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Siemens 3RT1024-1AB04 — Contactors

Siemens 3RT1024-1AB04 SIRIUS Power Contactor, S0, 3NO, 12.5A

MPN3RT1024-1AB04

Siemens SIRIUS power contactor, size S0, 3 NO main contacts, screw terminals, 12.5 A AC-4 at 400 V, 7.5 kW at 500 V, snap-on DIN rail mounting.

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

3RT1024-1AB04 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-1AB04 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V12.5 A
Rated value @ 400 V3 A
Rated value @ 500 V7.5 kW
Rated value @ 690 V7.5 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
3RT1024-1AB04 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz24 V
3RT1024-1AB04 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-1AB04 — 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
3RT1024-1AB04 — 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
3RT1024-1AB04 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-1AB04 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1024-1AB04 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

The AC-3 power rating reaches 7.5 kW at 500 V and 690 V, covering standard motor starting across a range of supply voltages. The front face carries IP20 finger protection; the terminals themselves are rated IP00, so the contactor expects enclosure-level protection in the panel.

For standard AC-3 motor starting, the 7.5 kW rating at 500 V and 690 V tells you the motor frame size this contactor can handle across common industrial voltages. The auxiliary contact block is rated for switching at multiple control voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. Wire range for the main circuit accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) solid, and 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm² stranded. AWG equivalents are 2x (16 to 12), 2x (14 to 10), and 1x 8. This covers the common control and power wiring sizes found in panel builds.

The contactor carries a rated mechanical service life of 10 million operating cycles, which is typical for the S0 frame and reflects the contactor's suitability for high-cycle applications like conveyor systems or packaging machinery.

Frequently asked questions

Will the 3RT1024-1AB04 fit a panel designed for the 3RT1017-1AP01?

Both are S0 frame contactors with the same 45 mm width and 85 mm height, so the footprint and DIN-rail mounting are identical. The depth is 140 mm. The main difference is the coil voltage and contact ratings — verify those against your BOM before substituting.

MPN
3RT1024-1AB04