Siemens 3RA6120-2EB34 SIRIUS Compact Starter, 15 kW, 53 kA

Name: 3RA6120-2EB34
Brand: Siemens
SKU: 3RA6120-2EB34
Availability: LimitedAvailability
Author: LOTO Lorraine

Specifications

Identification

3RA6120-2EB34 — Identification
Parameter	Value
Product designation	compact starter
Main circuit poles	3
Brand	SIRIUS
Product design / construction	direct starter
Reference designation (IEC 81346-2)	Q

Ratings & Performance

3RA6120-2EB34 — Ratings & Performance
Parameter	Value
Rated motor power at 400 V	15 000 W
Rated motor power at 460/480 V (hp)	20 hp
Rated current at 480 V	32 A
Rated impulse withstand voltage (Uimp)	6 000 V

Protection & Tripping

3RA6120-2EB34 — Protection & Tripping
Parameter	Value
Trip class	CLASS 10 and 20 adjustable
Short-circuit protection	Yes
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

3RA6120-2EB34 — Contacts & Control
Parameter	Value
Rated voltage range at 50 Hz	24 V
Auxiliary contacts, NO	1
Auxiliary contacts, NC	1
Auxiliary switch extension	Yes

Mechanical & Connection

3RA6120-2EB34 — Mechanical & Connection
Parameter	Value
Mounting / fastening method	screw and snap-on mounting
Mounting position	any
Width	45 mm
Height	191 mm
Depth	165 mm

Environmental

3RA6120-2EB34 — Environmental
Parameter	Value
Operating temperature range	-20 ... +60 °C
Storage temperature range	-55 ... +80 °C
Transport temperature range	-55 ... +80 °C
Pollution degree	3

Product details

The Siemens 3RA6120-2EB34 is a SIRIUS compact starter — a direct-on-line motor starter that integrates a contactor, overload relay, and short-circuit protection into a single 45 mm-wide device. It's rated for continuous operation per IEC 60947-6-2 and handles motors up to 15 kW at 400 V, with a short-circuit breaking capacity of 53 kA at 400 V.

Trip Class and overload protection

The overload relay is adjustable between Trip Class 10 and Trip Class 20.

Mounts vertically on a standard DIN rail with a screw and snap-on mechanism — no tools needed for the snap, but the screw adds a positive lock against vibration. At 45 mm wide and 191 mm tall, it fits a standard 8-module enclosure row with room for adjacent devices.

Frequently asked questions

Where can I buy the Siemens 3RA6120-2EB34?

Buyers need to quickly find a trusted distributor with stock to avoid project delays.

What is the datasheet for 3RA6120-2EB34?

Engineers need detailed specs (voltage, current, trip class) to validate fit for their application.

Is 3RA6120-2EB34 still active or obsolete?

Purchasers must know lifecycle status to avoid sourcing discontinued parts that may cause supply chain issues.

What is the price of 3RA6120-2EB34?

Budgeting and competitive pricing are critical for procurement decisions.

What is the equivalent replacement for 3RA6120-2EB34?

Maintenance techs and buyers need alternatives if the exact part is unavailable or end-of-life.

What are the mounting dimensions of 3RA6120-2EB34?

Engineers need panel or DIN rail dimensions to ensure mechanical compatibility.