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Siemens 3RT2326-1BG40 — Contactors

Siemens 3RT2326-1BG40 SIRIUS Contactor, DC Coil 125 V, S0 Si

MPN3RT2326-1BG40
Active

Siemens SIRIUS contactor, S0 size, DC-operated coil 125 V, screw-type terminals, rated switching currents up to 10 A at 24 V, width 60 mm.

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

3RT2326-1BG40 — Identification
ParameterValue
Contactor frame sizeS0
3RT2326-1BG40 — 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
3RT2326-1BG40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2326-1BG40 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2326-1BG40 — 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)
3RT2326-1BG40 — 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
3RT2326-1BG40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2326-1BG40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2326-1BG40 — Mechanical
ParameterValue
Width60 mm
Height85 mm
Depth107 mm

Product details

It carries a DC coil rated at 125 V with screw-type terminals, and the main contacts are rated for switching currents up to 10 A at 24 V, 10 A at 230 V, and 1 A at 690 V, among other voltage-specific ratings. The contactor snaps onto a 35 mm DIN rail per DIN EN 60715 or can be screw-mounted, and its compact footprint (85 mm high, 60 mm wide, 107 mm deep) fits tight enclosure layouts.

The contactor's switching current varies significantly with the load voltage and type. At 24 V DC it handles 10 A, at 48 V it drops to 2 A, and at 125 V it handles 0.9 A. For AC loads at 230 V it switches 10 A, at 400 V it handles 3 A, and at 690 V it manages 1 A. These ratings reflect the contactor's ability to interrupt the load arc at different voltages — pick the rating that matches your actual operating voltage, not the coil voltage. The auxiliary switch is included, with its own current ratings across the same voltage range.

For main contacts, accept stranded wire from 1 to 10 mm²; auxiliary contacts accept solid or stranded wire in two sizes: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). Keep the side clearance at 6 mm and vertical clearance at 10 mm for proper heat dissipation and arc quenching.

Frequently asked questions

What are the key switching current ratings for 3RT2326-1BG40?

The contactor switches 10 A at 24 V DC, 2 A at 48 V DC, 6 A at 60 V DC, 1 A at 110 V DC, 0.9 A at 125 V DC, 0.3 A at 220 V DC, 10 A at 230 V AC, 3 A at 400 V AC, 2 A at 500 V AC, 0.1 A at 600 V AC, and 1 A at 690 V AC.

Where can I buy 3RT2326-1BG40 and what is the lead time?

The 3RT2326-1BG40 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price.

Will 3RT2326-1BG40 drop into a panel specified for 3RT2526-1BG40 without rewiring?

The 3RT2326-1BG40 and 3RT2526-1BG40 are both SIRIUS S0-size contactors with the same mounting footprint and terminal layout, so they are mechanically interchangeable. However, verify the coil voltage and auxiliary contact configuration match your control circuit — the 3RT2326-1BG40 uses a 125 V DC coil with screw terminals, while the 3RT2526-1BG40 may differ.

MPN
3RT2326-1BG40