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Siemens 3RT2038-1SB30 — Contactors

Siemens 3RT2038-1SB30 SIRIUS Power Contactor, S2 Size

MPN3RT2038-1SB30
Active

Siemens SIRIUS power contactor, 3RT2038-1SB30, S2 size, 55 mm width, 114 mm height, screw and snap-on mounting on 35 mm DIN rail.

StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RT2038-1SB30 — Identification
ParameterValue
Contactor frame sizeS2

Ratings & Performance

3RT2038-1SB30 — 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

Control & Coil

3RT2038-1SB30 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz2 VA
Rated value @ 50 Hz21 ... 33 V

Contacts & Poles

3RT2038-1SB30 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Protection & Coordination

3RT2038-1SB30 — 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)

Connection & Mounting

3RT2038-1SB30 — 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

Durability

3RT2038-1SB30 — Durability
ParameterValue
Durability (operating cycles, typ.)5 000 000
Durability with aux. switch block (cycles, typ.)5 000 000

Environmental

3RT2038-1SB30 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m

Mechanical

3RT2038-1SB30 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth130 mm

Specifications

3RT2038-1SB30 — Specifications
ParameterValue
At AC30 ... 55 ms

Product details

The 3RT2038-1SB30: It carries an auxiliary switch, with the main contact configuration listed as 18... 1, meaning it can be ordered with up to 18 auxiliary contacts. The contactor is rated for up to 500 switching cycles per hour in AC-3 duty, and the MTBF is 52 years.

The 3RT2038-1SB30 measures 55 mm wide, 114 mm high, and 130 mm deep.

MPN
3RT2038-1SB30