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Siemens 3RT1017-1KF42-0LA0 — Contactors

Siemens 3RT1017-1KF42-0LA0 SIRIUS Power Contactor, 110 V Coi

MPN3RT1017-1KF42-0LA0

Siemens SIRIUS, power contactor, Size S00, 110 V coil with varistor, screw-type terminals, 45 mm width, IP20 front, DIN EN 50022 rail mount.

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

3RT1017-1KF42-0LA0 — Identification
ParameterValue
Contactor frame sizeS00
3RT1017-1KF42-0LA0 — 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 V5.5 kW
Rated value @ 690 V5.5 kW
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1017-1KF42-0LA0 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1017-1KF42-0LA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1017-1KF42-0LA0 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 35 A
Short-circuit coordination type 2, fusefuse gL/gG: 20 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1017-1KF42-0LA0 — 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), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, solid or stranded2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 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 standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1017-1KF42-0LA0 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1017-1KF42-0LA0 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Installation altitude, max.2 000 m
3RT1017-1KF42-0LA0 — Mechanical
ParameterValue
Width45 mm
Height60 mm
Depth123 mm

Product details

The 45 mm width and 60 mm height keep the DIN density tight — three of these fit in a standard 145 mm section alongside a motor starter.

Coil and switching ratings

The 110 V DC coil draws 11 W closing power and 4 W holding power. For DC switching at the coil rated voltage, the contactor is rated 1 A at 110 V, 0.3 A at 220 V. On the AC side for motor loads, it delivers 5.5 kW at 400 V under AC-2 duty and 8.5 A at 400 V under AC-4 duty. The main circuit screw terminals accept 2x (0.5…1.5 mm²), 2x (0.75…2.5 mm²), or max 2x (0.75…4 mm²) solid/stranded, with AWG equivalents 2x (20…16), 2x (18…14), 1x 12. The auxiliary and control circuit terminals are also screw-type.

Sourcing posture

This is a current-production Siemens SIRIUS contactor, sourced through independent distribution channels.

Frequently asked questions

Where can I buy 3RT1017-1KF42-0LA0?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What is the coil voltage on 3RT1017-1KF42-0LA0?

The coil rated value is 110 V DC, with an integrated varistor surge suppressor.

What is the depth of 3RT1017-1KF42-0LA0?

The depth is 123 mm, with a width of 45 mm and height of 60 mm.

What wire sizes does the 3RT1017-1KF42-0LA0 accept?

The screw terminals accept 2x (0.5…1.5 mm²), 2x (0.75…2.5 mm²), or max 2x (0.75…4 mm²) solid/stranded, with AWG equivalents 2x (20…16), 2x (18…14), 1x 12.

MPN
3RT1017-1KF42-0LA0