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Siemens 3RT1046-3AD20 — Contactors

Siemens 3RT1046-3AD20 SIRIUS Power Contactor, 55 kW at 500 V

MPN3RT1046-3AD20

Siemens SIRIUS power contactor, size S3, order code 3RT1046-3AD20, rated 55 kW at 500 V AC-3, screw-type terminals, IP20 front protection.

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

3RT1046-3AD20 — Identification
ParameterValue
Contactor frame sizeS3
3RT1046-3AD20 — 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
3RT1046-3AD20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz42 V
3RT1046-3AD20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1046-3AD20 — 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
3RT1046-3AD20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (2.5 ... 16 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm and 75 mm standard mounting rail
Side-by-side mountingYes
3RT1046-3AD20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1046-3AD20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1046-3AD20 — Mechanical
ParameterValue
Width70 mm
Height146 mm
Depth139 mm
3RT1046-3AD20 — Specifications
ParameterValue
At AC10 ... 25 ms

Product details

Side-by-side mounting is permitted, which simplifies multi-contactor panels for star-delta or reversing starters. The screw-type terminals on the main current circuit accept solid conductors from 0.25 to 2.5 mm² (two per clamp) and stranded conductors from 10 to 50 mm² (two per clamp), covering the full range from control wiring to motor power tails.

Environmental and Protection

Rated IP20 on the front with the cover or box terminal installed; the terminal body itself is IP00, so the contactor relies on the enclosure for washdown or dust protection. Pollution degree 3, meaning it tolerates conductive pollution in a typical industrial panel environment.

Frequently asked questions

What is the motor rating of 3RT1046-3AD20?

The AC-3 motor rating is 55 kW at 500 V and 25.4 kW at 690 V — these are the ratings that determine the motor load it can switch under starting conditions.

How do I get current pricing and availability for 3RT1046-3AD20?

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

MPN
3RT1046-3AD20