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Siemens 3RT1025-1AL00 — Contactors

3RT1025-1AL00 SIRIUS Power Contactor, S0, 24 VDC, 10 kW at 5

MPN3RT1025-1AL00

Siemens SIRIUS power contactor, size S0, 3RT1025-1AL00, 24 VDC coil, 3-pole, screw terminals, 45 mm wide, snap-on DIN rail mounting, rated 10 kW at 500 V, 11 kW at 690 V.

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

3RT1025-1AL00 — Identification
ParameterValue
Contactor frame sizeS0
3RT1025-1AL00 — 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
3RT1025-1AL00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz125 V
3RT1025-1AL00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1025-1AL00 — 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
3RT1025-1AL00 — 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
3RT1025-1AL00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1025-1AL00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1025-1AL00 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

Rated motor power is 10 kW at 500 V and 11 kW at 690 V; for AC-4 duty at 400 V it carries 15.5 A, making it suited for reversing or inching applications where the contactor sees frequent switching under load. The auxiliary contact block handles 10 A at 24 V (AC-12), and the coil holds at 24 VDC nominal with a rated frequency of 50 Hz.

DIN-rail footprint and wiring

At 45 mm wide, 85 mm tall, and 91 mm deep, the S0 frame leaves room for side-by-side mounting (permitted by the manufacturer) without derating, provided the ambient stays within -25 to +60 °C during operation. Main-circuit terminals accept 2x (1 to 2.5 mm²) stranded or 2x (2.5 to 6 mm²) solid, up to 2x 10 mm² max. Auxiliary terminals handle 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), max 2x 4 mm² — typical for control wiring in a panel. IP20 on the front, IP00 at the terminals — the contactor is protected against finger contact on the front face but requires the panel enclosure to shield the wiring zone.

Frequently asked questions

Where can I buy 3RT1025-1AL00 and get a price?

This part is sourced to order against an RFQ through independent distribution. Submit a quote request; availability and pricing are confirmed at quote time.

Will 3RT1025-1AL00 drop into a panel specified around 3RT1023-1AL20 without rewiring?

Both are S0-frame SIRIUS contactors with the same 45 mm width and DIN-rail mounting, so the mechanical fit is identical. The key difference is the coil voltage — 3RT1025-1AL00 uses 24 VDC; verify the control circuit voltage before swapping.

What is the depth of 3RT1025-1AL00?

The depth is 91 mm.

What solid wire sizes does the auxiliary terminal accept?

The auxiliary terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²) solid or stranded.

MPN
3RT1025-1AL00