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Siemens 3RA6120-1EP33 — Motor Starters

Siemens 3RA6120-1EP33 SIRIUS compact starter, 15 kW at 400 V

MPN3RA6120-1EP33
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Siemens SIRIUS 3RA6120-1EP33 compact direct starter, 15 kW at 400 V, 53 kA SCCR, adjustable CLASS 10/20, screw and snap-on mounting, 45 x 170 x 165 mm.

$408.94Ref. price · indicative, final on quote
Siemens 3RA6120-1EP33 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →

Specifications

Identification

3RA6120-1EP33 — Identification
ParameterValue
Product designationcompact starter
Main circuit poles3
BrandSIRIUS
Product design / constructiondirect starter
Reference designation (IEC 81346-2)Q

Ratings & Performance

3RA6120-1EP33 — Ratings & Performance
ParameterValue
Rated motor power at 400 V15 000 W
Rated motor power at 460/480 V (hp)20 hp
Rated current at 480 V32 A
Rated impulse withstand voltage (Uimp)6 000 V

Protection & Tripping

3RA6120-1EP33 — Protection & Tripping
ParameterValue
Trip classCLASS 10 and 20 adjustable
Short-circuit protectionYes
Overload release setting range (current)8 ... 32 A
Duty / utilization type (IEC 60947-6-2)continous operation according to IEC 60947-6-2

Contacts & Control

3RA6120-1EP33 — Contacts & Control
ParameterValue
Rated voltage range at 50 Hz240 V
Auxiliary contacts, NO1
Auxiliary contacts, NC1
Auxiliary switch extensionYes

Mechanical & Connection

3RA6120-1EP33 — Mechanical & Connection
ParameterValue
Main contact conductor range (AWG)2x (14 ... 10), 1x 8
Mounting / fastening methodscrew and snap-on mounting
Mounting positionany
Width45 mm
Height170 mm
Depth165 mm

Environmental

3RA6120-1EP33 — Environmental
ParameterValue
Operating temperature range-20 ... +60 °C
Storage temperature range-55 ... +80 °C
Transport temperature range-55 ... +80 °C
Pollution degree3

Product details

Panel fit and mounting

The 3RA6120-1EP33 is a SIRIUS compact direct starter — 45 mm wide, 170 mm tall, 165 mm deep — designed for vertical mounting on a standard DIN rail with either screw or snap-on fastening.

Motor duty and short-circuit ratings

Trip class is adjustable between CLASS 10 and 20, so you can set the overload curve to match the motor's thermal capacity — CLASS 10 for fast-starting pumps, CLASS 20 for high-inertia loads like fans or conveyors.

Lifecycle and sourcing

Quoted per RFQ with availability and pricing confirmed at quote time — no stock-holding claim, but the supply chain is set up for both project builds and MRO spares.

Frequently asked questions

Where can I buy 3RA6120-1EP33 and how do I get a price?

No stock-holding claim — the supply chain covers both project builds and MRO spares.

MPN
3RA6120-1EP33