questions

What compliance documentation does Siemens provide for 3RT5044-1AR60?

The part carries a RoHS substance prohibition date of 03/01/2017, indicating compliance with the EU RoHS directive. The product brand is SIRIUS, and the design is a power contactor per IEC/EN standards — UL/CSA listing is typical for this series but not explicitly confirmed in the record.

MPN
3RT5044-1AR60