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Siemens 3RT6023-1AP20 — Contactors

Siemens 3RT6023-1AP20 SIRIUS Contactor, 23 kW at 400 V, S0 S

MPN3RT6023-1AP20

Siemens SIRIUS 3RT6023-1AP20, size S0 contactor, screw-type terminals, 23 kW at 400 V 60°C, AC-3 duty, 45 mm width, snap-on 35 mm DIN rail.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT6023-1AP20 — Identification
ParameterValue
Contactor frame sizeS0
3RT6023-1AP20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V10 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT6023-1AP20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz240 V
3RT6023-1AP20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6023-1AP20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 63 A
Short-circuit coordination type 2, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 25 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT6023-1AP20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 DIN rail according to DIN EN 50022
Side-by-side mountingYes
3RT6023-1AP20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6023-1AP20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6023-1AP20 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth97 mm
3RT6023-1AP20 — Specifications
ParameterValue
At AC5 000 1/h

Product details

Sourcing & Lifecycle — Active Production, No End-of-Life Signal

The 3RT6023-1AP20: Substance compliance is documented: RoHS prohibition date 05/01/2012, so the part meets the EU RoHS directive. Expect a CE declaration and RoHS certificate with the shipment.

What the Ratings Mean — S0 Frame, Motor Power, and Duty

Siemens SIRIUS size S0 contactor. AC-3 rated power at 400 V is 23 kW at 60 °C ambient. AC-3 and AC-3e maximum rated voltage is 690 V, matching the insulation voltage rating of 690 V. Mechanical life typical 10 million operations. Electrical life at AC-3 max is 1,000 operations per hour; at AC-4 it drops to 300 operations per hour.

Panel Fit — DIN Rail Mounting and Screw Terminals

Side-by-side mounting is allowed — no derating gap required between units, though the 60 °C ambient rating already accounts for the heat rise in a dense panel. Dimensions: 45 mm wide, 85 mm high, 97 mm deep. Screw-type terminals for main and auxiliary circuits.

Switching Frequency and Coil Data

Maximum switching frequency at AC is 5,000 operations per hour. For AC-1 and AC-3 the electrical max is 1,000 ops/h; for AC-4 it is 300 ops/h. Auxiliary contact ratings: 6 A at 24 V, 10 A at 230 V, 3 A at 400 V, 1 A at 690 V. These are the thermal current ratings for the built-in auxiliary contacts — enough for signaling a PLC input or driving a small relay directly.

Frequently asked questions

Will 3RT6023-1AP20 drop into a panel specified around 3RT6023-1AB00 without rewiring?

Yes — both are S0 size with the same 45 mm width, 85 mm height, 97 mm depth, and screw-type terminals. The DIN-rail mounting and side-by-side clearance are identical. The only difference is the coil voltage; if the control circuit matches the 1AP20 coil rating, it is a direct swap.

MPN
3RT6023-1AP20