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Siemens 3RT2025-2AN20 — Contactors

Siemens 3RT2025-2AN20 SIRIUS Power Contactor, S0

MPN3RT2025-2AN20
Active

Siemens SIRIUS 3RT2025-2AN20 power contactor, size S0, 24 VDC coil, spring-type terminals, 45 mm width, 102 mm height, 97 mm depth.

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

Specifications

3RT2025-2AN20 — Identification
ParameterValue
Contactor frame sizeS0
3RT2025-2AN20 — 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
3RT2025-2AN20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz220 V
3RT2025-2AN20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2025-2AN20 — 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)
3RT2025-2AN20 — 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
3RT2025-2AN20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2025-2AN20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2025-2AN20 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth97 mm
3RT2025-2AN20 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

The 3RT2025-2AN20: This eliminates the need for bootlace ferrules on stranded wire, cutting termination time on the panel build.

Panel fit and mounting flexibility

The 45 mm width and 102 mm height fit standard S0 contactor spacing; depth is 97 mm.

Operating envelope and switching capability

Rated for 1,000 operating cycles per hour in AC-1, AC-2, AC-3, and AC-3e duty, dropping to 300 cycles/hour in AC-4. The AC-4 limit reflects the heavier electrical wear from inching and plugging duty — if your application involves frequent reversing or jogging, budget for reduced contact life. Auxiliary switch option is available, and the main contact rating for AC loads at 400 V is 3 A.

Frequently asked questions

What is the mechanical life of the 3RT2025-2AN20?

The typical mechanical life of the contactor is 10,000,000 operations. Electrical life depends on the switching duty and load current.

MPN
3RT2025-2AN20