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Siemens 3RT2038-1NB30-0CC0 — Contactors

Siemens 3RT2038-1NB30-0CC0 SIRIUS Power Contactor, Size S2,

MPN3RT2038-1NB30-0CC0
NRND

Siemens SIRIUS 3RT2038-1NB30-0CC0, Size S2 power contactor, screw-type coil terminals, 20-33 V rated coil voltage, screw and snap-on 35 mm DIN rail mounting.

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

3RT2038-1NB30-0CC0 — Identification
ParameterValue
Contactor frame sizeS2
3RT2038-1NB30-0CC0 — 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
3RT2038-1NB30-0CC0 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz2 VA
Rated value @ 50 Hz20 ... 33 V
3RT2038-1NB30-0CC0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2038-1NB30-0CC0 — 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)
3RT2038-1NB30-0CC0 — 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
3RT2038-1NB30-0CC0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2038-1NB30-0CC0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2038-1NB30-0CC0 — Mechanical
ParameterValue
Width55 mm
Height114 mm
Depth130 mm
3RT2038-1NB30-0CC0 — Specifications
ParameterValue
At AC30 ... 55 ms

Product details

It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, with the mounting position allowing +/-180° rotation on a vertical surface and +/-22.5° forward/backward tilt — useful when the panel layout forces an unconventional orientation. The coil is rated 20-33 V (AC/DC), with an inrush current peak of 3 A and steady-state draw of 2 VA at both 50 and 60 Hz. That 2 VA figure matters for transformer sizing on the control circuit — a multi-contactor panel needs the summed VA, not just the sealed power.

Duty-cycle and switching frequency

Maximum switching frequency depends on the utilisation category: 700 operations/hour for AC-1 (resistive), 500/h for AC-3 and AC-3e (standard motor starting), 350/h for AC-2 (slip-ring motor), and 150/h for AC-4 (plugging/inching). The AC-3e rating at 500/h is the one to use for a standard squirrel-cage motor start/stop cycle — it matches the AC-3 figure, so no derating for that variant. Arcing time runs 10-20 ms; the make and break times at both AC and DC are 30-55 ms. These are typical for a contactor of this frame size and inform the coordination with upstream short-circuit protection.

Auxiliary contact ratings and wiring

The contactor ships with an auxiliary switch block (18-1 configuration for main contacts). The auxiliary contacts are rated: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V. These are the maximum continuous currents — useful for direct PLC input sensing or pilot-duty relay coils without an interposing relay. Main coil terminals are screw-type, accepting 2x (0.5-1.5 mm²) or 2x (0.75-2.5 mm²) solid or stranded wire. The auxiliary terminals share the same range. Strip length and ferrule sizing follow standard practice for this terminal class.

Environmental limits and clearances

Minimum clearances to adjacent components: 10 mm upwards, downwards, and forwards; 6 mm at the sides. In a dense DIN-rail layout, the 6 mm side gap is the binding constraint — plan the gland plate and wireway accordingly.

Frequently asked questions

What are the key dimensions of 3RT2038-1NB30-0CC0?

The contactor measures 114 mm height, 55 mm width, and 130 mm depth. The 55 mm width is the panel-space figure that matters for DIN-rail fill calculations.

Where can I buy 3RT2038-1NB30-0CC0 and how is it quoted?

This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer.

What compliance documentation is available for this contactor?

As a Siemens SIRIUS product, the 3RT2038-1NB30-0CC0 carries CE marking and is designed to meet relevant IEC/EN standards for contactors. Specific RoHS/REACH declarations and UL file information are available on request with the RFQ.

MPN
3RT2038-1NB30-0CC0