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Siemens 3RT1034-1AM20 — Contactors

Siemens 3RT1034-1AM20 SIRIUS Power Contactor, S2 Size, 55 mm

MPN3RT1034-1AM20

Siemens SIRIUS power contactor, S2 size, 3RT1034-1AM20, screw-type terminals, 55 mm width, snap-on 35 mm DIN rail mounting.

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

3RT1034-1AM20 — Identification
ParameterValue
Contactor frame sizeS2
3RT1034-1AM20 — 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
3RT1034-1AM20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz208 V
3RT1034-1AM20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1034-1AM20 — 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
3RT1034-1AM20 — 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
3RT1034-1AM20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1034-1AM20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1034-1AM20 — Mechanical
ParameterValue
Width55 mm
Height112 mm
Depth115 mm
3RT1034-1AM20 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

Rated for 50/60 Hz operation, it carries AC-3 motor switching duty at 400 V and delivers 15 kW in AC-2 service at the same voltage. The 55 mm width and 112 mm height fit standard panel layouts with side-by-side mounting permitted.

Terminal Sizing and Wiring

Solid wire accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²). Stranded goes up to 2x (0.75 to 25 mm²) or 2x (0.75 to 16 mm²) for solid or stranded. That covers most panel power and control wiring without adapters.

Switching Rates and Coil Timing

Maximum switching rates vary by duty: 1,200 cycles/hour for AC-1 resistive loads, 1,000 for AC-3 motor starting, 750 for AC-2, and 250 for AC-4 plugging/inching. Mechanical life is typical 10,000,000 operations.

Front face is IP20 for finger-safe touch; terminal area is IP00 (no protection). Side-by-side mounting is allowed without derating in most configurations.

Frequently asked questions

What is the closest functional second-source for 3RT1034-1AM20?

The 3RT5034-1AP00 is the closest peer — same S2 frame size, screw-type main terminals, and snap-on DIN rail mounting. It will drop into the same panel footprint without rewiring, but coil voltage and rating must be matched to the application.

What are the key ratings for 3RT1034-1AM20?

AC-3 motor switching at 400 V; 15 kW at AC-2 400 V; 18.5 kW at 500 V; 10 kW at 690 V. Coil operates at 50/60 Hz with a range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz. Mechanical life is 10,000,000 cycles typical.

Where can I buy 3RT1034-1AM20?

This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

What compliance documentation does Siemens provide for 3RT1034-1AM20?

Standard Siemens SIRIUS contactors carry CE marking for the European market and are designed to meet relevant IEC/EN standards. Specific RoHS, REACH, and UL documentation is available from the manufacturer upon request.

MPN
3RT1034-1AM20