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Siemens 3RT1023-1AP04-1AA0 — Contactors

Siemens 3RT1023-1AP04-1AA0 SIRIUS Contactor, 3 NO, 5.5 kW at

MPN3RT1023-1AP04-1AA0

Siemens SIRIUS power contactor, size S0, 3 NO main contacts, screw terminals, 4.5 kW at 500 V / 5.5 kW at 690 V, 45 mm wide, 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

3RT1023-1AP04-1AA0 — Identification
ParameterValue
Contactor frame sizeS0
3RT1023-1AP04-1AA0 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V8.5 A
Rated value @ 400 V3 A
Rated value @ 500 V4.5 kW
Rated value @ 690 V5.5 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
3RT1023-1AP04-1AA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RT1023-1AP04-1AA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1023-1AP04-1AA0 — 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
3RT1023-1AP04-1AA0 — 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
3RT1023-1AP04-1AA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1023-1AP04-1AA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1023-1AP04-1AA0 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth140 mm

Product details

Siemens 3RT1023-1AP04-1AA0 — SIRIUS S0 Power Contactor, 3 NO, Screw Terminals

It carries 3 normally-open main contacts and is rated for 4.5 kW at 500 V and 5.5 kW at 690 V, making it suitable for 400 V class motors in European and export panels. The 85 mm height and 140 mm depth fit standard S0 enclosure cutouts.

Termination and Wiring

Main circuit terminals are screw-type, accepting 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or max 2x (0.75–4 mm²) solid conductors. For stranded wire, the range is 2x (1–2.5 mm²), 2x (2.5–6 mm²), or max 2x 10 mm². AWG equivalents: 2x (16–12), 2x (14–10), or 1x 8. The auxiliary contact block (2 instantaneous contacts) uses the same screw-clamp system. Strip length and torque follow standard S0 terminal specs — no special tooling needed.

For Type 1 coordination (contactor may need replacement after fault), use gL/gG 63 A. The pollution degree 3 rating means it tolerates conductive dust and humidity typical of industrial enclosures without conformal coating.

Frequently asked questions

What are the main contact ratings for 3RT1023-1AP04-1AA0?

Three NO main contacts rated 4.5 kW at 500 V and 5.5 kW at 690 V. AC-4 switching current is 8.5 A at 400 V.

What is the depth of 3RT1023-1AP04-1AA0?

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

What wire sizes does the 3RT1023-1AP04-1AA0 accept?

Solid conductors: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). Stranded: 2x (1–2.5 mm²), 2x (2.5–6 mm²), max 2x 10 mm². AWG: 2x (16–12), 2x (14–10), 1x 8.

Where can I buy 3RT1023-1AP04-1AA0 and how is it quoted?

Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here.

MPN
3RT1023-1AP04-1AA0