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UMI-S0050 Unitronics UMI 0.4kW Brk Res. 120W, 230V
Unitronics UMI-S0050 braking resistor designed for variable frequency drive applications, featuring 120 W braking power, 360 ohm resistance and compatibility with 200-240 V AC systems.
£25.29
Why Choose the Unitronics UMI-S0050 Braking Resistor?
The Unitronics UMI-S0050 is a high-quality dynamic braking resistor designed for use with compatible Unitronics variable frequency drives (VFDs). It provides effective dissipation of regenerative energy generated during motor deceleration, helping improve braking performance and protecting drive components in demanding industrial applications.
By rapidly converting excess electrical energy into heat during braking events, the UMI-S0050 enables faster stopping times, improved machine control and reduced risk of drive overvoltage faults. This makes it particularly suitable for applications involving frequent acceleration and deceleration cycles.
Designed for use with 200-240 V AC single-phase and three-phase drive systems, the UMI-S0050 features a 120 W braking power rating and is suitable for drives controlling motors up to approximately 0.4 kW (0.5 HP). Its robust industrial construction ensures reliable operation in automation, manufacturing and machine-building environments.
Key Advantages
- Improves dynamic braking performance in VFD applications.
- Helps prevent drive overvoltage conditions during deceleration.
- 120 W braking power rating for efficient energy dissipation.
- Compatible with 200-240 V AC single-phase and three-phase systems.
- Suitable for drives rated up to 0.4 kW / 0.5 HP.
- Reliable industrial-grade construction for demanding environments.
Key Features
- Unitronics UMI braking resistor series.
- 120 W braking power.
- 0.4 kW (0.5 HP) drive compatibility.
- 360 Ω resistance value.
- 200-240 V AC operating systems.
- Compatible with single-phase and three-phase drives.
- Designed for regenerative energy dissipation.
- Compact industrial installation design.
Reliable Dynamic Braking for Variable Speed Drives
Braking resistors are essential components in variable frequency drive systems where motors frequently decelerate. During braking, regenerative energy is returned to the drive DC bus. The UMI-S0050 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 that require frequent speed changes or rapid deceleration cycles.
Typical Applications
- Conveyor and material handling systems.
- Packaging and production machinery.
- Hoists and lifting equipment.
- Industrial fans and pumps.
- Machine tools and automation equipment.
- OEM machinery and manufacturing systems.
Technical Specifications
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| Product Series | Unitronics Servo / Drives | |
|---|---|---|
| Device Type | Drive / Servo Accessory | |
| Coil / Supply Voltage | 200–240 V AC | |
| Power | 0.4 kW | |
| Voltage | 240 V | |
| Phase | Single Phase | |
| Product type | Braking resistor | |
| Braking power | 120 W | |
| Rated power | 0.4 kW | |
| Motor rating | 0.5 HP | |
| Resistance | 360 Ω | |
| Supply voltage | 200-240 V AC | |
| Phase compatibility | Single-phase and three-phase | |
| Application | Dynamic braking for VFD systems | |
| Mounting | Industrial panel installation | |
| Construction | Industrial-grade resistor assembly |
Frequently Asked Questions
What is the Unitronics UMI-S0050 used for?
The UMI-S0050 is a braking resistor used with compatible variable frequency drives to dissipate regenerative energy generated during motor deceleration.
What braking power does the resistor provide?
The resistor provides a 120 W braking power rating.
What drive size is it suitable for?
The UMI-S0050 is designed for applications using drives rated up to approximately 0.4 kW (0.5 HP).
What is the resistance value?
The braking resistor has a nominal resistance value of 360 Ω.
Can it be used with single-phase and three-phase systems?
Yes, the UMI-S0050 is suitable for both single-phase and three-phase 200-240 V AC drive applications.
Trusted for Reliable Drive Braking Performance
Unitronics braking resistors are widely used in industrial automation systems to improve deceleration performance, protect VFDs from overvoltage conditions and enhance machine control during demanding operating cycles.
