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Siemens 3RT1025-3AG14 — Contactors

Siemens 3RT1025-3AG14 SIRIUS Power Contactor, S0 Frame, 11 k

MPN3RT1025-3AG14

Siemens SIRIUS 3RT1025-3AG14 power contactor, size S0, screw-type terminals, 45 mm width, rated for 11 kW at 690 V AC-3.

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

3RT1025-3AG14 — Identification
ParameterValue
Contactor frame sizeS0
3RT1025-3AG14 — 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
3RT1025-3AG14 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz100 V
3RT1025-3AG14 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1025-3AG14 — 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
3RT1025-3AG14 — 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
3RT1025-3AG14 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1025-3AG14 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1025-3AG14 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

The 3RT1025-3AG14: Rated for both 50 Hz and 60 Hz operation, its core motor ratings are 10 kW at 500 V and 11 kW at 690 V in AC-3 duty, so it handles standard European 400 V and 690 V motor circuits. Auxiliary contact block provides 2 instantaneous contacts, rated 10 A at 24 V, 6 A at 230 V, and 0.3 A at 220 V DC — sufficient for PLC-level control signals or relay interlocking. The main circuit uses screw-type terminals accepting 2x (0.25...2.5 mm²) solid or 2x (1...2.5 mm²) stranded, up to 2x 10 mm² max.

The S0 frame measures 45 mm wide, 85 mm tall, and 140 mm deep, so it occupies a single 45 mm slot on the DIN rail. Side-by-side mounting is permitted with zero clearance on the front side (IP20 finger-safe on front), but requires 6 mm spacing at the side for heat dissipation when mounted in a row. The bottom terminal area is IP00 — keep live parts guarded in the enclosure. Short-circuit coordination is specified for both Type 1 and Type 2: Type 2 requires a gL/gG fuse rated 25 A, Type 1 allows up to 63 A. This matters when designing selectivity with upstream protection in motor control centers.

For high-cycle applications (conveyors, pumps cycling more than once per minute), factor in electrical endurance derating per the load current curve — AC-3 life will be lower than the mechanical figure.

Frequently asked questions

What is the closest functional second-source or replacement?

The 3RT1017-1AP01 is the closest peer in the same S0 frame size. Both share the same DIN-rail footprint and screw-terminal main circuit. However, verify coil voltage and auxiliary contact configuration — the 3RT1025-3AG14 carries different ratings and may not be a drop-in without checking the control circuit.

What are the key motor power ratings for this contactor?

In AC-3 duty (squirrel-cage motors), it is rated 10 kW at 500 V and 11 kW at 690 V. For AC-2 (slip-ring motors), it delivers 7.5 kW at 400 V. The AC-4 rating for inching/plugging is 15.5 A at 400 V.

What is the physical size and mounting method?

The S0 frame measures 45 mm wide, 85 mm tall, and 140 mm deep. It mounts via screw or snap-on onto a 35 mm DIN rail per EN 50022. Side-by-side mounting is permitted with 6 mm side clearance for heat dissipation.

What compliance documentation is available?

The product carries a reference code per DIN EN 81346-2 (Q for power switching). Standard SIRIUS documentation includes RoHS and REACH compliance declarations, along with IEC/EN 60947-4-1 certification for the contactor series. Specific UL/CSA file numbers are available upon request through the manufacturer's technical documentation portal.

MPN
3RT1025-3AG14