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Siemens 3RT1035-3AF00 — Contactors

Siemens SIRIUS 3RT1035-3AF00 Power Contactor, 35 A AC-4, 18.

MPN3RT1035-3AF00

Siemens SIRIUS S2 power contactor, 3RT1035-3AF00, screw-type terminals, 35 A AC-4 at 400 V, 18.5 kW AC-2 at 400 V, 55 mm wide, DIN EN 50022 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

3RT1035-3AF00 — Identification
ParameterValue
Contactor frame sizeS2
3RT1035-3AF00 — 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
3RT1035-3AF00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1035-3AF00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1035-3AF00 — 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
3RT1035-3AF00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0.75 ... 16 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1035-3AF00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1035-3AF00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1035-3AF00 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1035-3AF00 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

It carries a 35 A AC-4 rating at 400 V — that's the heavy-duty reversing or plugging duty cycle, where the contactor makes and breaks stalled-rotor currents. For the more common AC-2 duty (slip-ring motor starting), it's rated 18.5 kW at 400 V. The 55 mm wide body snaps onto a 35 mm DIN rail per EN 50022, and the screw-type main terminals accept up to 16 mm² stranded wire.

What the ratings mean in the panel

The AC-4 current rating is the one that matters for a reversing starter or a crane hoist — the contactor sees full locked-rotor current on every transition. 35 A at 400 V is roughly a 15 kW motor in that duty. The AC-2 rating (18.5 kW at 400 V) covers slip-ring motor controllers where the starting current is lower. Side-by-side mounting is allowed — no derating gap needed between units on the rail.

Coil data: at 50 Hz, the operating range is 0.8 to 1.1 times rated voltage. The contactor is rated for 110 V at 50 Hz. Switching times: 7 to 20 ms for the armature (make/break), with an arcing time of 10 to 15 ms. Auxiliary contact ratings cover 24 V (10 A) through 220 V (0.3 A) — enough for PLC-level signal switching without an interposing relay in most cases.

Frequently asked questions

Where can I buy 3RT1035-3AF00?

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

Will 3RT1035-3AF00 drop into a panel wired for 3RT1026-1AB00?

Both are SIRIUS S2 size contactors with the same 55 mm width and DIN rail footprint, so the mounting and busbar spacing are identical. The main difference is the current rating — the 3RT1035-3AF00 carries a higher AC-4 rating (35 A vs the smaller frame), so it's a functional upgrade if the panel wiring and overload relay are sized for the higher current. Check your wire gauge: the 3RT1035 terminals accept up to 16 mm² stranded.

What compliance documentation does Siemens provide for 3RT1035-3AF00?

RoHS compliance is confirmed with a substance prohibition date of 05/01/2012. The contactor carries IP20 front / IP00 terminal protection. Pollution degree 3 per IEC 60947-1 is specified for industrial environments.

MPN
3RT1035-3AF00