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Siemens 3RT1034-1AH00 — Contactors

Siemens 3RT1034-1AH00 SIRIUS Power Contactor, S2 Frame, 15 k

MPN3RT1034-1AH00

Siemens SIRIUS power contactor, S2 frame, 3RT1034-1AH00, screw-type terminals, 15 kW AC-2 at 400 V, 55 mm wide, snap-on DIN rail.

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

3RT1034-1AH00 — Identification
ParameterValue
Contactor frame sizeS2
3RT1034-1AH00 — 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
3RT1034-1AH00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz48 V
3RT1034-1AH00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1034-1AH00 — 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
3RT1034-1AH00 — 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
3RT1034-1AH00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1034-1AH00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1034-1AH00 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1034-1AH00 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

The headline number here is the AC-2 rating: 15 kW at 400 V. That's the motor-switching current you design around, not the AC-1 resistive load. For AC-4 duty — plugging or inching — it handles 29 A at 400 V, which is a tougher thermal cycle. The mechanical life is typical at 10 million operations, but the switching frequency tells the real story: 1 200 cycles per hour on AC-1, 1 000 on AC-3, and only 250 on AC-4. If you're jogging a conveyor drive all shift, that AC-4 limit is the one that governs contactor life, not the mechanical number.

Wiring it up

That's enough for standard motor leads up to the 16 mm² minimum at 40 °C ambient. The screw terminals are straightforward for panel builders — no special tooling, just a good Pozidriv bit and the right torque.

Frequently asked questions

What are the main dimensions for panel layout?

The contactor measures 55 mm wide, 112 mm high, and 115 mm deep, fitting a standard 35 mm DIN rail per EN 50022.

What wire sizes does the main circuit accept?

Solid wire from 2x 0.5 mm² up to 2x 4 mm², and stranded wire from 2x 0.75 mm² up to 2x 25 mm². The minimum permissible cross-section at 40 °C is 16 mm².

What is the AC-2 motor rating at 400 V?

The AC-2 rating at 400 V is 15 kW, which is the standard duty for slip-ring or wound-rotor motor applications.

MPN
3RT1034-1AH00