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Siemens 3RT2025-2AG20 — Contactors

Siemens 3RT2025-2AG20 SIRIUS Power Contactor, Size S0, 24 VD

MPN3RT2025-2AG20
Active

Siemens SIRIUS 3RT2025-2AG20 power contactor, size S0, 24 VDC coil, spring-type terminals, screw and snap-on mounting onto 35 mm DIN rail.

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

Specifications

3RT2025-2AG20 — Identification
ParameterValue
Contactor frame sizeS0
3RT2025-2AG20 — 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
3RT2025-2AG20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz110 V
3RT2025-2AG20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2025-2AG20 — 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)
3RT2025-2AG20 — 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
3RT2025-2AG20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2025-2AG20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2025-2AG20 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth97 mm
3RT2025-2AG20 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

Rated for continuous duty at 24 VDC, the coil draws 10 A at rated value. The contactor is rated for AC-3 switching at up to 1 000 operating cycles per hour, and for AC-4 at up to 300 cycles per hour.

Dimensions: 102 mm height, 45 mm width, 97 mm depth. Spring-type terminals on the magnet coil accept solid or stranded wire from 1 to 10 mm², or 2x (0.5 to 2.5 mm²) solid/stranded. The auxiliary switch is included.

Frequently asked questions

What are the key ratings of the 3RT2025-2AG20?

It is a size S0 power contactor with a 24 VDC coil drawing 10 A at rated value. Rated for AC-3 switching at up to 1 000 cycles per hour, AC-4 at up to 300 cycles per hour. Operating temperature -25 to +60 °C. Dimensions 102 x 45 x 97 mm.

MPN
3RT2025-2AG20