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Siemens 3RT2046-3XB40-0LA2 — Contactors

Siemens 3RT2046-3XB40-0LA2 SIRIUS Contactor, 96 A at 480 V

MPN3RT2046-3XB40-0LA2
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Siemens SIRIUS S3 contactor, 3RT2046-3XB40-0LA2, 96 A AC-3 at 480 V, 24 VDC coil, spring-type terminals, screw and snap-on DIN rail mount.

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

Specifications

3RT2046-3XB40-0LA2 — Identification
ParameterValue
Contactor frame sizeS3
3RT2046-3XB40-0LA2 — 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
3RT2046-3XB40-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2046-3XB40-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT2046-3XB40-0LA2 — 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)
3RT2046-3XB40-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
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 standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2046-3XB40-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2046-3XB40-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2046-3XB40-0LA2 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm

Product details

The Siemens SIRIUS 3RT2046-3XB40-0LA2 is a Size S3 contactor — the frame size that handles the 96 A AC-3 motor switching at 480 V and 77 A at 600 V. The coil is 24 VDC, spring-type terminals on the magnet coil, so no screw torque to check on install.

The 70 mm width and 152 mm depth are standard for an S3 frame — it'll fit the same footprint as other S3 contactors in the SIRIUS family.

MPN
3RT2046-3XB40-0LA2