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Siemens 3RT1034-1AL20-ZW96 — Contactors

Siemens 3RT1034-1AL20-ZW96 SIRIUS Power Contactor, S2, 18.5

MPN3RT1034-1AL20-ZW96

Siemens SIRIUS power contactor, size S2, order code 3RT1034-1AL20-ZW96, rated 18.5 kW at 500 V, screw-type terminals, 55 mm wide.

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

3RT1034-1AL20-ZW96 — Identification
ParameterValue
Contactor frame sizeS2
3RT1034-1AL20-ZW96 — 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
3RT1034-1AL20-ZW96 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RT1034-1AL20-ZW96 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1034-1AL20-ZW96 — 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
3RT1034-1AL20-ZW96 — 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
3RT1034-1AL20-ZW96 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1034-1AL20-ZW96 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1034-1AL20-ZW96 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1034-1AL20-ZW96 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

It is rated for 18.5 kW at 500 V and 10 kW at 690 V, with an AC-3 switching rate of up to 1,000 operations per hour. The contactor handles a 15 kW motor in AC-2 duty at 400 V. These ratings mean it is sized for medium-horsepower induction motors — think pumps, fans, and compressors on a 400 V or 480 V line.

The front is IP20 rated; the terminal area is IP00 — standard for enclosed panel installation.

Environmental and switching specs

Coil operates at 50/60 Hz with a voltage tolerance of 0.8 to 1.1 times rated (50 Hz) and 0.85 to 1.1 times rated (60 Hz). Mechanical life is 10 million cycles typical.

Frequently asked questions

What are the key ratings for this contactor?

It is rated 18.5 kW at 500 V and 10 kW at 690 V in AC-3 duty. In AC-2 at 400 V it handles 15 kW. The 24 V DC auxiliary contact is rated 10 A. Mechanical life is 10 million cycles.

What wire sizes does the screw terminal accept?

Solid wire: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², max 2x 0.75 to 4 mm². Stranded: 2x 0.75 to 25 mm².

What is the mounting method and dimensions?

Screw or snap-on mounting onto 35 mm DIN rail per DIN EN 50022. Width 55 mm, height 112 mm, depth 115 mm. Side-by-side mounting is supported.

MPN
3RT1034-1AL20-ZW96