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Siemens 3RT1024-3AF00 — Contactors

Siemens 3RT1024-3AF00 SIRIUS Power Contactor, Size S0, 7.5 k

MPN3RT1024-3AF00

Siemens SIRIUS power contactor, Size S0, 3RT1024-3AF00, 3 NO main contacts, 7.5 kW at 500 V / 690 V, screw-type terminals, 45 mm width, IP20 front, current lifecycle.

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

3RT1024-3AF00 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-3AF00 — 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
3RT1024-3AF00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1024-3AF00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-3AF00 — 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
3RT1024-3AF00 — 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
3RT1024-3AF00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-3AF00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1024-3AF00 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth90 mm

Product details

Integrator brief

The Siemens 3RT1024-3AF00 is a SIRIUS power contactor in Size S0, rated for motor loads up to 7.5 kW at both 500 V and 690 V. Three normally-open main contacts handle the power path; screw-type terminals accept 2x (0.25...2.5 mm²) solid or stranded, with a maximum of 2x 10 mm² per clamp.

The AC-4 switching current at 400 V is 12.5 A, which governs the contactor's life under severe inrush or plugging duty — the mechanical endurance is 10 million cycles, but electrical life under AC-4 will be lower. For resistive loads (AC-12), the continuous current is 10 A.

The 90 mm depth fits standard 100 mm deep enclosures; the 85 mm height leaves clearance for busbar covers or auxiliary contact blocks.

Frequently asked questions

What are the key ratings for the 3RT1024-3AF00?

It is a Size S0 power contactor with 3 NO main contacts, rated 7.5 kW at 500 V and 690 V, with an AC-4 switching current of 12.5 A at 400 V and an AC-12 continuous current of 10 A. Mechanical endurance is 10 million cycles.

Where can I buy the 3RT1024-3AF00?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

Will the 3RT1024-3AF00 drop into a panel specified around the 3RT1023-1AL20?

Both are Size S0 contactors with the same 45 mm width and DIN rail mount, so the footprint is identical. The main difference is in the coil voltage and auxiliary contact configuration — verify the coil rating on your 3RT1023-1AL20 before substituting.

What is the depth of the 3RT1024-3AF00?

The listed depth is 90 mm, which fits standard 100 mm deep enclosures with clearance for wiring.

What wire sizes does the 3RT1024-3AF00 accept?

Solid conductors: 2x (0.25...2.5 mm²). Stranded: 2x (1...2.5 mm²) or 2x (2.5...6 mm²), with a maximum of 2x 10 mm² per terminal.

MPN
3RT1024-3AF00