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Siemens 3RT2023-2AH00 — Contactors

Siemens 3RT2023-2AH00 SIRIUS Power Contactor, Size S0, 24 VD

MPN3RT2023-2AH00
Active

Siemens SIRIUS 3RT2023-2AH00 power contactor, Size S0, 24 VDC coil, spring-type terminals, screw and snap-on mounting onto 35 mm DIN rail.

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

Specifications

3RT2023-2AH00 — Identification
ParameterValue
Contactor frame sizeS0
3RT2023-2AH00 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V8.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V1 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2023-2AH00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz48 V
3RT2023-2AH00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2023-2AH00 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)
Short-circuit coordination type 2, fusegG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2023-2AH00 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2023-2AH00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2023-2AH00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2023-2AH00 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth97 mm
3RT2023-2AH00 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

Panel fit and switching duty

It fastens via screw or snap-on mounting onto 35 mm DIN rail per DIN EN 60715, with a mounting position that allows ±180° rotation on a vertical surface and ±22.5° forward/backward tilt — useful when panel layout forces an unconventional orientation. The 24 VDC coil is terminated with spring-type terminals, and the main contacts accept solid or stranded conductors from 1 to 10 mm² (or 2× 0.5 to 2.5 mm²). Switching frequency reaches 1 000 operating cycles per hour under AC-1, AC-2, AC-3, and AC-3e duty; AC-4 (plugging/inching) is limited to 300 cycles/h. That means the contactor can handle frequent start/stop cycles on conveyors or pumps, but should be derated for applications requiring repetitive jogging or reversing.

Dimensions and clearances

The contactor measures 102 mm high, 45 mm wide, and 97 mm deep. These clearances should be maintained inside the enclosure to avoid thermal derating, especially when switching at the maximum cycle rate.

Frequently asked questions

What is 3RT2023-2AH00's listed depth?

The 3RT2023-2AH00 has a depth of 97 mm.

What conductor sizes does the 3RT2023-2AH00 accept?

The main contacts accept solid or stranded conductors from 1 to 10 mm², or 2× 0.5 to 2.5 mm².

MPN
3RT2023-2AH00