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Siemens 3RT1026-1BM40 — Contactors

Siemens 3RT1026-1BM40 SIRIUS S0 Power Contactor, 220 VAC Coi

MPN3RT1026-1BM40

Siemens SIRIUS S0 power contactor, 3RT1026-1BM40, 220 VAC coil, 11 kW AC-2 at 400 V, screw terminals, snap-on DIN rail mount.

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

3RT1026-1BM40 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-1BM40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
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
3RT1026-1BM40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1026-1BM40 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-1BM40 — 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
3RT1026-1BM40 — 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), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, solid or stranded2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 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 standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1026-1BM40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-1BM40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Installation altitude, max.2 000 m
3RT1026-1BM40 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth101 mm

Product details

Coil and Contact Ratings

The 3RT1026-1BM40: The magnet coil draws 5.4 W DC for both closing and holding, so the control transformer can be sized for a steady load. Contact ratings span the voltage range: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, 3 A at 400 V, and 11 kW at both 500 V and 690 V. The auxiliary contact circuit is rated for a maximum operational current of 10 A in AC-12 duty.

Fault Coordination and Environmental Limits

Main circuit terminals accept solid or stranded conductors: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm². Auxiliary terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). AWG equivalents are provided for both. Side-by-side mounting is permitted, so multiple contactors can pack tightly on the rail.

Frequently asked questions

What is the 3RT1026-1BM40 used for?

It is a SIRIUS S0 power contactor used for switching motor loads and resistive loads in industrial control panels. The AC-2 rating covers slip-ring motor starting, and the AC-4 rating covers plugging and inching duty.

What are the key specifications of the 3RT1026-1BM40?

Key specs include a 220 VAC coil, 11 kW AC-2 at 400 V, 15.5 A AC-4 at 400 V, screw terminals, snap-on 35 mm DIN rail mount, and operating temperature range of -25 to +60 °C.

How do I get current pricing and availability for the 3RT1026-1BM40?

Submit an RFQ through this listing. Pricing and availability are confirmed at quote time through independent distribution channels.

Will the 3RT1026-1BM40 drop into a panel specified around the 3RT1026-1AB00?

Both are SIRIUS S0-frame contactors sharing the same footprint, DIN rail mount, and screw terminal layout. The primary difference is the coil voltage: the 1BM40 uses a 220 VAC coil, while the 1AB00 uses a different coil voltage. Verify the control voltage before substitution.

What compliance documentation does Siemens provide for the 3RT1026-1BM40?

The product carries a RoHS compliance date of July 1, 2006, indicating it meets EU RoHS requirements. Standard Siemens documentation includes the declaration of conformity and CE marking.

MPN
3RT1026-1BM40