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Siemens 3RT5035-1AC20 — Contactors

Siemens 3RT5035-1AC20 SIRIUS Power Contactor, 24 VAC Coil, S

MPN3RT5035-1AC20

Siemens SIRIUS power contactor, size S2, 24 VAC coil, 55 mm width, 115 mm depth, screw terminals, snap-on DIN rail mounting.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT5035-1AC20 — Identification
ParameterValue
Contactor frame sizeS2
3RT5035-1AC20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V11.4 kW
Rated value @ 230 V6 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT5035-1AC20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.35
Rated value @ 50 Hz24 V
3RT5035-1AC20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT5035-1AC20 — 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
3RT5035-1AC20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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
3RT5035-1AC20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT5035-1AC20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT5035-1AC20 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT5035-1AC20 — Specifications
ParameterValue
At AC5 000 1/h

Product details

It carries a 24 VAC coil rated for both 50 Hz and 60 Hz supply, drawing 6 A at 24 V rated value.

Main circuit terminals accept 2x (0.75–16 mm²) solid or stranded wire, or 2x AWG 18–2. Auxiliary and control circuit terminals are also screw-type, and the contactor accepts auxiliary switch blocks for status feedback.

Frequently asked questions

What is the depth and width of 3RT5035-1AC20?

Depth is 115 mm, width is 55 mm, height is 112 mm. The contactor fits a standard 35 mm DIN rail.

Where can I buy 3RT5035-1AC20?

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

MPN
3RT5035-1AC20