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Siemens 3RT1035-1AC10 — Contactors

Siemens SIRIUS 3RT1035-1AC10 Power Contactor, S2, 24 V 60 Hz

MPN3RT1035-1AC10

Siemens SIRIUS, power contactor, 3RT1035-1AC10, size S2, 24 V 60 Hz coil, 18.5 kW at 400 V AC-2, 35 A AC-4, screw/snap-on 35 mm DIN rail.

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

3RT1035-1AC10 — Identification
ParameterValue
Contactor frame sizeS2
3RT1035-1AC10 — 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
3RT1035-1AC10 — Control & Coil
ParameterValue
Control supply voltage typeAC
3RT1035-1AC10 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1035-1AC10 — 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
3RT1035-1AC10 — 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
3RT1035-1AC10 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1035-1AC10 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1035-1AC10 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1035-1AC10 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

Its coil is rated for 24 V at 60 Hz, which is the standard control voltage in North American 60 Hz panels. The contactor carries 18.5 kW at 400 V in AC-2 duty (slip-ring motor starting) and 35 A in AC-4 duty (plugging/inching). The front face is IP20, so it's finger-safe once installed in an enclosure. Terminal protection is IP00 — the connection points need the panel's own IP rating.

That's enough for the full rated current without needing a lug adapter.

RoHS compliance date is 05/01/2012, meaning it meets the EU RoHS directive for substance restrictions.

Sourcing takeaway

For a line-down replacement or a new BOM line, this contactor is a straightforward RFQ item. No last-time-buy risk, no cross-reference needed — just confirm the coil voltage (24 V 60 Hz) and the motor kW rating match your load.

Frequently asked questions

What is the closest functional alternative to the 3RT1035-1AC10?

The 3RT1036-1AB00 is a higher-rated SIRIUS contactor (same family, larger frame). It will not drop into the same footprint without panel modifications — the 3RT1035 is size S2, the 3RT1036 is larger. Stick with the 3RT1035 for an exact fit.

What is the depth of the 3RT1035-1AC10?

115 mm deep, plus terminals. That fits most 200 mm deep enclosures with clearance for wiring.

What wire sizes does the 3RT1035-1AC10 accept?

For the main circuit: solid 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) or max 2x (0.75 to 4 mm²). Stranded: 2x (0.75 to 25 mm²). The control circuit terminals accept solid or stranded 2x (0.75 to 16 mm²).

Will the 3RT1035-1AC10 replace a 3RT1036-1AB00 in the same panel?

No. The 3RT1035 is size S2; the 3RT1036 is a larger frame. The mounting hole pattern and DIN rail footprint differ. You'd need to re-drill or use an adapter plate.

What compliance documentation is available for the 3RT1035-1AC10?

RoHS compliance date is 05/01/2012. Pollution degree 3 rating. The brand's standard declarations (CE, UL, CSA) are available upon request through the RFQ process.

MPN
3RT1035-1AC10