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Siemens 3RT1017-1HB42-ZW95 — Contactors

Siemens 3RT1017-1HB42-ZW95 SIRIUS Power Contactor, Size S00,

MPN3RT1017-1HB42-ZW95

Siemens SIRIUS power contactor, size S00, 3RT1017-1HB42-ZW95, 24 VDC coil, 45 mm wide, screw terminals, IP20.

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

3RT1017-1HB42-ZW95 — Identification
ParameterValue
Contactor frame sizeS00
3RT1017-1HB42-ZW95 — Ratings & Performance
ParameterValue
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
3RT1017-1HB42-ZW95 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1017-1HB42-ZW95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1017-1HB42-ZW95 — 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
3RT1017-1HB42-ZW95 — Connection & Mounting
ParameterValue
Main 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, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1017-1HB42-ZW95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
3RT1017-1HB42-ZW95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1017-1HB42-ZW95 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

The magnet coil is rated 24 VDC, with a closing and holding power of 2.3 W — a low-hold design that reduces heat buildup in the panel and lets you use a smaller DC supply than an equivalent AC coil. If your application is AC-3 (normal starting of squirrel-cage motors), the contactor handles higher currents; the AC-4 figure is the conservative one for high-stress cycles. The auxiliary contact block (integrated) carries 10 A at 24 VDC, 6 A at 230 V, and 3 A at 400 V — these are the ratings for the built-in N/O and N/C contacts used in control logic or signaling. Short-circuit coordination is specified: type 2 coordination requires a gL/gG fuse of 20 A; type 1 allows up to 35 A. That means with a 20 A fuse, the contactor remains usable after a fault; with a 35 A fuse, it may need replacement but the circuit clears.

Main current circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded conductors. AWG equivalents are 2x (20 to 16), 2x (18 to 14), and 1x 12. This covers most panel wiring up to 4 mm² without needing ferrule adapters.

Environmental and Protection

Above that, expect reduced dielectric strength and switching capacity.

Frequently asked questions

What is the closest functional alternative if I need a different coil voltage?

The closest peer is the 3RT1017-1AP01, which uses a 24 VAC 50/60 Hz coil instead of the 24 VDC coil on this unit. The mechanical and contact ratings are identical — same size S00, same 45 mm width, same AC-4 current — so it drops into the same panel footprint without rewiring the power circuit. Only the coil supply changes.

What are the key ratings for this contactor?

Coil: 24 VDC, 2.3 W. Main contacts: AC-4 at 400 V is 8.5 A; auxiliary contacts carry 10 A at 24 VDC, 6 A at 230 V, 3 A at 400 V. Short-circuit coordination: type 2 with 20 A gL/gG fuse, type 1 with 35 A. Dimensions: 45 mm wide, 57.5 mm high, 72 mm deep.

What wire sizes does it accept?

Screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid/stranded. AWG: 2x (20 to 16), 2x (18 to 14), 1x 12.

MPN
3RT1017-1HB42-ZW95