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UMI-S0051 Unitronics UMI 0.75kW Brk Res. 250W, 230V
MPN: UMI-S0051
Alt. SKU: UMIS0051
Special Price
£35.70
£29.75
Regular Price
£42.00
Why Choose the Unitronics UMI-S0051 Braking Resistor?
The Unitronics UMI-S0051 is an industrial dynamic braking resistor designed for use with compatible Unitronics variable frequency drives (VFDs). It safely dissipates regenerative energy generated during motor deceleration, allowing drives to stop motors faster while preventing DC bus overvoltage faults.
During braking or rapid deceleration, an AC motor can act as a generator and feed energy back into the drive. A braking resistor such as the UMI-S0051 converts this excess electrical energy into heat, protecting the drive and improving stopping performance in automation systems.
Engineered for industrial motion control environments, the UMI-S0051 supports drive systems operating around 0.75 kW (1 HP). Its robust construction makes it suitable for installation alongside VFDs in machinery, conveyors and automated production equipment requiring controlled deceleration.
Key Features
- Dynamic braking resistor for variable frequency drive systems.
- Designed for Unitronics drive platforms and automation equipment.
- Helps dissipate regenerative energy during motor braking and deceleration.
- Prevents overvoltage conditions within the VFD.
- Supports drive systems rated up to 0.75 kW (1 HP).
- Compact industrial design for panel or machine installation.
Technical Specifications
- Manufacturer: Unitronics
- Model: UMI-S0051
- Product type: Dynamic braking resistor
- Resistance: 150 Ω
- Supply voltage: approx. 220 V AC
- Network compatibility: Single-phase or three-phase drive systems
- Braking power: approx. 250 W
- Rated motor power: approx. 0.75 kW (1 HP)
- Function: Dissipation of regenerative braking energy
- Application: Variable frequency drive braking systems
Typical Applications
- Variable frequency drive braking systems.
- Conveyor and material handling equipment.
- Packaging and production machinery.
- Industrial automation requiring rapid motor deceleration.
- Machine tools and motion control systems.
Frequently Asked Questions
What is the UMI-S0051 used for?
The UMI-S0051 is a braking resistor used with a VFD to dissipate regenerative energy produced when a motor decelerates.
Why is a braking resistor required in a VFD system?
When a motor slows down it can generate electrical energy that flows back into the drive. A braking resistor safely converts this energy into heat to prevent overvoltage faults.
What drive power range is this resistor designed for?
The UMI-S0051 is typically used with drive systems around 0.75 kW (1 HP).
What voltage systems can it be used with?
This braking resistor is designed for systems operating around 220 V AC and can be used with both single-phase and three-phase drive configurations.
Trusted by Automation Engineers
Braking resistors are essential components in VFD systems, enabling safe and controlled motor deceleration while protecting drives from regenerative overvoltage.
| Packed Quantity | 1 |
|---|---|
| Manufacturer | Unitronics |
| Manufacturer Part Number | UMI-S0051 |
| Alternative Product SKU | UMIS0051 |
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