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Siemens 3RT2027-1BE40 — Contactors

Siemens 3RT2027-1BE40 SIRIUS Power Contactor, Size S0, 24 VD

MPN3RT2027-1BE40
Active

Siemens SIRIUS power contactor, size S0, 3RT2027-1BE40, 24 VDC coil, screw-type terminals, 10 A at 24 V DC, 45 mm width, 107 mm depth.

Siemens 3RT2027-1BE40 datasheet (PDF)
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

3RT2027-1BE40 — Identification
ParameterValue
Contactor frame sizeS0
3RT2027-1BE40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V22 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V5 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2027-1BE40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2027-1BE40 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2027-1BE40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 125A (690V,100kA), aM: 50A (690V,100kA), BS88: 125A (415V,80kA)
Short-circuit coordination type 2, fusegG: 50A (690V,100kA), aM: 25A (690V, 100kA), BS88: 50A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2027-1BE40 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2027-1BE40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2027-1BE40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2027-1BE40 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm

Product details

Integrator note — SIRIUS 3RT2027-1BE40

The contactor mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward — useful when fitting into tight panel layouts.

Clearance and wiring

The contactor occupies a 45 mm width, 85 mm height, and 107 mm depth footprint. Main contact wiring accepts solid or stranded conductors from 1 to 10 mm²; auxiliary wiring accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded. The arcing time is 10 ms, and DC switching operates at 15 to 18 ms.

Switching performance and ratings

Rated operational current on the main contacts: 16 A at AC-3 (motor duty) and 8 A at AC-1 (resistive duty). Maximum switching frequency: 1000 operations per hour at AC-1, 750 at AC-2 and AC-3, and 250 at AC-4. The auxiliary contact ratings span from 10 A at 24 V DC down to 0.3 A at 220 V DC.

Frequently asked questions

What is the depth of 3RT2027-1BE40?

The depth is 107 mm.

What solid conductor size does 3RT2027-1BE40 accept?

It accepts solid conductors from 1 to 10 mm².

Where can I buy 3RT2027-1BE40?

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

MPN
3RT2027-1BE40