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Siemens 3RT1046-1AK64-3MA0 — Contactors

Siemens 3RT1046-1AK64-3MA0 SIRIUS Power Contactor, S3, 55 kW

MPN3RT1046-1AK64-3MA0

Siemens SIRIUS power contactor, S3 frame, 3RT1046-1AK64-3MA0, rated 55 kW at 500 V AC, 25.4 kW at 690 V AC, screw-type terminals, snap-on mounting for 35 mm and 75 mm 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

3RT1046-1AK64-3MA0 — Identification
ParameterValue
Contactor frame sizeS3
3RT1046-1AK64-3MA0 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V80 A
Rated value @ 400 V3 A
Rated value @ 500 V55 kW
Rated value @ 690 V25.4 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
3RT1046-1AK64-3MA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1046-1AK64-3MA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1046-1AK64-3MA0 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 250 A
Short-circuit coordination type 2, fusefuse gL/gG: 160 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1046-1AK64-3MA0 — 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
3RT1046-1AK64-3MA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1046-1AK64-3MA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1046-1AK64-3MA0 — Mechanical
ParameterValue
Width70 mm
Height146 mm
Depth188 mm
3RT1046-1AK64-3MA0 — Specifications
ParameterValue
At AC10 ... 25 ms

Product details

SIRIUS S3 power contactor – 55 kW at 500 V, screw terminals, snap-on DIN rail

The Siemens SIRIUS 3RT1046-1AK64-3MA0 is a size S3 power contactor rated for motor loads up to 55 kW at 500 V AC and 25.4 kW at 690 V AC, with a rated operational current of 10 A at 24 V and 6 A at 230 V for the auxiliary contacts.

The contactor accepts solid conductors from 2x 0.5 mm² up to 2x 4 mm² and stranded conductors from 2x 10 mm² up to 2x 50 mm² on the main circuit. The arcing time at AC is 10 to 25 ms, and the maximum switching frequency at AC-3 duty is 850 operations per hour.

Frequently asked questions

What is the depth of 3RT1046-1AK64-3MA0?

The depth is 188 mm.

What solid conductor sizes does the 3RT1046-1AK64-3MA0 accept?

It accepts 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), and max. 2x (0.75... 4 mm²) solid conductors.

Where can I buy 3RT1046-1AK64-3MA0 and how is it quoted?

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

Will 3RT1046-1AK64-3MA0 drop into a panel specified around 3RT1044-1FB46 without rewiring?

Both are SIRIUS S3 frame contactors with screw terminals, so the footprint and mounting rail are identical. However, verify the coil voltage and auxiliary contact configuration of the original specification before substituting.

MPN
3RT1046-1AK64-3MA0