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Siemens 3RT2446-1AN20 — Contactors

Siemens 3RT2446-1AN20 SIRIUS Contactor, Size S3, 70 mm Wide

MPN3RT2446-1AN20
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Siemens SIRIUS contactor, size S3, 3RT2446-1AN20, screw-type coil terminals, 70 mm width, 152 mm depth, auxiliary switch included.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2446-1AN20 — Identification
ParameterValue
Contactor frame sizeS3
3RT2446-1AN20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
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
3RT2446-1AN20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.35
Rated value @ 50 Hz220 V
3RT2446-1AN20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2446-1AN20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 250 A (690 V,100 kA)
Short-circuit coordination type 2, fusegR: 250 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2446-1AN20 — Connection & Mounting
ParameterValue
Main circuit connectionbox terminal
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2446-1AN20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2446-1AN20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2446-1AN20 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm
3RT2446-1AN20 — Specifications
ParameterValue
At AC10 ... 21 ms

Product details

It mounts on a 35 mm DIN rail per DIN EN 60715 using either screw fixing or snap-on, and the mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° tilt forward/backward — useful when you are squeezing it into a tight enclosure layout. The power terminals accept stranded wire from 6 to 70 mm², so it handles the main motor feed without needing a separate terminal block. The auxiliary contact block is included (screw-type terminals) and accepts 2x (0.5...1.5 mm²) solid or 2x (0.75...2.5 mm²) stranded — standard control wiring sizes. The auxiliary contacts are rated for AC switching across the common control voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, 1 A at 690 V. That covers most panel signal circuits without derating concerns up to the stated voltages.

The contactor measures 140 mm high, 70 mm wide, and 152 mm deep. No special maintenance interval needed beyond standard contact inspection.

Frequently asked questions

Where can I buy 3RT2446-1AN20 and how do I get a price?

We source this part to order against an RFQ. Send us a request with your quantity and target delivery window, and we will confirm availability and current pricing at quote time. No stock count or price figure is published here.

What are the key ratings of the 3RT2446-1AN20 auxiliary contacts?

The auxiliary contacts are rated for AC switching: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. The contact block uses screw-type terminals and accepts 2x (0.5...1.5 mm²) solid or 2x (0.75...2.5 mm²) stranded wire.

MPN
3RT2446-1AN20