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Model number 908FK0051 is a Dynamic Braking Kit from Reliance Electric as part of the FlexPak 3000 product line. This model has a horsepower of 5 HP. The power supply associated with this unit is 230 VAC. This model has a chassis.



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  • Part Number: 908FK0051
  • SKU: 908FK0051RE
  • Manufacturer: Reliance Electric
  • Series: FlexPak 3000

908FK0051 Technical Specifications

Part Number 908FK0051
Series FlexPak 3000
Manufacturer Reliance Electric
Model Type Dynamic Braking Kit
Drive Horsepower 5 HP
Certifications U/L and C-U/L

Product Description

908FK0051 is FlexPak 3000 Dynamic Braking Kit that is manufactured by Reliance Electric. 230 VAC drives between 1.5 HP and 30 HP can support this dynamic braking kit; the set horsepower available for this model is 5 HP. The dynamic braking kit slows down the DC motor in an “uncontrolled” process. The load on the motor is also slowed during the dynamic braking process. This kit includes a DB assembly, a conduit plate, a control power wire, and four cable ties. The user must drill holes in a NEMA 1 cover if the desired mounting location is on a NEMA 1 enclosed drive. The 908FK0051 dynamic braking kit is used in the FlexPak 3000 series to provide hardware, such as braking grids, which are vital when the associated drive needs a dynamic braking stop. 

When the 908FK0051 module is being installed alongside the FlexPak 3000 drives, it will be installed on top of the chosen electrical cabinet in a solid plate or expanded sheet-metal enclosure without any impact on the required compliance. A DC motor armature is available alongside this module which will lead to the resistor enclosure and is required to be dressed as close to the mounting panel as possible. 

There are three manuals associated with the 908FK0051 braking kit. There is the D2-3403-2 FlexPak 3000 Digital DC Drive Hardware Reference, Installation, and Troubleshooting Manual, which provides information on how the braking kit will be mounted with the associated drive. The D2-3313 and D2-3374 manuals are both used to give specifics on the 908FK0051 braking kit.

Frequently Asked Questions about 908FK0051

What is the purpose of the 908FK0051?
The 908FK0051 is a dynamic braking kit that is used to help slow down the drives DC rotating motor and load. When the 908FK0051 is in use, the drive is disconnected from the motor armature. 

What is the 908FK0051 model used for when used alongside the FlexPak 3000 or WebPak 3000 Digital DC drives?

When the 908FK0051 model is used with the FlexPak 3000 or WebPak 300 drives, it is used to slow down the rotating DC motor, as well as its load. The slow down of the motor and load is considered an uncontrolled process. When this function occurs, the motor armature used will be disconnected from the drive, and a resistor will be placed across the motor's armature, which then acts as a generator. 
What drives are compatible with the 908FK0051?
The 908FK0051 is compatible with FlexPak 3000 drives with an HP of 5 at 230 VAC and an HP of 5 at 460 VAC. 

Reviews For 908FK0051

Internal Review

While the 908FK0051 model does have bountiful information on how it will function within the FlexPax 3000 product line, the availability of the actual model is limited. Due to the limited availability of this model, if it obtains any damage, it will need to be repaired rather than replaced. - AX Control Tech

Repair Services For 908FK0051

Type Lead Time Price Action
Repair Service 1-2 weeks $4258

Our highly skilled technicians can repair your 908FK0051. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More