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Siemens 3RT2317-1BF40 — Contactors

Siemens 3RT2317-1BF40 SIRIUS Contactor, 5.5 kW AC-3, 110 V D

MPN3RT2317-1BF40
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Siemens SIRIUS 3RT2317-1BF40, Size S00 contactor, 5.5 kW at 400 V AC-3, 12 A AC-1, 110 V DC coil, screw-type terminals, 45 mm width.

Siemens 3RT2317-1BF40 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2317-1BF40 — Identification
ParameterValue
Contactor frame sizeS00
3RT2317-1BF40 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V4 kW
Rated value @ 400 V12 A
3RT2317-1BF40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2317-1BF40 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
3RT2317-1BF40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 35 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 20 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (690 V, 1 kA)
3RT2317-1BF40 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 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
3RT2317-1BF40 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2317-1BF40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2317-1BF40 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm

Product details

SIRIUS 3RT2317-1BF40 — Size S00 Contactor, 5.5 kW AC-3, 110 V DC Coil

The Siemens 3RT2317-1BF40 is a SIRIUS-brand Size S00 contactor rated for 5.5 kW motor switching at 400 V AC-3 duty and 12 A at 400 V AC-1 (resistive load). The 110 V DC coil with screw-type terminals pulls in at 0.8 x rated voltage and drops out at 1.1 x rated, giving a clean operate band for DC control circuits. Mechanical life is rated at 30 million operations, with arcing time between 10 and 15 ms and DC operate time of 7 to 13 ms — figures that matter when coordinating contactor timing in a motor starter sequence.

Panel Integration — DIN Rail Mounting and Clearances

The 45 mm width, 58 mm height, and 73 mm depth fit standard S00 panel layouts.

Main current circuit and magnet coil both use screw-type terminals. Solid conductors accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²); stranded accepts 0.5 to 4 mm². Auxiliary contacts share the same 20–12 AWG range. Two attachable auxiliary switch blocks are supported.

Frequently asked questions

Where can I buy 3RT2317-1BF40 and get a price?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the AC-3 motor rating of this contactor?

Rated at 5.5 kW at 400 V AC-3 duty, which covers most 5.5 kW three-phase induction motors in that voltage class.

What compliance documentation is available for 3RT2317-1BF40?

RoHS compliant with a substance prohibition date of October 1, 2009. Rated impulse withstand of 6 kV per IEC/EN 60947.

Will 3RT2317-1BF40 drop into a panel specified for 3RT2015-1BW42?

Both are Size S00 contactors on the same 45 mm DIN-rail footprint, so the mechanical fit and terminal layout are identical. The main difference is the coil voltage — 3RT2317-1BF40 uses 110 V DC, while 3RT2015-1BW42 uses a different coil. Verify coil supply before substitution.

MPN
3RT2317-1BF40