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Siemens 3RT2046-1XB40-0LA2 — Contactors

Siemens 3RT2046-1XB40-0LA2 SIRIUS Contactor, S3

MPN3RT2046-1XB40-0LA2
Active

Siemens SIRIUS contactor, 3RT2046-1XB40-0LA2, Size S3, DC-operated 24 V coil, screw terminals, 96 A at 480 V, 77 A at 600 V, 3-pole, DIN rail mount.

Siemens 3RT2046-1XB40-0LA2 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

3RT2046-1XB40-0LA2 — Identification
ParameterValue
Contactor frame sizeS3
3RT2046-1XB40-0LA2 — 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
3RT2046-1XB40-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2046-1XB40-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT2046-1XB40-0LA2 — 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)
3RT2046-1XB40-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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 standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2046-1XB40-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2046-1XB40-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2046-1XB40-0LA2 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm

Product details

Panel fit and mounting constraints

The 3RT2046-1XB40-0LA2: These must be maintained for arc quenching and thermal management during the 10-20 ms arcing time.

Coil drive and auxiliary switching

The DC coil is rated 24 V with an inrush current peak of 6.5 A and a pickup time of 38-57 ms. The holding power factor is 0.7 of initial value. An integrated auxiliary switch is present, eliminating the need for a separate add-on block in many standard circuits.

Rated operational currents and duty cycles

At AC-4 duty (frequent starting/plugging), the maximum operating rate is 250 switching cycles per hour. For main contact durability, the mechanical life is typically 10 million operations. Rated operational current reaches 96 A at 480 V and 77 A at 600 V, making it suitable for motor loads up to 20 hp at 230 V.

Frequently asked questions

What are the key dimensional constraints for panel integration?

The contactor measures 70 mm wide by 152 mm deep by 140 mm high.

MPN
3RT2046-1XB40-0LA2