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Siemens 3RT2017-2LB42-0LA0 — Contactors

Siemens 3RT2017-2LB42-0LA0 SIRIUS Power Contactor, 24 V DC C

MPN3RT2017-2LB42-0LA0
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Siemens SIRIUS power contactor, size S00, 24 V DC coil, spring-type terminals, 45 mm width, screw and snap-on DIN rail mounting, 3RT2017-2LB42-0LA0.

Siemens 3RT2017-2LB42-0LA0 datasheet (PDF)
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

3RT2017-2LB42-0LA0 — Identification
ParameterValue
Contactor frame sizeS00
3RT2017-2LB42-0LA0 — 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
3RT2017-2LB42-0LA0 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2017-2LB42-0LA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT2017-2LB42-0LA0 — 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)
3RT2017-2LB42-0LA0 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 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
3RT2017-2LB42-0LA0 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2017-2LB42-0LA0 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2017-2LB42-0LA0 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth121 mm

Product details

Siemens SIRIUS 3RT2017-2LB42-0LA0 Power Contactor — 24 V DC Coil, Size S00, Spring-Type Terminals

The Siemens SIRIUS 3RT2017-2LB42-0LA0 is a size S00 power contactor with a 24 V DC coil and spring-type terminals, designed for screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715. Rated operational current at 24 V DC is 10 A. The 45 mm width and 70 mm height fit standard panel layouts, with a depth of 121 mm that clears most enclosure backplates.

Terminal and Wiring Data

Solid conductors: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), 2x 4 mm²; solid or stranded: 2x (0.5–4 mm²). The coil connection uses spring-type terminals, reducing wiring time and eliminating screw torque checks.

Frequently asked questions

What is the depth of 3RT2017-2LB42-0LA0?

The depth is 121 mm.

What conductor sizes does the spring terminal accept?

Solid: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), 2x 4 mm²; solid or stranded: 2x (0.5–4 mm²).

MPN
3RT2017-2LB42-0LA0