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Siemens 3RT1036-1BQ40 — Contactors

Siemens 3RT1036-1BQ40 SIRIUS Power Contactor, S2, 22 kW at 4

MPN3RT1036-1BQ40

Siemens SIRIUS 3RT1036-1BQ40 power contactor, size S2, screw-type terminals, 22 kW at 400 V AC-2, 41 A AC-4, 30 kW at 500 V, 55 mm width, IP20 front.

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

3RT1036-1BQ40 — Identification
ParameterValue
Contactor frame sizeS2
3RT1036-1BQ40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V41 A
Rated value @ 400 V3 A
Rated value @ 500 V30 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
3RT1036-1BQ40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1036-1BQ40 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1036-1BQ40 — 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
3RT1036-1BQ40 — 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
3RT1036-1BQ40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1036-1BQ40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1036-1BQ40 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth130 mm

Product details

It carries a 22 kW rating at 400 V in AC-2 duty (slip-ring motors), and 41 A in AC-4 (reversing/inching). At 500 V it handles 30 kW, and at 690 V it handles 11.4 kW — so it covers standard 400 V and 500 V three-phase motor circuits across a range of induction and wound-rotor machines.

Depth is 130 mm — check gland-plate clearance if the panel is shallow.

Terminal wiring and conductor sizing

Accepts solid wire from 2x 0.5 mm² up to 2x 4 mm², and stranded wire from 2x 0.75 mm² up to 2x 25 mm².

Switching performance and life

Maximum switching rates: 1,000 ops/hr in AC-1 (resistive), 800 in AC-3 (standard motor starting), 400 in AC-2, and 300 in AC-4 (plugging/reversing). DC arcing time is 20 to 25 ms.

DC switching capability

For DC loads: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, and 6 A at 230 V. The 230 V figure likely refers to AC-1 resistive duty. These DC ratings are modest — the contactor is primarily designed for AC motor switching, not high-current DC breaking.

Frequently asked questions

What is the closest functional alternative to 3RT1036-1BQ40?

The 3RT1044-1FB46 is a larger frame size (S3 vs S2) with higher ratings. It will not drop into the same panel footprint without rewiring and resizing the enclosure. The 3RT1015-1BB42 and 3RT1017-1AP01 are smaller S0 frame contactors — they cannot match the 22 kW AC-2 or 41 A AC-4 ratings. Stick with the S2 frame for a direct fit.

MPN
3RT1036-1BQ40