Skip to main content
Log in
Siemens 3RT2326-1BM40 — Contactors

Siemens 3RT2326-1BM40 SIRIUS Contactor, S0 Size, 24 VDC Coil

MPN3RT2326-1BM40
Active

Siemens SIRIUS S0 contactor, 3RT2326-1BM40, screw-type coil terminals, 24 VDC coil, snap-on DIN rail mounting, auxiliary switch included.

Siemens 3RT2326-1BM40 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

3RT2326-1BM40 — Identification
ParameterValue
Contactor frame sizeS0
3RT2326-1BM40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V7.5 kW
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2326-1BM40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2326-1BM40 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2326-1BM40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 63 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 20 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (690 V, 1 kA)
3RT2326-1BM40 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
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
3RT2326-1BM40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2326-1BM40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2326-1BM40 — Mechanical
ParameterValue
Width60 mm
Height85 mm
Depth107 mm

Product details

SIRIUS S0 Contactor, 24 VDC Coil

Auxiliary Contact Ratings Across DC Voltages

The built-in auxiliary switch carries DC ratings that vary significantly by voltage: 10 A at 24 V and 230 V, 6 A at 60 V, 3 A at 400 V, 2 A at 48 V and 500 V, 1 A at 110 V and 690 V, 0.9 A at 125 V, 0.3 A at 220 V, and 0.1 A at 600 V. This spread reflects the arc-extinction limits at higher DC voltages — the 0.1 A at 600 V rating is the practical ceiling for this switch block.

The S0 frame measures 85 mm high by 60 mm wide by 107 mm deep.

Terminal Specifications

Main contact terminals accept solid or stranded wire: 1 to 10 mm² stranded, or 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²) solid. The coil uses screw-type terminals. Mechanical life is typically 10,000,000 operations. Arcing time is 10 ms.

Frequently asked questions

What wire sizes does the main contact terminal accept?

Stranded 1 to 10 mm², or solid 2x (0.5 to 1.5 mm²) and 2x (0.75 to 2.5 mm²).

Where can I buy 3RT2326-1BM40?

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

MPN
3RT2326-1BM40