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Siemens 3RT1035-3AL16 — Contactors

Siemens 3RT1035-3AL16 SIRIUS Power Contactor, S2, 18.5 kW AC

MPN3RT1035-3AL16

Siemens SIRIUS power contactor, size S2, 3RT1035-3AL16, screw-type terminals, 18.5 kW at 400 V AC-2, 22 kW at 500 V, 115 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

3RT1035-3AL16 — Identification
ParameterValue
Contactor frame sizeS2
3RT1035-3AL16 — 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
3RT1035-3AL16 — Control & Coil
ParameterValue
Control supply voltage typeAC
3RT1035-3AL16 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1035-3AL16 — 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
3RT1035-3AL16 — 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
3RT1035-3AL16 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1035-3AL16 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1035-3AL16 — Mechanical
ParameterValue
Width75 mm
Height112 mm
Depth115 mm
3RT1035-3AL16 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

Depth is 115 mm, width 75 mm, height 112 mm — check your enclosure depth clearance if you're swapping into an existing panel, especially one originally laid out for a shorter contactor.

For AC-3 (squirrel-cage motors, normal start/run), the rating at 500 V is 22 kW, and at 690 V it's 11.4 kW. The contactor is rated for 60 Hz operation, with a rated control supply voltage of 230 V at 60 Hz. Maximum switching rates vary by duty: 1200 cycles/hour for AC-1 (resistive), 1000 for AC-3, and 300 for AC-4 — the AC-4 figure governs if you're doing frequent reversing.

Solid wire accepts 2x (0.25 to 2.5 mm²), stranded accepts 2x (0.75 to 25 mm²). At 40 °C ambient, the minimum permissible conductor cross-section is 16 mm² — that's the thermal limit for continuous current, not the mechanical minimum.

RoHS compliance date is May 1, 2012 — the part meets the EU RoHS substance restrictions from that date forward.

Frequently asked questions

What is the closest functional alternative to 3RT1035-3AL16?

The 3RT1036-1AB00 is a peer in the same SIRIUS contactor family, but it's a different frame size and rating. The 3RT1035-3AL16 is size S2 with screw terminals; the 3RT1036-1AB00 is size S3. They are not drop-in replacements — the mounting footprint, terminal spacing, and current ratings differ. Verify your panel layout and load before switching.

What is the depth of 3RT1035-3AL16?

115 mm — this is the dimension from the DIN-rail mounting surface to the front of the contactor. Check your enclosure depth if replacing a shorter unit.

What solid wire sizes does the 3RT1035-3AL16 accept?

The main circuit screw terminals accept 2 conductors of solid wire from 0.25 mm² up to 2.5 mm² per terminal.

Will 3RT1035-3AL16 drop into a panel specified for 3RT1036-1AB00?

No — the 3RT1035-3AL16 is size S2 (75 mm wide, 115 mm deep) while the 3RT1036-1AB00 is size S3 with different mounting dimensions and terminal spacing. You would need to re-drill the DIN rail or use an adapter plate, and verify the terminal lug positions align with your wiring.

What compliance documentation is available for 3RT1035-3AL16?

RoHS compliance is confirmed with a substance prohibition date of May 1, 2012. The contactor carries IP20 protection on the front (IP00 at terminals) and is rated for pollution degree 3. Standard Siemens documentation includes the CE declaration and manufacturer's declaration of conformity for the SIRIUS series.

MPN
3RT1035-3AL16