Unitronics UMI-S0071 dynamic braking resistor designed for use with compatible variable frequency drives in industrial automation and motor control applications.
£15.75
The Unitronics UMI-S0071 is a heavy-duty dynamic braking resistor designed for use with compatible Unitronics variable frequency drives (VFDs). Engineered for demanding industrial applications, it safely dissipates regenerative energy generated during motor deceleration, helping improve braking performance, protect drive electronics and prevent DC bus overvoltage faults.
During rapid motor deceleration, excess energy is returned to the drive's DC bus. The UMI-S0071 converts this regenerative energy into heat, allowing the drive system to maintain stable operation while delivering faster and more controlled stopping performance. This makes it particularly suitable for cranes, hoists, conveyors, heavy industrial machinery and other high-inertia applications.
Designed for 400-480 V AC three-phase systems, the UMI-S0071 provides dependable regenerative energy dissipation for high-power drive installations. Its industrial-grade construction ensures reliable operation in demanding manufacturing, material handling and automation environments.
Braking resistors are essential components in variable frequency drive systems where motors frequently decelerate under load. During braking, regenerative energy is returned to the drive DC bus. The UMI-S0071 safely dissipates this excess energy, helping maintain stable drive operation while enabling faster and more controlled stopping performance.
This improves machine productivity, protects drive electronics and enhances operational safety in applications requiring rapid speed changes, high-inertia braking or precision motor control.
| Power | 5.5 kW |
|---|---|
| Voltage | 480 V |
| Phase | Three Phase |
| Product type | Dynamic braking resistor |
| Series | Unitronics UMI accessories |
| Application | Variable frequency drive braking |
| Supply voltage | 400-480 V AC |
| Phase compatibility | Three-phase |
| Function | Regenerative energy dissipation |
| Mounting | Industrial panel or enclosure installation |
| Construction | Heavy-duty industrial design |
| Usage | High-power motor drive applications |
| Environment | Industrial automation systems |
The UMI-S0071 is a dynamic braking resistor used with compatible variable frequency drives to dissipate regenerative energy generated during motor deceleration.
A braking resistor safely dissipates excess energy generated during motor braking, helping prevent overvoltage conditions and improving stopping performance.
The UMI-S0071 is suitable for conveyors, cranes, hoists, manufacturing equipment, material handling systems and other industrial automation applications.
The resistor is designed for use with compatible Unitronics variable frequency drive systems operating on three-phase industrial power supplies.
By dissipating regenerative energy during deceleration, a braking resistor enables faster stopping, improved process control and enhanced protection for drive electronics.
Unitronics braking resistors are widely used by automation engineers and machine builders to improve deceleration performance, protect variable frequency drives and enhance operational reliability in demanding industrial environments.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...