Siemens 3RA6250-2DB34 SIRIUS reversing starter, 53 kA

Name: 3RA6250-2DB34
Brand: Siemens
SKU: 3RA6250-2DB34
Availability: LimitedAvailability
Author: Mobile-Repair Mona

Specifications

Identification

3RA6250-2DB34 — Identification
Parameter	Value
Product designation	compact starter
Main circuit poles	3
Brand	SIRIUS
Product design / construction	reversing starter
Reference designation (IEC 81346-2)	Q

Ratings & Performance

3RA6250-2DB34 — Ratings & Performance
Parameter	Value
Rated motor power at 400 V	5 500 W
Rated motor power at 460/480 V (hp)	7.5 hp
Rated motor power at 575/600 V (hp)	10 hp
Rated current at 480 V	12 A
Rated current at 600 V	12 A
Rated impulse withstand voltage (Uimp)	6 000 V

Protection & Tripping

3RA6250-2DB34 — Protection & Tripping
Parameter	Value
Trip class	CLASS 10 and 20 adjustable
Short-circuit protection	Yes
Overload release setting range (current)	3 ... 12 A
Duty / utilization type (IEC 60947-6-2)	continous operation according to IEC 60947-6-2

Contacts & Control

3RA6250-2DB34 — Contacts & Control
Parameter	Value
Rated voltage range at 50 Hz	24 V
Auxiliary contacts, NO	2
Auxiliary contacts, NC	0
Auxiliary switch extension	Yes

Mechanical & Connection

3RA6250-2DB34 — Mechanical & Connection
Parameter	Value
Main contact conductor range (AWG)	2x (16 ... 10), 1x 8
Mounting / fastening method	screw and snap-on mounting
Mounting position	any
Width	90 mm
Height	191 mm
Depth	165 mm

Environmental

3RA6250-2DB34 — 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 SIRIUS 3RA6250-2DB34 is a compact reversing starter rated for continuous operation per IEC 60947-6-2. Control voltage is 24 V DC/AC, so it drops straight into a standard 24 VDC control loop without an extra transformer or rectifier. The adjustable trip class — choose Class 10 for faster protection on short-acceleration loads, Class 20 for higher-inertia starts — lets you match the overload curve to the motor without swapping heater packs.

DIN-rail fit and spring-clamp wiring

Dimensions are 191 mm high by 90 mm wide by 165 mm deep — plan for that depth when laying out gland plates or enclosure back-panels.

Frequently asked questions

What are the adjustable trip class settings for 3RA6250-2DB34?

Trip class is adjustable between Class 10 and Class 20. Class 10 trips faster for short-acceleration motor loads; Class 20 allows more time for high-inertia starts. This is set via a selector on the device, no heater elements needed.

Where can I buy 3RA6250-2DB34 and what is the lead time?

This part is sourced to order against an RFQ. Availability and pricing are confirmed at quote time.