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Siemens 3RT1046-1AF00 — Contactors

Siemens 3RT1046-1AF00 SIRIUS Power Contactor, S3, AC-3 45 kW

MPN3RT1046-1AF00

Siemens SIRIUS power contactor, 3RT1046-1AF00, S3 frame, screw terminals, 45 kW at 400 V AC-3, IP20 front, snap-on DIN rail.

$145.73Ref. price · indicative, final on quote
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

3RT1046-1AF00 — Identification
ParameterValue
Contactor frame sizeS3
3RT1046-1AF00 — 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
3RT1046-1AF00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1046-1AF00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1046-1AF00 — 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
3RT1046-1AF00 — 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
3RT1046-1AF00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1046-1AF00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1046-1AF00 — Mechanical
ParameterValue
Width70 mm
Height146 mm
Depth139 mm
3RT1046-1AF00 — Specifications
ParameterValue
At AC10 ... 25 ms

Product details

It carries a rated operational power of 45 kW at 400 V in AC-3 duty (squirrel-cage motors), and 80 A at 400 V in AC-4 duty (plugging/reversing).

The main current circuit uses screw-type terminals. Solid conductor cross-sections accepted: 2x (0.5…1.5 mm²), 2x (0.75…2.5 mm²), max. 2x (0.75…4 mm²). Stranded conductors: 2x (10…50 mm²).

Environmental and protection ratings

The front of the contactor carries IP20 protection (with cover/box terminal), while the terminal area itself is IP00 — the panel builder must provide supplementary enclosure protection where needed.

Frequently asked questions

Where can I buy 3RT1046-1AF00?

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

What is 3RT1046-1AF00's AC-3 motor rating at 400 V?

The contactor is rated for 45 kW at 400 V in AC-3 duty, which covers standard squirrel-cage motor starting and running.

What compliance documentation does Siemens provide for 3RT1046-1AF00?

The part carries a substance prohibitance date of 05/01/2012, confirming RoHS and REACH compliance for that cut-off. It is certified to IEC 60947-1 with degree of pollution 3.

MPN
3RT1046-1AF00