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Siemens 3RT2517-2BW40 — Contactors

Siemens 3RT2517-2BW40 SIRIUS Contactor, Size S00

MPN3RT2517-2BW40
Active

Siemens SIRIUS contactor, Size S00, 3RT2517-2BW40, spring-loaded terminals for main circuit, screw and snap-on mounting on 35 mm DIN rail.

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

3RT2517-2BW40 — Identification
ParameterValue
Contactor frame sizeS00
3RT2517-2BW40 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 230 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2517-2BW40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2517-2BW40 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts2
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2517-2BW40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 35 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 20A (690V, 100kA)
Aux. switch short-circuit protection, fusefuse gG: 10 A
3RT2517-2BW40 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.5 ... 4 mm²)
Conductor cross-section, solid or stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT2517-2BW40 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2517-2BW40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2517-2BW40 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm
3RT2517-2BW40 — Specifications
ParameterValue
At AC10 000 1/h

Product details

The coil termination is also spring-type, so no screwdriver torque check on those either. Rated operational currents are specified per voltage and duty: at 24 V rated value it carries 10 A, at 48 V rated value 2 A, at 60 V rated value 2 A, at 110 V rated value 1 A, at 125 V rated value 2 A, at 220 V rated value 0.3 A, at 230 V rated value 10 A, at 400 V rated value 3 A, at 440 V rated value 0.8 A, and at 600 V rated value 0.1 A. These are the currents the contactor can switch at those voltages — pick the row that matches your control voltage and load type. The auxiliary switch is present, so you get a built-in N.O./N.C. set for feedback or status indication without adding a side-mount block. Mechanical life of the contactor typical is 30,000,000 operations — that's the rated endurance before wear-out, not a guarantee, but it sets expectations for high-cycle applications.

That's the standard top-hat rail in every control panel. Dimensions: 45 mm width, 70 mm height, 73 mm depth. That means you can gang them tight on the rail without extra spacing except the 6 mm side gap — useful when packing multiple contactors in a row. If the panel ambient pushes past 60 °C, you need to derate or move the contactor to a cooler zone.

Frequently asked questions

What is the coil voltage of 3RT2517-2BW40?

Buyers need to verify compatibility with their control voltage before ordering.

Where can I buy 3RT2517-2BW40 with low price?

Price is a top decision factor for sourcing buyers; they compare distributors.

Is 3RT2517-2BW40 in stock?

Stock availability determines if the part can be shipped immediately for urgent repairs or production.

What is the replacement for 3RT2517-2BW40?

Maintenance techs and buyers need to know if this part can be substituted if unavailable.

What are the dimensions of 3RT2517-2BW40?

Design engineers need to ensure the contactor fits in the panel space.

Is 3RT2517-2BW40 obsolete?

Brokers and long-term buyers need lifecycle status to avoid end-of-life issues.

MPN
3RT2517-2BW40