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Siemens 3RT2017-1FB42 — Contactors

Siemens 3RT2017-1FB42 SIRIUS Power Contactor, 24 VDC Coil, S

MPN3RT2017-1FB42
Active

Siemens SIRIUS power contactor, Size S00, 24 VDC coil, screw-type terminals, 20–12 A main contact range, snap-on DIN rail mounting.

$76.61Ref. 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

3RT2017-1FB42 — Identification
ParameterValue
Contactor frame sizeS00
3RT2017-1FB42 — 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
3RT2017-1FB42 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2017-1FB42 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2017-1FB42 — 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)
3RT2017-1FB42 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid0.5 ... 4 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
3RT2017-1FB42 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2017-1FB42 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2017-1FB42 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm

Product details

The 24 VDC coil (screw-type terminals) pulls in reliably across the rated control voltage, and the main contact range of 20 to 12 A covers small motors, pumps, and conveyor drives up to the AC-3 duty class.

Duty-cycle and switching-frequency limits

Maximum switching frequency depends on the load type: 1,000 operations per hour at AC-1 (resistive), 750/h at AC-2 and AC-3 (motor start/run), and 250/h at AC-4 (plugging/inching). The AC-3e rating also caps at 750/h. These numbers set the practical cycle limit for a given application — exceeding them accelerates contact wear, especially on inductive loads where arcing time runs 10 to 15 ms.

Auxiliary contact ratings across voltages

The built-in auxiliary switch handles control-circuit signaling at various DC voltage levels: 10 A at 24 V, 2 A at 48 V or 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. For AC motor loads, the 230 V rating is given as 2 hp. These values define the signal-switching capability for PLC inputs, indicator lamps, or interlock circuits — derate if the auxiliary contacts drive solenoids or small contactor coils directly.

Wiring and conductor sizes

For double conductors, the range is 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². The 58 mm height and 45 mm width leave room for finger-safe wiring without cramping — standard for a Size S00 contactor on a DIN rail.

Frequently asked questions

Where can I buy 3RT2017-1FB42 and get current pricing?

We source 3RT2017-1FB42 to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm landed cost and lead time.

What are the key specifications of 3RT2017-1FB42?

It is a Size S00 power contactor with a 24 VDC coil, screw-type terminals, main contact range 20–12 A, auxiliary contacts rated 10 A at 24 VDC, mechanical life 30 million operations, and snap-on DIN rail mounting.

What compliance documentation does Siemens provide for 3RT2017-1FB42?

Siemens provides RoHS, REACH, UL, and IEC compliance documentation for the SIRIUS contactor series. Specific declarations are available upon request with the RFQ.

MPN
3RT2017-1FB42