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Siemens 3RT1026-3AN20-1AA0 — Contactors

Siemens 3RT1026-3AN20-1AA0 SIRIUS Power Contactor, 11 kW AC-

MPN3RT1026-3AN20-1AA0

Siemens SIRIUS, power contactor, size S0, 3RT1026-3AN20-1AA0, 11 kW at 400 V AC-2, 15.5 A AC-4, screw terminals, snap-on DIN rail.

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

3RT1026-3AN20-1AA0 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-3AN20-1AA0 — 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
3RT1026-3AN20-1AA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz220 V
3RT1026-3AN20-1AA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-3AN20-1AA0 — 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
3RT1026-3AN20-1AA0 — 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
3RT1026-3AN20-1AA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-3AN20-1AA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-3AN20-1AA0 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

The Siemens SIRIUS 3RT1026-3AN20-1AA0 is a size S0 power contactor, rated for 11 kW at 400 V in AC-2 duty (slip-ring motor starting) and 15.5 A in AC-4 duty (plugging/reversing).

Dimensions: 45 mm wide, 85 mm high, 91 mm deep — fits standard S0 contactor footprint in any control panel. Degree of pollution 3 environment rated. IP20 on the front, IP00 at the terminals — install in a suitable enclosure for touch protection.

Motor duty and coordination

Rated for 11 kW at 400 V in AC-2 duty class (slip-ring motors) and 15.5 A in AC-4 duty (plugging, inching, reversing). Coil operates at 50/60 Hz with an operating range of 0.8...1.1 x rated voltage at 50 Hz and 0.85...1.1 at 60 Hz.

Built-in auxiliary contact block rated: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. Mechanical life typical 10 million operations.

Frequently asked questions

What are the key motor ratings for 3RT1026-3AN20-1AA0?

11 kW at 400 V in AC-2 duty and 15.5 A in AC-4 duty. Coil voltage is 220 V at 50 Hz and 220 V at 60 Hz.

Will 3RT1026-3AN20-1AA0 drop into a panel specified for 3RT1023-1AL20?

Both are size S0 contactors on a 45 mm wide DIN-rail footprint, so physical fit is the same. Verify the coil voltage and rating match your circuit — the 3RT1026-3AN20-1AA0 uses a 220 V 50/60 Hz coil.

What is the depth of 3RT1026-3AN20-1AA0?

91 mm deep.

What wire sizes does the main circuit accept?

Screw terminals accept 2x (0.25...2.5 mm²) solid, 2x (1...2.5 mm²) or 2x (2.5...6 mm²) stranded, and up to 2x 10 mm² maximum. AWG equivalents: 2x (16...12), 2x (14...10), 1x 8.

How do I get current pricing and availability for 3RT1026-3AN20-1AA0?

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

MPN
3RT1026-3AN20-1AA0