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Siemens 3RT2038-1AM20 — Contactors

Siemens 3RT2038-1AM20 SIRIUS S2 Power Contactor

MPN3RT2038-1AM20
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Siemens SIRIUS power contactor 3RT2038-1AM20, S2 frame, screw-type coil terminals, with auxiliary switch, DIN rail mount.

$436.89Ref. price · indicative, final on quote
Siemens 3RT2038-1AM20 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

3RT2038-1AM20 — Identification
ParameterValue
Contactor frame sizeS2
3RT2038-1AM20 — 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 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2038-1AM20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.36
Rated value @ 50 Hz208 V
3RT2038-1AM20 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2038-1AM20 — 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)
3RT2038-1AM20 — 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
3RT2038-1AM20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2038-1AM20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2038-1AM20 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth130 mm
3RT2038-1AM20 — Specifications
ParameterValue
At AC10 ... 18 ms

Product details

It carries an integrated auxiliary switch and screw-type coil terminals.

Operating cycles per hour by duty class

Maximum switching rates vary by load type: 700 ops/h for AC-1 resistive loads, 350 ops/h for AC-2 slip-ring motors, 500 ops/h for AC-3 squirrel-cage motors, and 150 ops/h for AC-4 inching/plugging. AC-3e (enhanced) matches the AC-3 rate at 500 ops/h. Arcing time spans 10 to 20 ms; making time ranges from 10 to 18 ms at AC, which affects coordination with upstream protection.

Dimensions: width 55 mm, height 114 mm, depth 130 mm. Clearances: 10 mm upward/forward/downward, 6 mm laterally.

The part is procured to order against the buyer's RFQ, with a firm lead time established at the quote stage.

Frequently asked questions

What is the depth of the 3RT2038-1AM20?

The contactor has a depth of 130 mm, a width of 55 mm, and a height of 114 mm.

What are the key switching rates for this contactor?

It is rated for 700 cycles/h at AC-1, 350 at AC-2, 500 at AC-3 and AC-3e, and 150 at AC-4.

MPN
3RT2038-1AM20