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Siemens 3RT1025-1AD00 — Contactors

Siemens 3RT1025-1AD00 SIRIUS Power Contactor, S0, 10 kW at 5

MPN3RT1025-1AD00

Siemens SIRIUS power contactor, size S0, 3RT1025-1AD00, 3 NO main contacts, 10 kW at 500 V, 11 kW at 690 V, screw-type terminals, DIN rail mount.

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

3RT1025-1AD00 — Identification
ParameterValue
Contactor frame sizeS0
3RT1025-1AD00 — 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
3RT1025-1AD00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz42 V
3RT1025-1AD00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1025-1AD00 — 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
3RT1025-1AD00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1025-1AD00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1025-1AD00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1025-1AD00 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

Rated for 10 kW at 500 V and 11 kW at 690 V, this contactor handles the motor starting and stopping duties common on pumps, fans, and conveyors in a 400 V to 690 V three-phase system. The AC-2 rating at 400 V is 7.5 kW, and the AC-4 rating at 400 V is 15.5 A — the AC-4 figure governs reversing or inching duty where the contactor makes and breaks stalled-rotor current.

Main circuit terminals accept screw-type connections: solid conductors from 2x (0.5 to 1.5 mm²) up to 2x (0.75 to 4 mm²), and stranded conductors from 2x (1 to 2.5 mm²) up to 2x (2.5 to 6 mm²), with a maximum of 2x 10 mm². AWG equivalents are 2x (16 to 12) solid and 2x (14 to 10) stranded, with a single 8 AWG maximum. The terminal IP00 rating means the connection points are not touch-protected — the panel enclosure provides that barrier.

For Type 2 coordination (contactor remains usable after a fault), the fuse is gL/gG 25 A. These values guide the selection of motor-protective circuit breakers or fuses in the feeder.

Frequently asked questions

What are the key motor power ratings for this contactor?

The 3RT1025-1AD00 is rated for 10 kW at 500 V and 11 kW at 690 V. At 400 V under AC-2 duty (normal starting), it is rated for 7.5 kW. The AC-4 rating at 400 V is 15.5 A, which applies to reversing or plugging duty.

What is the physical size of this contactor?

The S0 frame measures 45 mm wide, 85 mm tall, and 91 mm deep. It mounts on a 35 mm DIN rail per EN 50022, either by snapping on or with screws.

What wire sizes does the main circuit accept?

The screw terminals accept solid conductors from 2x (0.5 to 1.5 mm²) up to 2x (0.75 to 4 mm²), and stranded conductors from 2x (1 to 2.5 mm²) up to 2x (2.5 to 6 mm²), with a maximum of 2x 10 mm². AWG equivalents are 2x (16 to 12) solid and 2x (14 to 10) stranded, with a single 8 AWG maximum.

What upstream protection is required for Type 1 and Type 2 coordination?

For Type 1 coordination, use a gL/gG fuse rated 63 A. For Type 2 coordination, use a gL/gG fuse rated 25 A.

MPN
3RT1025-1AD00