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Siemens 3RT2023-1BF40 — Contactors

Siemens SIRIUS 3RT2023-1BF40 Power Contactor, S0, 110 VAC Co

MPN3RT2023-1BF40
Active

Siemens SIRIUS 3RT2023-1BF40 power contactor, S0 frame, 110 V AC coil, screw-type terminals, 45 mm wide, 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

3RT2023-1BF40 — Identification
ParameterValue
Contactor frame sizeS0
3RT2023-1BF40 — 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
3RT2023-1BF40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2023-1BF40 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2023-1BF40 — 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)
3RT2023-1BF40 — 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2023-1BF40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2023-1BF40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2023-1BF40 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm

Product details

It mounts on a 35 mm DIN rail per DIN EN 60715, with screw and snap-on fastening, and accepts a wide mounting position range — ±180° rotation on a vertical surface and ±22.5° tilt forward/backward. Rated control supply voltage is 110 V AC, with an operating range factor of 0.8 x to 1.1 x the rated value. The magnet coil uses screw-type terminals.

Main contacts are rated for 16 A to 8 A (likely AC-3 duty), which covers common small-to-medium motor loads up to about 7.5 kW at 400 V. The auxiliary switch is present, with contact ratings that vary by voltage: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. Switching frequency reaches 1 000 operating cycles per hour for AC-1, AC-2, AC-3, and AC-3e duty, dropping to 300 cycles/h for AC-4 (plugging/reversing). Mechanical service life is typical 10 000 000 operations. Wire range for main and auxiliary circuits: solid or stranded 1 … 10 mm², with fine-stranded (ferruled) 2x (0.5 … 1.5 mm²) or 2x (0.75 … 2.5 mm²).

Frequently asked questions

What are the key dimensions and mounting requirements?

Width is 45 mm, height 85 mm, depth 107 mm. It mounts on a 35 mm DIN rail per DIN EN 60715 with screw and snap-on fastening. Clearance distances: 10 mm upwards, forwards, and downwards; 6 mm at the side.

What wire sizes does the 3RT2023-1BF40 accept?

Solid or stranded wire from 1 to 10 mm² for main and auxiliary circuits. Fine-stranded (ferruled) connections: 2x (0.5 … 1.5 mm²) or 2x (0.75 … 2.5 mm²).

MPN
3RT2023-1BF40