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Siemens 3RT2046-3AN20 — Contactors

Siemens 3RT2046-3AN20 SIRIUS Power Contactor, Size S3, Sprin

MPN3RT2046-3AN20
Active

Siemens SIRIUS 3RT2046-3AN20 power contactor, size S3, spring-type terminals on magnet coil, screw and snap-on mounting on 35 mm DIN rail, 140 x 70 x 152 mm.

Siemens 3RT2046-3AN20 datasheet (PDF)
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

3RT2046-3AN20 — Identification
ParameterValue
Contactor frame sizeS3
3RT2046-3AN20 — 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 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V20 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2046-3AN20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.35
Rated value @ 50 Hz220 V
3RT2046-3AN20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2046-3AN20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)
Short-circuit coordination type 2, fusegG: 160 A (690 V, 100 kA), aM: 100 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2046-3AN20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2.5 ... 16 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2046-3AN20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2046-3AN20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2046-3AN20 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm
3RT2046-3AN20 — Specifications
ParameterValue
At AC10 ... 21 ms

Product details

What This Siemens 3RT2046-3AN20 SIRIUS Power Contactor Is

It is a current-production part. The coil termination uses spring-type terminals, which speeds up panel wiring — no screwdriver needed for the magnet coil connection, just strip and push. The main and auxiliary terminals accept solid conductors from 2.5 to 16 mm² and stranded from 6 to 70 mm², covering a wide range of motor feeder sizes. It mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 60715, and the mounting position is flexible — you can rotate it ±180° on a vertical surface or tilt it forward/backward ±22.5°, which helps when you're squeezing it into a tight enclosure corner.

For resistive loads (AC-1) it's rated at 900 1/h, and for the tougher AC-4 plugging/reversing duty it drops to 250 1/h. The AC-3e rating (850 1/h) mirrors the standard AC-3 figure, confirming it's optimized for motor starting. The auxiliary contact ratings span 24 V at 10 A down to 440 V at 0.8 A, covering standard control voltages on the line.

Frequently asked questions

What is the depth of the 3RT2046-3AN20?

The depth is 152 mm. That's the dimension from the DIN rail mounting surface to the front of the contactor, so make sure your enclosure has at least that much clearance plus room for wiring.

Will the 3RT2046-3AN20 drop into a panel specified for 3RT2015-2AP02?

Not directly without checking dimensions and ratings. The 3RT2046-3AN20 is a size S3 frame (140 x 70 x 152 mm), while the 3RT2015-2AP02 is a smaller frame. The DIN rail mounting is the same, but the footprint, terminal sizes, and electrical ratings differ — you'll need to verify panel layout clearance and conductor sizing before swapping.

MPN
3RT2046-3AN20