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Siemens 3RT1026-3AL26 — Contactors

Siemens 3RT1026-3AL26 SIRIUS Power Contactor, 11 kW AC-2 at

MPN3RT1026-3AL26

Siemens SIRIUS power contactor, 3RT1026-3AL26, S0 frame, 11 kW at 400 V AC-2, 15.5 A AC-4, screw terminals, 50/60 Hz, current production.

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

3RT1026-3AL26 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-3AL26 — 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
3RT1026-3AL26 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RT1026-3AL26 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-3AL26 — 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
3RT1026-3AL26 — 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
3RT1026-3AL26 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-3AL26 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-3AL26 — Mechanical
ParameterValue
Width65 mm
Height85 mm
Depth91 mm

Product details

The Siemens 3RT1026-3AL26 is a SIRIUS power contactor in the S0 frame size, rated for 11 kW at 400 V AC-2 duty and 15.5 A at 400 V AC-4. The coil accepts 50/60 Hz at a rated voltage of 230 V (50 Hz) or 230 V (60 Hz).

The S0 frame measures 65 mm wide by 85 mm tall by 91 mm deep — a standard footprint for this class. Terminals accept 2x (0.25... 2.5 mm²) solid or stranded, up to 2x 10 mm², or 2x (16... 12) AWG.

Duty ratings and coordination

AC-4 at 400 V is 15.5 A, for plugging or inching duty. For type 2 coordination (no weld risk) use a 35 A gL/gG fuse; type 1 coordination allows a 100 A fuse. Auxiliary contacts: 2 normally open instantaneous contacts rated 10 A at 24 V, 6 A at 230 V, 3 A at 400 V.

The SIRIUS series carries IEC and UL certifications as standard. The contactor is rated for pollution degree 3, altitude up to 2 000 m, and operating ambient -25 to +60 °C.

Frequently asked questions

What is the depth of 3RT1026-3AL26?

The depth is 91 mm, with a width of 65 mm and height of 85 mm — S0 frame size.

What wire sizes does the main terminal accept?

Screw terminals accept 2x (0.25... 2.5 mm²) solid or stranded, up to 2x 10 mm², or 2x (16... 12) AWG.

How do I get pricing and availability for 3RT1026-3AL26?

Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time through independent distribution channels.

Will 3RT1026-3AL26 drop into a panel designed for 3RT1023-1AL20?

Both are S0 frame size (65 x 85 x 91 mm) and mount on 35 mm DIN rail, so the mechanical footprint is identical. Verify coil voltage and auxiliary contact configuration against your BOM before swapping.

MPN
3RT1026-3AL26