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Siemens 3RT2025-1AP00 — Contactors

Siemens 3RT2025-1AP00 SIRIUS Power Contactor, Size S0, 45mm

MPN3RT2025-1AP00
Active

Siemens SIRIUS 3RT2025-1AP00 power contactor, Size S0, 45 mm width, screw-type terminals, auxiliary switch, AC-3 switching frequency 1000 1/h.

$83.04 – $140.27Ref. price · indicative, final on quote
Siemens 3RT2025-1AP00 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

3RT2025-1AP00 — Identification
ParameterValue
Contactor frame sizeS0
3RT2025-1AP00 — 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
3RT2025-1AP00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz230 V
3RT2025-1AP00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2025-1AP00 — 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)
3RT2025-1AP00 — 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
3RT2025-1AP00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2025-1AP00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2025-1AP00 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth97 mm
3RT2025-1AP00 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

It's the main switching element for motor loads up to the AC-3 rating in a control panel, and it carries an integrated auxiliary switch for feedback or interlock circuits.

Ratings that matter for the BOM line

Wiring and integration notes

The auxiliary contact terminals take two conductors per clamp, 0.5 to 1.5 mm² or 0.75 to 2.5 mm², which is typical for daisy-chaining feedback to multiple PLC inputs. That 6 mm side gap is the tightest — adjacent contactors or other devices need that much air or an insulating barrier. The magnet coil uses screw-type terminals, so no special crimp tool is needed for the coil wiring. Arcing time is listed as 10 ms, which is short enough that arc flash coordination with upstream breakers is straightforward.

Frequently asked questions

What is the closest functional second-source to the 3RT2025-1AP00?

The 3RT2026-1AG20 is a functional peer in the same SIRIUS Size S0 family, but it uses a different coil voltage and may have a different auxiliary contact configuration. Verify the coil rating and auxiliary contact count against your BOM before substituting.

What wire sizes does the 3RT2025-1AP00 accept?

Main contacts accept solid or stranded wire from 1 to 10 mm². Auxiliary contacts accept two conductors per clamp: 0.5 to 1.5 mm² or 0.75 to 2.5 mm².

Will the 3RT2025-1AP00 drop into a panel specified around the 3RT2026-1AG20?

Both are Size S0 contactors with the same 45 mm width and DIN rail mounting, so the mechanical footprint is identical. The difference is in the coil voltage and auxiliary contact arrangement — check those before swapping.

MPN
3RT2025-1AP00