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Siemens 3RT1024-1AG20 — Contactors

Siemens 3RT1024-1AG20 SIRIUS Power Contactor, S0, 7.5 kW at

MPN3RT1024-1AG20

Siemens SIRIUS power contactor, size S0, 3RT1024-1AG20, 7.5 kW at 690 V AC-3, screw terminals, 45 mm width, IP20 front.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT1024-1AG20 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-1AG20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
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
3RT1024-1AG20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1024-1AG20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-1AG20 — 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
3RT1024-1AG20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control 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, solid or stranded2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1024-1AG20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-1AG20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Installation altitude, max.2 000 m
3RT1024-1AG20 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

Rated for AC-3 duty at 7.5 kW on both 500 V and 690 V supplies, this contactor handles the motor starting and stopping that drives pumps, conveyors, and compressors in industrial lines. The 45 mm width and 85 mm height keep it compact for dense panel builds. Front-side protection is IP20, so it's safe for finger contact inside an enclosure; the terminals themselves are IP00, meaning the wiring compartment expects enclosure protection from the panel builder.

The AC-4 rating of 12.5 A at 400 V is the one that governs frequent inching or plugging duty — if your application cycles the motor on and off under load, this is the current limit that matters, not the higher AC-3 figure. Auxiliary contact ratings cover 24 V at 10 A down to 220 V at 0.3 A, so the same block handles both PLC-level signals and small relay loads without a separate interface.

Main and auxiliary circuits use screw-type terminals. Main terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded — that covers most panel wire sizes up to 4 mm². Auxiliary terminals take 2x (1 to 2.5 mm²) solid or stranded, or max 2x 10 mm². For Type 2 coordination (no-weld fault clearing), the required upstream fuse is 25 A gL/gG. For Type 1 coordination (device may be damaged but arc contained), the fuse can go up to 63 A gL/gG. This matters when you're coordinating with the MCCB or fuse in the feeder.

Substance prohibition per RoHS applies from July 1, 2006, so the part is RoHS-compliant for EU and most global markets. The IEC 81346-2 reference code is Q, which designates it as a switching device in the plant documentation standard.

Frequently asked questions

What is the depth of the 3RT1024-1AG20?

The depth is 91 mm, with a width of 45 mm and height of 85 mm.

What wire sizes does the 3RT1024-1AG20 accept on the main terminals?

Main screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded. Auxiliary terminals accept 2x (1 to 2.5 mm²) solid or stranded, or max 2x 10 mm².

Will 3RT1024-1AG20 drop into a panel specified around 3RT1017-1AP01 without rewiring?

Both are S0 frame size with the same 45 mm width and DIN-rail mounting, so the physical footprint and terminal layout are identical. No rewiring is needed for the panel cutout or rail position, but verify the load current doesn't exceed the 3RT1017-1AP01's lower rating if you're swapping the other direction.

What compliance documentation does Siemens provide for 3RT1024-1AG20?

The part carries RoHS compliance with a substance prohibition date of July 1, 2006. The IEC 81346-2 reference code is Q. Standard Siemens SIRIUS documentation includes the CE declaration and UL/CSA file numbers per the series.

MPN
3RT1024-1AG20