Skip to main content
Log in
Siemens 3RT2025-2AC24 — Contactors

Siemens 3RT2025-2AC24 SIRIUS S0 Power Contactor, 24 VAC Coil

MPN3RT2025-2AC24
Active

Siemens SIRIUS S0 power contactor, 24 VAC coil, spring-type terminals, screw and snap-on 35 mm DIN rail mounting, 45 mm wide, 102 mm high, 144 mm deep.

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

Specifications

3RT2025-2AC24 — Identification
ParameterValue
Contactor frame sizeS0
3RT2025-2AC24 — 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 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2025-2AC24 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz24 V
3RT2025-2AC24 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2025-2AC24 — 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)
3RT2025-2AC24 — 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2025-2AC24 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2025-2AC24 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2025-2AC24 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth144 mm
3RT2025-2AC24 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

The spring-type terminals accept solid or stranded conductors from 1 to 10 mm², or 2x (0.5 to 2.5 mm²) for dual-wire termination.

Switching Performance and Ratings

Rated for AC-1, AC-2, AC-3, and AC-3e duty at 1,000 operations per hour maximum; AC-4 duty at 300 operations per hour. Arcing time is 10 ms. Coil operating times: 4 to 16 ms at AC. The contactor is rated for 6 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, and 0.6 A at 440 V — these are the switching ratings for the main contacts under the respective voltage conditions.

Frequently asked questions

What is the closest functional second-source for 3RT2025-2AC24?

The 3RT2036-1AC20-ZX95 is a functionally similar SIRIUS S0 contactor but with a different coil voltage and auxiliary configuration — verify coil compatibility and terminal layout before substituting.

What are the key dimensions of 3RT2025-2AC24?

Width 45 mm, height 102 mm, depth 144 mm — standard S0 frame size for DIN rail mounting.

Where can I buy 3RT2025-2AC24?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

MPN
3RT2025-2AC24