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Siemens 3RT1024-1AF04 — Contactors

Siemens 3RT1024-1AF04 SIRIUS Power Contactor, S0, 24 VDC, 10

MPN3RT1024-1AF04

Siemens SIRIUS power contactor, S0 frame, 3-pole, 24 VDC coil, screw terminals, 10 A rated operational current at AC-12, 45 mm width, IP20 front.

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

3RT1024-1AF04 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-1AF04 — 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
3RT1024-1AF04 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1024-1AF04 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-1AF04 — 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
3RT1024-1AF04 — 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
3RT1024-1AF04 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-1AF04 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1024-1AF04 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

Siemens 3RT1024-1AF04 SIRIUS Power Contactor — S0 Frame, 24 VDC Coil

The Siemens 3RT1024-1AF04 is a SIRIUS power contactor in the compact S0 frame, rated for 24 VDC coil voltage and 10 A at AC-12 duty. The 10 A AC-12 rating means this contactor handles resistive loads up to that current in control circuits — typical for switching heaters, lamps, or transformer primaries. For motor loads, the AC-2 rating at 400 V is 5.5 kW, and AC-4 at 400 V is 12.5 A, covering reversing or plugging duty cycles.

The S0 frame takes 45 mm width on the rail, with side-by-side mounting permitted — no derating gap needed for adjacent units. Wire range for main contacts: solid/stranded 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). AWG equivalents: 2x (16–12), 2x (14–10), 1x 8. Strip length and ferrule sizing follow standard Siemens practice for screw terminals.

This lets the panel designer balance protection level against fuse size and selectivity with upstream devices.

Frequently asked questions

What is the depth of 3RT1024-1AF04?

The depth is 140 mm, with a width of 45 mm and height of 85 mm.

What wire sizes does the main contact terminal accept?

Solid/stranded: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). AWG: 2x (16–12), 2x (14–10), 1x 8.

Where can I buy 3RT1024-1AF04?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time.

Will 3RT1024-1AF04 drop into a panel specified around 3RT1023-1AL20?

Both are S0 frame contactors on the same 45 mm DIN-rail footprint, so the mechanical fit is identical. Verify coil voltage and auxiliary contact configuration — the 3RT1024-1AF04 uses a 24 VDC coil and has no built-in aux contacts (instantaneous contact count is 2, but those are main pole NO/NC counts).

MPN
3RT1024-1AF04