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Siemens 3RT1035-1AU00 — Contactors

Siemens 3RT1035-1AU00 SIRIUS Power Contactor, Size S2, 55 mm

MPN3RT1035-1AU00

Siemens SIRIUS power contactor, size S2, 3RT1035-1AU00, 55 mm width, 115 mm depth, screw-type terminals, 35 mm DIN rail mounting, IP20 front.

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

3RT1035-1AU00 — Identification
ParameterValue
Contactor frame sizeS2
3RT1035-1AU00 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V35 A
Rated value @ 400 V3 A
Rated value @ 500 V22 kW
Rated value @ 690 V11.4 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
3RT1035-1AU00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz240 V
3RT1035-1AU00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1035-1AU00 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 125 A
Short-circuit coordination type 2, fusefuse gL/gG: 63 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1035-1AU00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
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 (0.75 ... 16 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 standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1035-1AU00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1035-1AU00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1035-1AU00 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1035-1AU00 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

At 690 V it still delivers 11.4 kW, so it suits 690 V line supplies common in heavy industrial installations. The rated frequency is 50 Hz, with an operating range of 0.8 to 1.1 times nominal — expect reliable pick-up even on a sagging line. Mechanical life is typical 10,000,000 operations. Maximum switching rates: 1,200 cycles/hour in AC-1, 1,000 cycles/hour in AC-3. The screw-type terminals on the main current circuit accept solid conductors from 2x (0.75... 4 mm²) and stranded up to 2x (0.75... 25 mm²). At 40 °C the minimum permissible cross-section is 16 mm² — that's the derated ampacity floor for continuous current. The front of the contactor carries IP20 protection — finger-safe in a closed panel — while the terminals themselves are IP00, so live parts are exposed when the panel door is open.

Integration Notes

The S2 size means it occupies a standard 55 mm slot; plan your gland plate and wireway clearance around the 115 mm depth for screw-terminal access.

Frequently asked questions

What are the key dimensions of the 3RT1035-1AU00?

Width is 55 mm, height is 112 mm, depth is 115 mm — these are the envelope dimensions for panel layout and DIN rail spacing.

What wire sizes does the 3RT1035-1AU00 accept?

Solid conductors: 2x (0.5... 1.5 mm²), 2x (0.75... 2.5 mm²), max. 2x (0.75... 4 mm²). Stranded: 2x (0.75... 25 mm²). Also accepts 2x (0.75... 16 mm²) solid or stranded.

MPN
3RT1035-1AU00