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Siemens 3RT1025-1AK60-ZW97 — Contactors

Siemens 3RT1025-1AK60-ZW97 SIRIUS Power Contactor, S0, 7.5 k

MPN3RT1025-1AK60-ZW97

Siemens SIRIUS power contactor, 3RT1025-1AK60-ZW97, size S0, 7.5 kW at 400 V AC-2, 45 mm wide, screw terminals, IP20 front.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1025-1AK60-ZW97 — Identification
ParameterValue
Contactor frame sizeS0
3RT1025-1AK60-ZW97 — 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
3RT1025-1AK60-ZW97 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1025-1AK60-ZW97 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1025-1AK60-ZW97 — 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
3RT1025-1AK60-ZW97 — 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
3RT1025-1AK60-ZW97 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1025-1AK60-ZW97 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1025-1AK60-ZW97 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

Rated for 7.5 kW at 400 V in AC-2 duty (slip-ring motor starting), and 11 kW at 690 V, this contactor handles pump, fan, and compressor loads up to its frame rating. For reversing or inching duty (AC-4), it carries 15.5 A at 400 V — a figure that governs contact life in frequent-switching applications. Auxiliary contacts are rated 10 A at 24 V, 6 A at 230 V, and 0.3 A at 220 V, covering PLC-level signal switching and control circuit isolation. The IP20 front and IP00 terminal area mean the body is finger-safe when panel-mounted; wiring terminations require enclosure protection.

Integration notes

The 45 x 85 x 91 mm (W x H x D) footprint fits a standard S0 contactor slot. Side-by-side mounting is permitted with 6 mm spacing, so multiple contactors can pack tightly on a DIN rail without derating — useful for multi-motor MCC sections. Screw terminals on the main circuit accept 2x (1 to 2.5 mm²) solid or stranded, up to 2x 10 mm² max. The auxiliary circuit uses smaller terminals: 2x (0.5 to 1.5 mm²) solid. For Type 2 coordination (no-weld on fault), specify a 25 A gL/gG fuse upstream; for Type 1 (replace after fault), a 63 A fuse is allowed.

Frequently asked questions

What are the key ratings for this contactor?

Motor power: 7.5 kW at 400 V AC-2, 11 kW at 690 V. AC-4 breaking current: 15.5 A at 400 V. Auxiliary contact ratings: 10 A at 24 V, 6 A at 230 V. Coil: 110 V at 50 Hz, 120 V at 60 Hz. Mounts on 35 mm DIN rail, 45 mm wide.

Will this contactor drop into a panel designed for the 3RT1023-1AL20?

Both are S0 frame contactors on a 45 mm DIN-rail footprint, so the mechanical fit is the same. The 3RT1025-1AK60-ZW97 carries higher AC-2 power (7.5 kW vs the 3RT1023's lower rating at 400 V), so it can replace the smaller unit if the load is within its ratings. Verify the coil voltage matches — this unit is 110 V at 50 Hz / 120 V at 60 Hz.

What compliance documentation is available for this part?

As a Siemens SIRIUS product, it carries CE marking for the European market and UL/CSA certification for North America. RoHS and REACH compliance declarations are standard from Siemens for current-production catalog items. The IP20 front and pollution degree 3 rating support IEC 60947-4-1 compliance for motor starters.

MPN
3RT1025-1AK60-ZW97