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Siemens 3RT1026-3AL20-ZX95 — Contactors

Siemens 3RT1026-3AL20-ZX95 SIRIUS S0 Power Contactor, 11 kW

MPN3RT1026-3AL20-ZX95

Siemens SIRIUS S0 power contactor, 3RT1026-3AL20-ZX95, 11 kW AC-2 at 400 V, 15.5 A AC-4, screw terminals, 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

3RT1026-3AL20-ZX95 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-3AL20-ZX95 — 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
3RT1026-3AL20-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RT1026-3AL20-ZX95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-3AL20-ZX95 — 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
3RT1026-3AL20-ZX95 — 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
3RT1026-3AL20-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-3AL20-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-3AL20-ZX95 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth90 mm

Product details

The Siemens 3RT1026-3AL20-ZX95 is a SIRIUS S0-frame power contactor, rated 11 kW at 400 V in AC-2 duty for slip-ring motor starting, and 15.5 A in AC-4 for plugging or inching.

AC-4 at 15.5 A handles the higher stress of reversing or jogging duty, where the contactor interrupts locked-rotor current. For DC loads, the contactor is rated 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — these are the make/break limits for the DC arc, not continuous carry.

The S0 frame measures 45 mm wide, 85 mm high, and 90 mm deep, fitting a standard 45 mm slot on the DIN rail.

For Type 2 coordination (contactor remains operational after a fault), the fuse drops to gL/gG 35 A.

Frequently asked questions

Where can I buy 3RT1026-3AL20-ZX95 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What does the AC-2 rating of 11 kW at 400 V mean for motor switching?

AC-2 duty applies to slip-ring motors where the contactor makes and breaks the stator current at low slip — typical for crane and hoist applications. The 11 kW rating at 400 V defines the maximum motor power the contactor can switch under those conditions.

What wire sizes does the 3RT1026-3AL20-ZX95 accept?

The screw terminals accept 2x (0.25 to 2.5 mm²) solid or stranded, 2x (1 to 2.5 mm²) and 2x (2.5 to 6 mm²) for larger conductors, with a maximum of 2x 10 mm². AWG equivalents are 2x (16 to 12) and 2x (14 to 10), with a maximum of 1x AWG 8.

MPN
3RT1026-3AL20-ZX95