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Siemens 3RT1026-3BM40 — Contactors

Siemens SIRIUS 3RT1026-3BM40 Power Contactor, S0 Size, 11 kW

MPN3RT1026-3BM40

Siemens SIRIUS power contactor, 3RT1026-3BM40, S0 frame, 11 kW at 400 V AC-2, screw-type terminals, 45 mm width, DIN EN 50022 snap-on mounting.

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

3RT1026-3BM40 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-3BM40 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V11 kW
Rated value @ 690 V11 kW
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
3RT1026-3BM40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1026-3BM40 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-3BM40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 100 A
Short-circuit coordination type 2, fusefuse gL/gG: 35 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1026-3BM40 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Side-by-side mountingYes
3RT1026-3BM40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-3BM40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-3BM40 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth100 mm

Product details

In AC-4 duty (inching, reversing under load), it switches 15.5 A at 400 V. The AC-12 rating of 10 A covers resistive loads.

Main circuit terminals are screw-type, accepting 2x (1 to 2.5 mm²) solid/stranded, 2x (2.5 to 6 mm²), or up to 2x 10 mm². AWG equivalents: 2x (16 to 12), 2x (14 to 10), or 1x 8. The auxiliary contact terminals accept 2x (0.25 to 2.5 mm²). For Type 1 coordination (no damage under short circuit), use a gL/gG fuse rated 100 A. For Type 2 coordination (limited damage, device remains usable), the fuse drops to 35 A.

Frequently asked questions

What are the key ratings for this contactor?

AC-2 motor power: 11 kW at 400 V. AC-4 switching current: 15.5 A at 400 V. AC-12 resistive current: 10 A. Coil draw: 5.4 W DC. Operating temperature: -25 to +60 °C.

Does it mount on standard DIN rail?

Yes, screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022. Panel width is 45 mm.

What wire sizes does the main circuit accept?

Screw terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or up to 2x 10 mm² solid/stranded. AWG: 2x (16 to 12), 2x (14 to 10), or 1x 8.

MPN
3RT1026-3BM40