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Siemens 3RT2017-2KB42 — Contactors

Siemens 3RT2017-2KB42 SIRIUS Contactor, 24 VDC Coil, S00

MPN3RT2017-2KB42
Active

Siemens SIRIUS, coupling contactor, size S00, 3RT2017-2KB42, 24 VDC coil, spring-type terminals, 45 x 70 x 73 mm.

$26.67 – $75.70Ref. price · indicative, final on quote
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

3RT2017-2KB42 — Identification
ParameterValue
Contactor frame sizeS00
3RT2017-2KB42 — 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 V2 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2017-2KB42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2017-2KB42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2017-2KB42 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 50A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)
Short-circuit coordination type 2, fusegG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2017-2KB42 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid0.5 ... 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2017-2KB42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RT2017-2KB42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2017-2KB42 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm

Product details

It's a current-production part, so no lifecycle surprises for a BOM freeze. Rated for DC switching: 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. That covers the common control-voltage taps you'll find in a panel — 24 VDC gets the full 10 A, and the derating at higher voltages is clean. Mechanical life is typical at 30,000,000 operations. Switching frequency: 1,000 cycles/hour for AC-1, 750 for AC-2 and AC-3, 250 for AC-4.

Mounting and wiring in the panel

The S00 footprint is compact: 45 mm wide, 70 mm tall, 73 mm deep. That's useful when you're squeezing it into a tight enclosure corner. Spring-type terminals accept solid or stranded wire 0.5 to 4 mm², or 2x (0.5 to 4 mm²). No screwdriver torque to worry about — just strip and push. That's tight enough for a dense DIN-rail layout. Main contacts are configured as 20... 12. No built-in auxiliary switch.

Environmental and operating limits

Coil pickup threshold is 0.7 x rated value. Dropout time at DC is 7 to 20 ms; arcing time 10 to 15 ms.

Frequently asked questions

What is the depth of 3RT2017-2KB42?

The depth is 73 mm. Overall dimensions are 45 mm wide by 70 mm tall by 73 mm deep.

What wire sizes does the 3RT2017-2KB42 accept?

The spring-type terminals accept solid or stranded wire from 0.5 to 4 mm², or two wires of the same cross-section.

MPN
3RT2017-2KB42