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Siemens 3RT1066-6AV36 — Contactors

Siemens SIRIUS 3RT1066-6AV36 Power Contactor, Size S10, 202

MPN3RT1066-6AV36
Active

Siemens SIRIUS power contactor, order code 3RT1066-6AV36, Size S10, screw fixing, 210 x 145 x 202 mm (H x W x D).

$577.85Ref. price · indicative, final on quote
Siemens 3RT1066-6AV36 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT1066-6AV36 — Identification
ParameterValue
Contactor frame sizeS10
3RT1066-6AV36 — 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
3RT1066-6AV36 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.9
Rated value @ 50 Hz380 ... 420 V
3RT1066-6AV36 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1066-6AV36 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 500 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 400 A (690 V, 100 kA), aM: 315 A (690 V, 50 kA), BS88: 400 A (415 V, 50 kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT1066-6AV36 — 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
3RT1066-6AV36 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1066-6AV36 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1066-6AV36 — Mechanical
ParameterValue
Width145 mm
Height210 mm
Depth202 mm
3RT1066-6AV36 — Specifications
ParameterValue
At AC40 ... 80 ms

Product details

Main power wiring accepts stranded conductors from 70 mm² up to 240 mm²; the magnet coil uses screw-type terminals with a range of 0.5–4 mm² solid or stranded.

Switching duty and cycle rates

Maximum switching frequency depends on the load type: 750 ops/h for resistive (AC-1), 500 ops/h for AC-3 motor duty, 250 ops/h for AC-2 slip-ring motors, and 130 ops/h for AC-4 plugging/reversing. The AC-3e rating also allows 500 ops/h.

Auxiliary contacts and coil data

The coil's rated control voltage is 380–420 V AC; pickup is at 80% of rated voltage (initial value 0.8). Dropout is at 1.1 times the full-scale value. Auxiliary contact ratings: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V. Mechanical life of the contactor is typically 10,000,000 operations.

Overall dimensions: 210 mm height, 145 mm width, 202 mm depth. Mounting uses a single 11 mm diameter hole.

Frequently asked questions

Where can I buy 3RT1066-6AV36?

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

What are the key ratings of 3RT1066-6AV36?

It is a Size S10 power contactor rated for AC-3 motor switching at 500 ops/h, with a 380–420 V AC coil. Dimensions are 210 x 145 x 202 mm.

What compliance documentation is available for this contactor?

As a Siemens SIRIUS product, standard declarations (CE, RoHS, REACH, UL, IEC) are available from the manufacturer's documentation portal.

MPN
3RT1066-6AV36