Skip to main content
Log in
Siemens 3RT1034-1AD20-ZX95 — Contactors

Siemens 3RT1034-1AD20-ZX95 SIRIUS Power Contactor, 18.5 kW a

MPN3RT1034-1AD20-ZX95

Siemens SIRIUS power contactor, size S2, screw-type terminals, 18.5 kW at 500 V AC-3, DIN-rail mount, IP20 front.

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

3RT1034-1AD20-ZX95 — Identification
ParameterValue
Contactor frame sizeS2
3RT1034-1AD20-ZX95 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V29 A
Rated value @ 400 V3 A
Rated value @ 500 V18.5 kW
Rated value @ 690 V10 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
3RT1034-1AD20-ZX95 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz42 V
3RT1034-1AD20-ZX95 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1034-1AD20-ZX95 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 125 A
Short-circuit coordination type 2, fusefuse gL/gG: 63 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1034-1AD20-ZX95 — 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 (0.75 ... 16 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
3RT1034-1AD20-ZX95 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1034-1AD20-ZX95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1034-1AD20-ZX95 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1034-1AD20-ZX95 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

It is rated for 18.5 kW at 500 V under AC-3 duty, which is the standard category for starting and stopping squirrel-cage motors during running — the rating that governs real motor-switching fit, not the higher AC-1 resistive current.

Side-by-side mounting is supported, so multiple contactors pack tightly in a row without derating when ambient stays within the -25 to +60 °C operating range.

Termination and wiring

Main circuit terminals are screw-type, accepting 2x (0.5...1.5 mm²) solid, 2x (0.75...2.5 mm²) solid, or up to 2x (0.75...4 mm²) solid max. The terminal body is IP00; the front face is IP20 for basic finger-safe touch protection in the enclosure.

Frequently asked questions

What is the motor rating for this contactor?

It is rated at 18.5 kW at 500 V under AC-3 duty, and 10 kW at 690 V AC-3. For AC-2 duty (slip-ring motors), it is rated at 15 kW at 400 V.

What wire sizes does the screw terminal accept?

Solid conductors: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), max 2x (0.75...4 mm²). Stranded: 2x (0.75...25 mm²).

MPN
3RT1034-1AD20-ZX95