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Siemens 3RT1026-3AF06 — Contactors

Siemens 3RT1026-3AF06 SIRIUS Power Contactor, 11 kW at 500 V

MPN3RT1026-3AF06

Siemens SIRIUS 3RT1026-3AF06 power contactor, S0 frame, 3 NO main contacts, 11 kW at 500 V AC-3, screw terminals, IP20 front, 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

3RT1026-3AF06 — Identification
ParameterValue
Contactor frame sizeS0
3RT1026-3AF06 — 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
3RT1026-3AF06 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1026-3AF06 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1026-3AF06 — 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
3RT1026-3AF06 — 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
3RT1026-3AF06 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1026-3AF06 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1026-3AF06 — Mechanical
ParameterValue
Width65 mm
Height85 mm
Depth91 mm

Product details

SIRIUS 3RT1026-3AF06 — S0 Power Contactor for Motor Loads

It carries 3 normally-open main contacts and is rated for 11 kW at 500 V under AC-3 duty, which is the standard category for starting and stopping squirrel-cage motors during running — the rating that governs real-world motor switching, not the higher resistive-load figure. For the more demanding AC-4 category (plugging, inching, reversing), it is rated at 15.5 A at 400 V, so it handles frequent counter-torque starts within that current envelope. Main circuit connections use screw-type terminals, accepting solid or stranded copper: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or a single conductor up to 10 mm². AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8.

Environmental & Installation Limits

The auxiliary contact block (not included in this base unit) has its own ratings: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V — these are the switching capacities for the control circuit, not the main power path.

Frequently asked questions

What are the key motor ratings for this contactor?

Under AC-3 duty (standard motor starting), it is rated at 11 kW at 500 V and 11 kW at 690 V. Under AC-4 duty (plugging, inching, reversing), it is rated at 15.5 A at 400 V. The AC-2 rating for slip-ring motors is also 11 kW at 400 V.

What is the physical size and mounting method?

The S0 frame measures 65 mm wide, 85 mm tall, and 91 mm deep. It mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 50022. Side-by-side mounting is allowed with 6 mm clearance.

What wire sizes does the screw terminal accept?

Main circuit screw terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or a single conductor up to 10 mm². AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8.

What short-circuit protection is required?

For Type 2 coordination (no damage to the contactor), use a gL/gG fuse rated at 35 A. For Type 1 coordination (contactor may need replacement after a fault), a 100 A gL/gG fuse is permitted.

MPN
3RT1026-3AF06