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Siemens 3RT2023-2BB40-0CC0 — Contactors

Siemens 3RT2023-2BB40-0CC0 SIRIUS Power Contactor, 24 VDC Co

MPN3RT2023-2BB40-0CC0
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Siemens SIRIUS 3RT2023-2BB40-0CC0, power contactor, S0 frame, 24 VDC coil, spring-type terminals, 45 mm width.

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

Specifications

3RT2023-2BB40-0CC0 — Identification
ParameterValue
Contactor frame sizeS0
3RT2023-2BB40-0CC0 — 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
3RT2023-2BB40-0CC0 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2023-2BB40-0CC0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2023-2BB40-0CC0 — 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)
3RT2023-2BB40-0CC0 — 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 standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2023-2BB40-0CC0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2023-2BB40-0CC0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2023-2BB40-0CC0 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth107 mm

Product details

The 24 VDC coil draws 10 A at its rated value, and the contactor is rated for 1 000 switching cycles per hour under AC-1, AC-2, AC-3, and AC-3e duty, dropping to 300 cycles per hour under AC-4. It mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 60715, and the mounting position allows +/-180° rotation on a vertical surface plus +/-22.5° tilt forward and backward.

The S0 frame size and 45 mm width mean it occupies the same panel footprint as other S0 contactors in the SIRIUS family, making it a straightforward BOM line item for new builds or replacements.

Integration Notes

Spring-type terminals accept solid or stranded wire from 1 to 10 mm², or two conductors of 0.5 to 2.5 mm² each, which covers most control and power wiring in a standard panel.

Frequently asked questions

What are the key dimensions and mounting requirements?

The contactor measures 102 mm high, 45 mm wide, and 107 mm deep. It mounts on a 35 mm DIN rail per DIN EN 60715, with clearance requirements of 10 mm upwards, forwards, and downwards, and 6 mm to the side.

What wire sizes does the spring terminal accept?

The spring-type terminals accept solid or stranded wire from 1 to 10 mm², or two conductors of 0.5 to 2.5 mm² each.

What is the coil voltage and contact rating?

The coil is rated for 24 VDC and draws 10 A at that voltage. The contactor is rated for 1 000 switching cycles per hour under AC-1, AC-2, AC-3, and AC-3e duty, and 300 cycles per hour under AC-4 duty.

MPN
3RT2023-2BB40-0CC0