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Siemens 3RT1026-1BD44 — Contactors

Siemens 3RT1026-1BD44 SIRIUS Power Contactor, S0, 24 VDC, 11

MPN3RT1026-1BD44

Siemens SIRIUS, power contactor, size S0, 3RT1026-1BD44, 24 VDC coil, 11 kW at 400 V AC-2, screw terminals, 45 mm width, IP20 front.

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

3RT1026-1BD44 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-1BD44 — 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
3RT1026-1BD44 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1026-1BD44 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-1BD44 — 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
3RT1026-1BD44 — Connection & Mounting
ParameterValue
Main 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, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1026-1BD44 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-1BD44 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-1BD44 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth150 mm

Product details

Integrator's note on the 3RT1026-1BD44

The Siemens 3RT1026-1BD44 is a SIRIUS power contactor in the S0 frame, sized for motor switching up to 11 kW at 400 V in AC-2 duty (slip-ring motors, wound-rotor applications) and rated 15.5 A in AC-4 duty for reversing or inching service. The DC coil draws 5.4 W for both pick-up and hold, so there is no inrush spike to size the control transformer around.

Main current circuit terminals are screw-type, accepting 2x (1 to 2.5 mm²) stranded or 2x (2.5 to 6 mm²) solid, with a maximum of 2x 10 mm² per clamp. Auxiliary contact terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). AWG equivalents are 2x (16 to 12) and 2x (14 to 10) for main contacts.

MPN
3RT1026-1BD44