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Siemens 3RT1266-6AP36-0KA1 — Contactors

Siemens 3RT1266-6AP36-0KA1 SIRIUS Vacuum Contactor, Size S10

MPN3RT1266-6AP36-0KA1

Siemens SIRIUS vacuum contactor, Size S10, 220-240 VAC coil, screw-type terminals, auxiliary switch included, 206 mm depth.

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

3RT1266-6AP36-0KA1 — Identification
ParameterValue
Contactor frame sizeS10
3RT1266-6AP36-0KA1 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V280 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
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
3RT1266-6AP36-0KA1 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.9
Rated value @ 50 Hz220 ... 240 V
3RT1266-6AP36-0KA1 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1266-6AP36-0KA1 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 500 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 500 A (690 V, 100 kA), aM: 400 A (690 V, 50 kA), BS88: 450 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1266-6AP36-0KA1 — Connection & Mounting
ParameterValue
Main circuit connectionConnection bar
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, solid or stranded2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew fixing
Side-by-side mountingYes
3RT1266-6AP36-0KA1 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1266-6AP36-0KA1 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1266-6AP36-0KA1 — Mechanical
ParameterValue
Width145 mm
Height210 mm
Depth206 mm
3RT1266-6AP36-0KA1 — Specifications
ParameterValue
At AC40 ... 80 ms

Product details

The magnet coil is rated 220-240 VAC and terminates at screw-type terminals, with an auxiliary switch built in for status feedback or interlocking.

Fastened via screw fixing through a single 11 mm hole, the contactor accepts stranded cable from 70 to 240 mm² on the main power path. Mounting position allows +/-22.5° rotation on a vertical surface, forward/backward tilt of +/-22.5°, or standing on a horizontal surface — useful when fitting into tight cabinet layouts.

The integrated auxiliary switch is rated: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V.

Frequently asked questions

What are the key dimensions of this contactor?

Height 210 mm, width 145 mm, depth 206 mm.

What wire sizes does the main power path accept?

Stranded cable from 70 to 240 mm².

MPN
3RT1266-6AP36-0KA1