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Siemens 3RT1034-3AG16 — Contactors

Siemens 3RT1034-3AG16 SIRIUS Power Contactor, Size S2, 18.5

MPN3RT1034-3AG16

Siemens SIRIUS power contactor, Size S2, order code 3RT1034-3AG16, 18.5 kW at 500 V, screw-type terminals, IP20 front / IP00 terminal area, current lifecycle stage.

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

3RT1034-3AG16 — Identification
ParameterValue
Contactor frame sizeS2
3RT1034-3AG16 — 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
3RT1034-3AG16 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz100 V
3RT1034-3AG16 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1034-3AG16 — 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
3RT1034-3AG16 — 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
3RT1034-3AG16 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1034-3AG16 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1034-3AG16 — Mechanical
ParameterValue
Width75 mm
Height112 mm
Depth115 mm
3RT1034-3AG16 — Specifications
ParameterValue
At AC7 ... 20 ms

Product details

The Siemens 3RT1034-3AG16 is a SIRIUS power contactor in the Size S2 frame, rated for 18.5 kW at 500 V and 29 A in AC-4 duty at 400 V.

The 18.5 kW at 500 V rating (AC-3) tells you this contactor handles a 3-phase motor load of that power at 500 V line voltage — the typical switching duty for a pump or conveyor. If your application involves frequent jogging or reversing, size against the AC-4 number, not the AC-3. The IP20 front face means the contactor's front is touch-safe against fingers and tools, but the terminal area is rated IP00 — no protection. In a panel with an IP54 door, that's fine; in an open chassis or a washdown zone, you need a separate terminal cover or a higher-rated enclosure.

The Size S2 frame is 75 mm wide, 112 mm high, 115 mm deep. Screw terminals accept 2x (0.25...2.5 mm²) solid or 2x (0.75...25 mm²) stranded on the main circuit.

Frequently asked questions

Where can I buy 3RT1034-3AG16 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability.

What is 3RT1034-3AG16's listed depth?

The depth is 115 mm.

What wire sizes does the screw terminal accept?

Solid wire: 2x (0.25...2.5 mm²). Stranded wire: 2x (0.75...25 mm²) on the main current circuit.

Will 3RT1034-3AG16 drop into a panel specified around 3RT1044-1FB46 without rewiring?

The 3RT1034-3AG16 is a Size S2 contactor; the 3RT1044-1FB46 is a different frame size. Panel fit and terminal spacing differ — verify the mounting footprint and terminal layout against your existing panel layout before ordering.

MPN
3RT1034-3AG16