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Siemens 3RT2046-1NB30-0UA0 — Contactors

Siemens 3RT2046-1NB30-0UA0 SIRIUS Power Contactor, S3, 152 m

MPN3RT2046-1NB30-0UA0
Active

Siemens SIRIUS power contactor, size S3, 3RT2046-1NB30-0UA0, screw-type coil terminals, 152 mm depth, 70 mm width.

$223.52Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2046-1NB30-0UA0 — Identification
ParameterValue
Contactor frame sizeS3
3RT2046-1NB30-0UA0 — 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 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2046-1NB30-0UA0 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz3.5 VA
Rated value @ 50 Hz20 ... 33 V
3RT2046-1NB30-0UA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2046-1NB30-0UA0 — 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)
3RT2046-1NB30-0UA0 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2.5 ... 16 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
3RT2046-1NB30-0UA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2046-1NB30-0UA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2046-1NB30-0UA0 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm
3RT2046-1NB30-0UA0 — Specifications
ParameterValue
At AC38 ... 57 ms

Product details

It mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, with a 70 mm width and 152 mm depth — the S3 footprint fits standard distribution enclosures alongside other SIRIUS gear.

The coil is rated 20–33 V, with an inrush peak of 6.5 A and a holding draw of 3.5 VA at both 50 and 60 Hz. That coil voltage range covers standard 24 VDC control supplies with margin — expect pickup at 0.8× rated value (about 16 V) and dropout below that, typical for DC-operated contactors. Main contact wiring accepts solid conductors 2.5–16 mm² or stranded up to 70 mm², so it handles motor feeders up to about 25–30 kW without needing a separate terminal adapter.

Integration and mounting notes

The screw-type coil terminals accept 2×(0.5–1.5 mm²) or 2×(0.75–2.5 mm²) solid or stranded — standard control wiring sizes.

Frequently asked questions

What is the depth of the 3RT2046-1NB30-0UA0?

152 mm depth, with a width of 70 mm and height of 140 mm.

What wire sizes does the main contact accept?

Solid conductors 2.5–16 mm²; stranded conductors 6–70 mm².

Where can I buy 3RT2046-1NB30-0UA0?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
3RT2046-1NB30-0UA0