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Siemens 3RT6026-1BM40 — Contactors

Siemens 3RT6026-1BM40 SIRIUS Power Contactor, 23 kW at 400 V

MPN3RT6026-1BM40

Siemens SIRIUS power contactor, size S0, 3RT6026-1BM40, 23 kW at 400 V AC-3, screw-type terminals, 45 mm width, 107 mm depth.

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

3RT6026-1BM40 — Identification
ParameterValue
Contactor frame sizeS0
3RT6026-1BM40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V10 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT6026-1BM40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT6026-1BM40 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6026-1BM40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 100 A
Short-circuit coordination type 2, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 35 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT6026-1BM40 — 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 DIN rail according to DIN EN 50022
Side-by-side mountingYes
3RT6026-1BM40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6026-1BM40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6026-1BM40 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm

Product details

The Siemens 3RT6026-1BM40 is a SIRIUS power contactor in size S0, rated for motor switching up to 23 kW at 400 V AC-3 (cite:,). It handles 13.3 kW at 230 V and 40 kW at 690 V under the same AC-3 duty (cite:,). The AC-3 maximum switching frequency is 750 cycles per hour, with a mechanical life of 10 million operations typical (cite:,). For resistive loads (AC-1) it can switch up to 1,000 cycles per hour (cite:).

Width is 45 mm, depth 107 mm, height 85 mm — fits a standard S0 footprint (cite:,). Side-by-side mounting is allowed (cite:).

Terminals and wiring

Main current circuit and auxiliary/control circuit both use screw-type terminals (cite:,). Accepts 2x (0.5...1.5 mm²) solid or stranded, or 2x (0.75...2.5 mm²) (cite:). For AWG: 2x (16...12) or 2x (14...8) (cite:). Minimum cross-section at 40 °C and 60 °C is 10 mm² (cite:,).

Frequently asked questions

Where can I buy 3RT6026-1BM40 and how do I get a price?

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

Will 3RT6026-1BM40 drop into a panel specified for 3RT6026-1AN20?

Both are size S0 contactors with the same 45 mm width, 107 mm depth, and 85 mm height, and both mount on 35 mm DIN rail (cite:,). The 1BM40 variant uses a 220 V coil (cite:), while the 1AN20 uses a different coil voltage — verify coil voltage compatibility before substitution.

What is the depth of 3RT6026-1BM40?

The depth is 107 mm (cite:).

What is the width of 3RT6026-1BM40?

The width is 45 mm (cite:).

MPN
3RT6026-1BM40