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Siemens 3RT2023-1BB40-1AA0-ZW96 — Contactors

Siemens 3RT2023-1BB40-1AA0-ZW96 SIRIUS Power Contactor, 24 V

MPN3RT2023-1BB40-1AA0-ZW96
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Siemens SIRIUS power contactor, 3RT2023-1BB40-1AA0-ZW96, Size S0, 24 VDC coil, screw-type terminals, 45 mm width, current production.

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

3RT2023-1BB40-1AA0-ZW96 — Identification
ParameterValue
Contactor frame sizeS0
3RT2023-1BB40-1AA0-ZW96 — 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
3RT2023-1BB40-1AA0-ZW96 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2023-1BB40-1AA0-ZW96 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2023-1BB40-1AA0-ZW96 — 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)
3RT2023-1BB40-1AA0-ZW96 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid1 ... 10 mm²
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 standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2023-1BB40-1AA0-ZW96 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2023-1BB40-1AA0-ZW96 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2023-1BB40-1AA0-ZW96 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm

Product details

The preferred mounting position is standing on a horizontal surface. The Size S0 footprint is compact enough for dense panel layouts.

Wiring and terminal capacity

For auxiliary circuits, the terminal accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). The coil connection uses screw-type terminals. This covers most panel wiring up to 10 mm² without needing adapters.

Switching ratings and operating conditions

Rated for 10 A at 24 VDC, with derated values at higher voltages: 2 A at 48 VDC, 2 A at 60 VDC, 1 A at 110 VDC, 0.9 A at 125 VDC, 0.3 A at 220 VDC, and 3 A at 400 VDC. The contactor is rated for 1 hp at 230 V. Maximum switching frequency is 1,000 cycles per hour for AC-1, AC-2, AC-3, and AC-3e duty, and 300 cycles per hour for AC-4 duty.

Frequently asked questions

What is the closest functional second-source for this contactor?

The closest peer is the 3RT2023-1BB44-ZX95, which shares the same Size S0 frame and 24 VDC coil voltage. The primary difference is the coil termination type — the -1BB44 uses a different terminal arrangement. Verify the coil terminal style matches your panel wiring before substituting.

What are the key ratings for this contactor?

The contactor is rated for 10 A at 24 VDC on the main contacts, with a 24 VDC coil. It is Size S0, 45 mm wide, and accepts conductors up to 10 mm² solid or stranded. Mechanical life is 10 million operations typical.

Will this contactor drop into a panel specified for the 3RT2023-1BB44-ZX95?

Both are Size S0 with the same 45 mm width and DIN-rail mounting, so the mechanical footprint is identical. The difference is in the coil terminal type — the -1BB40 uses screw-type terminals; the -1BB44 uses a different termination. If your panel wiring expects screw terminals, this is a direct mechanical and electrical fit. If the panel uses a different coil connector, verify compatibility before ordering.

MPN
3RT2023-1BB40-1AA0-ZW96