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Siemens 3RT1024-1AM20 — Contactors

Siemens 3RT1024-1AM20 SIRIUS Power Contactor, S0, 5.5 kW AC-

MPN3RT1024-1AM20

Siemens SIRIUS power contactor, S0 frame, 3RT1024-1AM20, 5.5 kW at 400 V AC-2, 12.5 A AC-4, screw terminals, DIN-rail snap-on.

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

3RT1024-1AM20 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-1AM20 — 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
3RT1024-1AM20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz208 V
3RT1024-1AM20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-1AM20 — 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
3RT1024-1AM20 — 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
3RT1024-1AM20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-1AM20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1024-1AM20 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth91 mm

Product details

Siemens SIRIUS 3RT1024-1AM20 is a power contactor in the S0 frame size, rated 5.5 kW at 400 V AC-2 duty and 12.5 A at 400 V AC-4.

Wire sizes for the main circuit accept 2x (1–2.5 mm²), 2x (2.5–6 mm²), or max 2x 10 mm² stranded, with AWG equivalents 2x (16–12), 2x (14–10), or 1x 8.

Compared to the smaller-frame 3RT1016-1AG61, the S0 frame of this contactor supports higher motor ratings — 5.5 kW at 400 V AC-2 versus the 1016's lower current class. The 3RT1024-1AM20 shares the same DIN-rail footprint and terminal style as the 3RT1023-1AL20, but the 1024 carries a higher AC-4 current rating (12.5 A vs the 1023's lower figure), making it a better fit for frequent switching or reversing applications.

Frequently asked questions

Where can I buy 3RT1024-1AM20 and how is it quoted?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

Will 3RT1024-1AM20 drop into a panel specified around 3RT1023-1AL20 without rewiring?

Yes, both are S0 frame contactors with the same DIN-rail mounting and screw-type main terminals, so the 3RT1024-1AM20 fits the same panel footprint and wiring scheme.

What is the depth of 3RT1024-1AM20?

The depth is 91 mm.

What wire sizes does the main circuit accept?

The screw terminals accept 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²) for the coil/auxiliary, and for the main circuit 2x (1–2.5 mm²), 2x (2.5–6 mm²), max 2x 10 mm², with AWG equivalents 2x (16–12), 2x (14–10), 1x 8.

MPN
3RT1024-1AM20