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Siemens 3RT1046-1AG20 — Contactors

Siemens 3RT1046-1AG20 SIRIUS S3 Power Contactor, 70 mm

MPN3RT1046-1AG20

Siemens SIRIUS S3 power contactor, 3RT1046-1AG20, screw-type terminals, 70 mm width, IP20 front, for 50/60 Hz mains.

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

3RT1046-1AG20 — Identification
ParameterValue
Contactor frame sizeS3
3RT1046-1AG20 — 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
3RT1046-1AG20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1046-1AG20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1046-1AG20 — 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
3RT1046-1AG20 — 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
3RT1046-1AG20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1046-1AG20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1046-1AG20 — Mechanical
ParameterValue
Width70 mm
Height146 mm
Depth139 mm
3RT1046-1AG20 — Specifications
ParameterValue
At AC10 ... 25 ms

Product details

SIRIUS S3 power contactor — panel integration notes

The 70 mm width and 146 mm height footprint is typical for the S3 frame size, with a depth of 139 mm that includes clearance for the box terminal cover. IP20 on the front face with the cover fitted; the terminal area itself is IP00 — expect this in panel builds where the enclosure provides overall ingress protection.

Rated for 50/60 Hz mains. The AC-3 maximum switching frequency of 850 operations per hour sets the realistic duty cycle for motor loads — this is the rating that governs contactor life under typical induction-motor starting, not the higher AC-1 figure. AC-4 maximum at 250 1/h covers plugging and inching duty.

Frequently asked questions

Where can I buy 3RT1046-1AG20 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What is the depth of 3RT1046-1AG20?

The depth is 139 mm, which includes clearance for the box terminal cover on the front of the contactor.

What wire sizes does the 3RT1046-1AG20 accept?

The screw-type terminals accept solid conductors: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), max. 2x (0.75...4 mm²) on the control side, and stranded conductors: 2x (10...50 mm²) on the main circuit.

MPN
3RT1046-1AG20