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Siemens 3RT1025-3AH00 — Contactors

Siemens SIRIUS 3RT1025-3AH00 Power Contactor, S0, 10 kW at 5

MPN3RT1025-3AH00

Siemens SIRIUS, power contactor, 3RT1025-3AH00, size S0, 3-pole NO, 10 kW at 500 V, 11 kW at 690 V, screw-type terminals, IP20 front, 45 mm width.

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

3RT1025-3AH00 — Identification
ParameterValue
Contactor frame sizeS0
3RT1025-3AH00 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V10 kW
Rated value @ 690 V11 kW
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1025-3AH00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz48 V
3RT1025-3AH00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1025-3AH00 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 63 A
Short-circuit coordination type 2, fusefuse gL/gG: 25 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1025-3AH00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Side-by-side mountingYes
3RT1025-3AH00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1025-3AH00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1025-3AH00 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth90 mm

Product details

Rated for 10 kW at 500 V and 11 kW at 690 V, this contactor handles a 3-phase motor up to that power range.

The 90 mm depth means you need at least that much clearance behind the panel door for the arc chamber and terminals. Main circuit terminals are screw-type, accepting solid conductors from 0.25 to 2.5 mm² (two per clamp) and stranded up to 2x 6 mm² or a single 10 mm². AWG equivalents run from 2x 16-12 down to 1x 8. That's enough for the motor leads this contactor is sized for.

Protection and coordination

For Type 1 coordination (contactor may need replacement after a fault), the fuse can be 63 A. This lets a panel builder choose between protecting the contactor or protecting the circuit with a larger fuse. The contactor is rated for operation up to 2,000 m altitude without derating. Above that, expect reduced dielectric strength and cooling air density.

Frequently asked questions

What are the key ratings of the 3RT1025-3AH00?

It's a size S0 3-pole NO contactor rated for 10 kW at 500 V and 11 kW at 690 V motor loads. In AC-4 duty at 400 V it handles 15.5 A. The coil operates at 48 V 50 Hz with a pick-up range of 0.8 to 1.1 x rated voltage.

Will the 3RT1025-3AH00 fit a panel designed for the 3RT1017-1AP01?

Both are S0 frame contactors with the same 45 mm width, so they share the same DIN-rail footprint and panel cutout. The main difference is the coil voltage — the 3RT1025-3AH00 uses 48 V 50 Hz, while the 3RT1017-1AP01 uses a different coil. Wiring the coil supply correctly is the only fit concern.

What compliance documentation is available for the 3RT1025-3AH00?

As a Siemens SIRIUS catalog item, it carries CE marking and is designed to relevant IEC/EN standards including EN 60947-4-1 for contactors. RoHS and REACH declarations are standard from the manufacturer. Specific UL/CSA listings should be confirmed against the exact variant marking on the nameplate.

MPN
3RT1025-3AH00