Skip to main content
Log in
Siemens 3RT2046-1NB30 — Contactors

Siemens 3RT2046-1NB30 SIRIUS Power Contactor, 20-33 VDC Coil

MPN3RT2046-1NB30
Active

Siemens SIRIUS, power contactor, 3RT2046-1NB30, S3 size, 20-33 VDC coil, screw-type terminals, 152 mm depth, 70 mm width, 140 mm height.

$223.52Ref. price · indicative, final on quote
Siemens 3RT2046-1NB30 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2046-1NB30 — Identification
ParameterValue
Contactor frame sizeS3
3RT2046-1NB30 — 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
3RT2046-1NB30 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz3.5 VA
Rated value @ 50 Hz20 ... 33 V
3RT2046-1NB30 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2046-1NB30 — 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 — 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 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2046-1NB30 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2046-1NB30 — Mechanical
ParameterValue
Width70 mm
Height140 mm
Depth152 mm
3RT2046-1NB30 — Specifications
ParameterValue
At AC38 ... 57 ms

Product details

The coil pulls 20-33 VDC at 3.5 VA (50/60 Hz), and the inrush peak hits 6.5 A — a number worth checking if your 24 VDC supply is shared with several contactors.

The S3 frame measures 152 mm deep, 70 mm wide, 140 mm tall. Wire sizes run 2.5-16 mm² solid or 6-70 mm² stranded for the power circuit; auxiliary contacts accept 2x (0.5-1.5 mm²) or 2x (0.75-2.5 mm²) solid or stranded. Switching frequency depends on duty: AC-1 (resistive) maxes at 900 ops/hour, AC-3 (motor start/run) at 850 ops/hour, AC-4 (plugging/inching) at 250 ops/hour. The AC-3e rating matches the standard AC-3 at 850 ops/hour. Arcing time runs 10-20 ms, pickup and dropout both 38-57 ms.

Frequently asked questions

What is the depth of 3RT2046-1NB30?

The depth is 152 mm, with 70 mm width and 140 mm height. Clearance requirements: 20 mm forward, 10 mm at side, 10 mm upward, 10 mm downward.

What wire sizes does 3RT2046-1NB30 accept?

Power circuit: solid 2.5-16 mm², stranded 6-70 mm². Auxiliary contacts: 2x (0.5-1.5 mm²) or 2x (0.75-2.5 mm²) solid or stranded.

Where can I buy 3RT2046-1NB30 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

Will 3RT2046-1NB30 drop into a panel spec'd around 3RT1054-1AB36?

Both are SIRIUS S3 frame contactors with the same DIN-rail footprint and similar dimensions. The 3RT2046-1NB30 uses a 20-33 VDC coil; verify your control voltage matches. The 3RT1054-1AB36 uses a different coil voltage (not listed here). Panel cutouts and mounting holes are identical, but always confirm the coil rating and auxiliary contact configuration before swapping.

MPN
3RT2046-1NB30