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Siemens 3RT2038-1AC24 — Contactors

Siemens 3RT2038-1AC24 SIRIUS Power Contactor, 65 A AC-3 at 4

MPN3RT2038-1AC24
Active

Siemens SIRIUS power contactor, size S2, 3RT2038-1AC24, 65 A AC-3 at 480 V, screw-type terminals, 55 mm wide, 174 mm deep.

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

3RT2038-1AC24 — Identification
ParameterValue
Contactor frame sizeS2
3RT2038-1AC24 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V55 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V15 hp
Rated value @ 24 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2038-1AC24 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.36
Rated value @ 50 Hz24 V
3RT2038-1AC24 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2038-1AC24 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)
Short-circuit coordination type 2, fusegG: 160A (690V,100kA), aM: 80A (690V,100kA), BS88: 125A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2038-1AC24 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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
3RT2038-1AC24 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2038-1AC24 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2038-1AC24 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth174 mm
3RT2038-1AC24 — Specifications
ParameterValue
At AC10 ... 18 ms

Product details

The coil is 24 V at 50 Hz. The contactor measures 55 mm wide, 114 mm high, and 174 mm deep, so it occupies a single 55 mm slot on the rail.

The AC-3 rating of 65 A at 480 V is the one that governs motor switching — this contactor can start and stop a 480 V three-phase motor drawing up to 65 A full-load current. For resistive loads (AC-1), the maximum operating rate is 700 switching cycles per hour, while for AC-3 motor duty it is 500 cycles per hour. The AC-4 maximum (plugging/inching) is 150 cycles per hour. Main contact configuration is 3-pole (3 NO), and the auxiliary switch block is not included — it must be ordered separately if needed. The coil draw at 24 V rated value is 6 A.

Frequently asked questions

What are the key dimensions for panel fit?

Width is 55 mm, height is 114 mm, and depth is 174 mm. It mounts on a 35 mm DIN rail.

What is the AC-3 motor rating at 480 V?

It is rated 65 A in AC-3 duty at 480 V, suitable for switching three-phase induction motors up to that current.

Does this contactor include auxiliary contacts?

No, the auxiliary switch is not included and must be ordered separately.

What is the coil voltage?

The coil is rated 24 V at 50 Hz.

MPN
3RT2038-1AC24