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Siemens 3RT2344-1NF30 — Contactors

Siemens 3RT2344-1NF30 SIRIUS Contactor, S3, 10 A at 24 V

MPN3RT2344-1NF30
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Siemens SIRIUS 3RT2344-1NF30 contactor, Size S3, screw-type coil terminals, AC/DC operated, 83-155 V coil, 10 A at 24 V on auxiliary contacts, 140 x 96 x 152 mm, DIN-rail mount.

Siemens 3RT2344-1NF30 datasheet (PDF)
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

3RT2344-1NF30 — Identification
ParameterValue
Contactor frame sizeS3
3RT2344-1NF30 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2344-1NF30 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz3.5 VA
Rated value @ 50 Hz83 ... 155 V
3RT2344-1NF30 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2344-1NF30 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 250 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegR: 250 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (690 V, 1 kA)
3RT2344-1NF30 — 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)
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2344-1NF30 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2344-1NF30 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2344-1NF30 — Mechanical
ParameterValue
Width96 mm
Height140 mm
Depth152 mm
3RT2344-1NF30 — Specifications
ParameterValue
At AC38 ... 57 ms

Product details

S3 frame, screw terminals, 83-155 V AC/DC coil

The 3RT2344-1NF30: The main contact rating is AC-3 at 400 V: 10 A (the '10' in '10... 2'), with a lower rating of 2 A for the other end of the range.

Auxiliary contact current ratings across voltages

These ratings allow the contactor to switch control signals or small loads directly without a separate relay, as long as the voltage and current stay within the listed limits.

Coil burden and switching times

Switching times (both AC and DC) are 38-57 ms; arcing time on the main contacts is 10-20 ms.

Frequently asked questions

What is 3RT2344-1NF30's listed depth?

The depth is 152 mm.

MPN
3RT2344-1NF30