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Siemens 3RT5036-1AC20 — Contactors

Siemens 3RT5036-1AC20 SIRIUS Power Contactor, 38 kW at 400 V

MPN3RT5036-1AC20

Siemens SIRIUS S2 power contactor, 3RT5036-1AC20, 38 kW at 400 V 60°C, 690 V insulation, screw terminals, snap-on 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

3RT5036-1AC20 — Identification
ParameterValue
Contactor frame sizeS2
3RT5036-1AC20 — 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
3RT5036-1AC20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.35
Rated value @ 50 Hz24 V
3RT5036-1AC20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT5036-1AC20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 160 A
Short-circuit coordination type 2, fusefuse gL/gG: 80 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT5036-1AC20 — 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
3RT5036-1AC20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT5036-1AC20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT5036-1AC20 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT5036-1AC20 — Specifications
ParameterValue
At AC5 000 1/h

Product details

The 3RT5036-1AC20: Its motor ratings at 60 °C ambient — 22 kW at 230 V, 38 kW at 400 V, 66 kW at 690 V — tell you the real-world load it can handle in a warm enclosure, not just a lab number.

Mounts via screw and snap-on onto 35 mm DIN rail per EN 50022, with ±180° rotation possible on a vertical surface and ±22.5° tilt forward/backward — useful when you need to orient the panel wiring for access. Dimensions are 112 mm high, 55 mm wide, 115 mm deep — the S2 frame size is a common footprint in Siemens SIRIUS contactor families, so panel cutouts and busbar layouts often carry over.

Termination and environment

Main and auxiliary/control circuits use screw-type terminals; the main terminals accept 2x (0.75…16 mm²) solid/stranded or 2x (18…2 AWG). Rated for pollution degree 3 (industrial environment with conductive or dry non-conductive pollution), operating from -25 to +60 °C, and storage from -55 to +80 °C. Coil draws 6 A at 24 V AC 50/60 Hz, 1 A at 110 V, 0.3 A at 220 V, and 6 A at 230 V — the 24 V coil current matters for control transformer sizing and fuse selection.

Substance prohibitance date of 03/01/2017 aligns with RoHS/REACH compliance timelines; the product extension for auxiliary switches indicates modular add-on capability.

Frequently asked questions

What are the motor power ratings for 3RT5036-1AC20 at 60 °C?

At 60 °C ambient, it handles 22 kW at 230 V, 38 kW at 400 V, and 66 kW at 690 V — these are the ratings that matter for a warm panel environment.

Will 3RT5036-1AC20 drop into a panel specified for 3RT5036-1AP00?

Both are S2 frame size with the same 112 x 55 x 115 mm footprint and snap-on DIN rail mounting, so mechanical fit is identical. The 1AP00 variant differs in coil voltage or auxiliary configuration — check your control voltage before substituting.

What compliance documentation does Siemens provide for 3RT5036-1AC20?

The part carries a substance prohibitance date of 03/01/2017, indicating RoHS/REACH compliance. Standard Siemens documentation includes a CE declaration and UL/CSA file numbers available through the product support portal.

How do I get current pricing and availability for 3RT5036-1AC20?

Submit an RFQ through the storefront — this part is sourced and quoted to order via independent distribution, with availability and current pricing confirmed at quote time.

MPN
3RT5036-1AC20