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Siemens 3RT6026-1AL20 — Contactors

Siemens 3RT6026-1AL20 SIRIUS Power Contactor, S0, 23 kW at 4

MPN3RT6026-1AL20

Siemens SIRIUS 3RT6026-1AL20 power contactor, size S0, 45 mm wide, screw terminals, 23 kW at 400 V 60°C.

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

3RT6026-1AL20 — Identification
ParameterValue
Contactor frame sizeS0
3RT6026-1AL20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V10 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT6026-1AL20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz230 V
3RT6026-1AL20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6026-1AL20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 100 A
Short-circuit coordination type 2, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 35 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT6026-1AL20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 50022
Side-by-side mountingYes
3RT6026-1AL20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6026-1AL20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6026-1AL20 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth97 mm
3RT6026-1AL20 — Specifications
ParameterValue
At AC5 000 1/h

Product details

Rated for AC-3 duty up to 690 V, this contactor delivers 23 kW at 400 V and 40 kW at 690 V, both at a 60 °C ambient — the derated figures that govern real panel installations.

The headline motor ratings at 60 °C are the ones that matter for a panel build: 13.3 kW at 230 V, 23 kW at 400 V, and 40 kW at 690 V. These are not the idealised 40 °C numbers — they reflect the actual current-carrying capacity when the contactor is inside an enclosure with other heat sources. Mechanical endurance is rated at 10,000,000 operating cycles typical, with AC-3 electrical life at 750 cycles per hour maximum. For high-duty applications like frequent reversing or inching, the AC-4 maximum drops to 250 cycles per hour — that's the figure to size against if your load profile includes plugging or jogging. The coil draws 6 A at 24 V rated value, 1 A at 110 V, and 0.3 A at 220 V. These are the inrush figures for sizing control transformers and power supplies — the holding current will be lower, but the pick-up is what stresses the circuit.

Terminal capacity for the main circuit accepts 2 x (0.5 to 1.5 mm²) or 2 x (0.75 to 2.5 mm²) solid or stranded wire. Minimum permissible cross-section at both 40 °C and 60 °C is 10 mm² — that's the smallest wire that carries the full rated current without exceeding temperature limits.

Frequently asked questions

What are the key motor ratings for this contactor?

At 60 °C ambient, the contactor is rated for 13.3 kW at 230 V, 23 kW at 400 V, and 40 kW at 690 V, all under AC-3 duty. The maximum AC-3 voltage is 690 V.

What is the physical size of the 3RT6026-1AL20?

It is a size S0 contactor with dimensions of 45 mm width, 85 mm height, and 97 mm depth.

Does the 3RT6026-1AL20 mount on a standard DIN rail?

Yes, it uses screw and snap-on mounting onto a 35 mm DIN rail per DIN EN 50022. Side-by-side mounting is permitted without derating.

What compliance documentation is available for this contactor?

The part carries a substance prohibitance date of 05/01/2012, indicating RoHS compliance. As a Siemens SIRIUS product, it is designed to meet IEC and UL standards typical for industrial control equipment.

MPN
3RT6026-1AL20