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Siemens 3RT2038-3AF04 — Contactors

Siemens 3RT2038-3AF04 SIRIUS Power Contactor, 65 A at 480 V,

MPN3RT2038-3AF04
Active

Siemens SIRIUS power contactor, 3RT2038-3AF04, S2 frame, 65 A at 480 V, spring-type terminals, screw and snap-on 35 mm DIN rail mount, 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

3RT2038-3AF04 — Identification
ParameterValue
Contactor frame sizeS2
3RT2038-3AF04 — 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
3RT2038-3AF04 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.37
Rated value @ 50 Hz110 V
3RT2038-3AF04 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2038-3AF04 — 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)
3RT2038-3AF04 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2038-3AF04 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2038-3AF04 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2038-3AF04 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth178 mm
3RT2038-3AF04 — Specifications
ParameterValue
At AC10 ... 18 ms

Product details

The Siemens SIRIUS 3RT2038-3AF04 is a power contactor in the S2 frame size, rated 65 A at 480 V — that's the AC-3 motor-switching current, so it handles induction motor loads up to that level without derating. Switching frequency varies by duty: 700 cycles/hour at AC-1 (resistive loads), 500 at AC-3 (motor start/run), and 150 at AC-4 (plugging/inching). For high-inertia loads or frequent reversing, the AC-4 limit governs — plan around 150 ops/hour max.

Panel integration

The S2 frame is a common Siemens size; if your panel was laid out for a smaller S0 contactor like the 3RT2015 series, check the 55 mm width and 178 mm depth against your existing DIN rail spacing and gland-plate clearance.

Frequently asked questions

What is the 3RT2038-3AF04 rated for at 480 V?

It is rated 65 A at 480 V, which is the AC-3 motor-switching current. That means it can handle a motor load drawing up to 65 A under start/run conditions at that voltage.

Will the 3RT2038-3AF04 fit a panel designed for a 3RT2015-2AP02?

The 3RT2038-3AF04 is an S2 frame, while the 3RT2015-2AP02 is an S0 frame — physically smaller. The S2 is 55 mm wide and 178 mm deep versus the S0's narrower footprint. It will not drop into the same DIN rail space without checking clearance and possibly relocating adjacent components.

Where can I buy the 3RT2038-3AF04?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your quantity and delivery timeline.

MPN
3RT2038-3AF04