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Siemens 3RT1026-3AF04-ZW95 — Contactors

Siemens 3RT1026-3AF04-ZW95 SIRIUS Power Contactor, S0, 11 kW

MPN3RT1026-3AF04-ZW95

Siemens SIRIUS 3RT1026-3AF04-ZW95 power contactor, size S0, 3 NO main contacts, 11 kW at 400 V AC-3, screw terminals, 45 mm width, for DIN rail 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

3RT1026-3AF04-ZW95 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-3AF04-ZW95 — 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
3RT1026-3AF04-ZW95 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1026-3AF04-ZW95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-3AF04-ZW95 — 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
3RT1026-3AF04-ZW95 — 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
3RT1026-3AF04-ZW95 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-3AF04-ZW95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-3AF04-ZW95 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

The contactor carries 3 NO main contacts and no NC main contacts, with two instantaneous auxiliary contacts available for feedback or interlock wiring.

Rated at 11 kW at 400 V AC-3 and also 11 kW at 690 V AC-3, this contactor handles standard three-phase induction motors up to that power. The AC-4 rating of 15.5 A at 400 V covers reversing or inching duty where the contactor makes and breaks stalled rotor current — a tougher thermal cycle than AC-3. For type 2 coordination (no weld risk on fault), use a 35 A gL/gG fuse upstream. The contactor's mechanical life is rated at 10,000,000 operations typical, and the operating temperature range is -25 to +60 °C. The front face carries IP20 finger protection; the terminals themselves are IP00, so the panel enclosure must provide the environmental seal.

Mounting and integration into your panel

The auxiliary contact block (2 instantaneous contacts) shares the same coil suppression as the main contactor — verify free-wheel diode polarity if you're adding a DC suppressor across the coil terminals.

No substitute or second-source cross-reference is required at this time.

Frequently asked questions

What is the closest functional second-source to the 3RT1026-3AF04-ZW95?

The 3RT1034-1AN60-1AA0 is a larger-frame SIRIUS contactor and does not drop into the same S0 footprint. The 3RT1026-3AF04-ZW95 is the S0-size variant for 11 kW at 400 V; the 3RT1034 is a physically larger unit for higher current. Stick with the S0 frame if your panel is already drilled for 45 mm wide contactors.

What are the key dimensions of the 3RT1026-3AF04-ZW95?

Width is 45 mm, height is 85 mm, and depth is 140 mm. This is the standard S0 frame size for Siemens SIRIUS contactors.

What compliance documentation is available for this contactor?

The product carries a reference code per DIN EN 81346-2 (Q for power switching equipment). The pollution degree 3 rating and IP20 front protection indicate compliance with IEC/EN 60947 series standards. Specific RoHS, REACH, or UL documentation should be requested at time of RFQ, as the evidence does not list those certifications directly.

MPN
3RT1026-3AF04-ZW95