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Siemens 3RT1034-3AU00 — Contactors

Siemens 3RT1034-3AU00 SIRIUS Power Contactor, S2 Frame, 15 k

MPN3RT1034-3AU00

Siemens SIRIUS power contactor, 3RT1034-3AU00, S2 frame, screw terminals, 15 kW AC-2 at 400 V, 29 A AC-4, DIN rail snap-on.

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

3RT1034-3AU00 — Identification
ParameterValue
Contactor frame sizeS2
3RT1034-3AU00 — 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
3RT1034-3AU00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz240 V
3RT1034-3AU00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1034-3AU00 — 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
3RT1034-3AU00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, solid or stranded2x (0.75 ... 16 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1034-3AU00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1034-3AU00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1034-3AU00 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1034-3AU00 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

Rated for 15 kW at AC-2 duty at 400 V — that's the category for starting and stopping slip-ring motors or wound-rotor loads where the contactor closes before the motor reaches full speed. At 500 V it delivers 18.5 kW, and at 690 V it delivers 10 kW, so it suits 480 V and 600 V class systems common in North American and export panels.

Termination and wiring constraints

Main current circuit uses screw terminals. Solid conductors accept 2x (0.25 to 2.5 mm²); stranded accepts 2x (0.75 to 25 mm²). The larger stranded range means you can land a 16 mm² feed at 40 °C ambient without an adapter — that's the minimum permissible cross-section at that temperature. Front face is IP20 (finger-safe), terminals are IP00 — open terminal protection, so panel builders need to account for clearance in the enclosure layout.

Mechanical envelope and operating conditions

Dimensions: 112 mm high, 55 mm wide, 115 mm deep. Coil draw at 24 V is 10 A, at 60 V is 2 A, at 110 V is 1 A, at 220 V is 0.3 A — these are the steady-state holding currents, not inrush.

Frequently asked questions

What compliance documentation does the 3RT1034-3AU00 carry?

RoHS compliance is confirmed with a substance prohibitance date of May 1, 2012. The part is a Siemens SIRIUS product, so standard CE, UL, CSA, and IEC declarations are available from the manufacturer.

Will 3RT1034-3AU00 drop into a panel specified for 3RT5034-1BW40?

Both are S2 frame contactors with the same DIN rail footprint and screw terminal pattern, so mechanical fit is identical. The difference is in the coil voltage and switching ratings — verify the coil draw against your control transformer before swapping.

Where can I buy 3RT1034-3AU00 and get current pricing?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm number.

MPN
3RT1034-3AU00