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Siemens 3RT2038-1NB30 — Contactors

Siemens 3RT2038-1NB30 SIRIUS S2 Power Contactor, 55 mm

MPN3RT2038-1NB30
Active

Siemens SIRIUS S2 power contactor, 3RT2038-1NB30, size S2, screw-type coil terminals, 55 mm width, 130 mm depth, 114 mm height.

$171.25Ref. price · indicative, final on quote
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

3RT2038-1NB30 — Identification
ParameterValue
Contactor frame sizeS2
3RT2038-1NB30 — 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
3RT2038-1NB30 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz2 VA
Rated value @ 50 Hz20 ... 33 V
3RT2038-1NB30 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2038-1NB30 — 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)
3RT2038-1NB30 — 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
3RT2038-1NB30 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2038-1NB30 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2038-1NB30 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth130 mm
3RT2038-1NB30 — Specifications
ParameterValue
At AC30 ... 55 ms

Product details

SIRIUS S2 power contactor for motor switching

It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, with a width of 55 mm, depth of 130 mm, and height of 114 mm.

Coil and auxiliary contact configuration

Inrush current peak is 3 A.

Mounting and environmental tolerances

Switching frequency and arc timing

Maximum operating frequency at AC-1 is 700 cycles/h, at AC-2 is 350 cycles/h, at AC-3 is 500 cycles/h, at AC-4 is 150 cycles/h, and at AC-3e is 500 cycles/h. Operate time at AC and DC is 30 to 55 ms.

Frequently asked questions

Does 3RT2038-1NB30 have auxiliary contacts?

Yes, the 3RT2038-1NB30 includes an auxiliary switch.

MPN
3RT2038-1NB30