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Siemens 3RT2025-2BG40 — Contactors

Siemens 3RT2025-2BG40 SIRIUS Power Contactor, S0, 24 VDC, 10

MPN3RT2025-2BG40
Active

Siemens SIRIUS power contactor, size S0, 24 VDC coil, spring-type terminals, 10 A DC-13 at 24 V, 45 mm width, current lifecycle stage.

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

3RT2025-2BG40 — Identification
ParameterValue
Contactor frame sizeS0
3RT2025-2BG40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V3 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2025-2BG40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2025-2BG40 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2025-2BG40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)
Short-circuit coordination type 2, fusegG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2025-2BG40 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2025-2BG40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2025-2BG40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2025-2BG40 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth107 mm

Product details

The 24 VDC coil operates within -25 to +60 °C ambient, and the spring-type terminals accept solid or stranded wire from 1 to 10 mm² — no screwdriver needed for termination, which speeds panel wiring and reduces torque-check time. The DC switching ratings tell you what it can handle on inductive loads: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V. At 400 V DC it's rated 3 A.

The 45 mm width (three 17.5 mm modules) fits standard panel layout grids.

Rated for 1 000 operating cycles per hour in AC-1, AC-2, AC-3, and AC-3e duty. AC-4 drops to 300 cycles/hour — that's the category for plugging and inching, which stresses the contacts harder.

Frequently asked questions

What is the closest functional alternative to 3RT2025-2BG40?

The 3RT2015-2UB41 is a smaller S00-frame contactor with a 24 VDC coil, but it carries lower DC-13 ratings (typically 4 A at 24 V) and uses screw terminals instead of spring-type. It will not drop into a panel wired for the S0 frame without re-termination and a different DIN-rail footprint.

What compliance documentation does Siemens provide for 3RT2025-2BG40?

Siemens provides RoHS, REACH, and UL/IEC declarations on request. The contactor is designed to meet IEC 60947-4-1 and UL 508 standards.

Where can I buy 3RT2025-2BG40 and how is it quoted?

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

MPN
3RT2025-2BG40