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BU-H15K
Mitsubishi BU-H15K available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Mitsubishi BU-H15K is a robust brake unit designed to enhance the performance of inverters in demanding industrial applications. This unit is particularly suited for scenarios that require significant braking torque, such as when a motor is driven by a 400V class transistorised inverter, or when rapid deceleration is necessary due to the motor being rotated by a load.
Crafted with precision, the BU-H15K operates effectively within a DC line voltage of less than 800V and an operating voltage of 740V DC ± 3V. It is engineered to deliver consistent braking torque, with a standard rating of 50% for 30 seconds, ensuring reliable performance in various operational conditions.
The unit's ambient operating temperature range from -10°C to +50°C allows it to function optimally in a wide range of environmental conditions. Its approximate weight of 3.5kg makes it a manageable addition to your system without compromising on durability.
The Mitsubishi BU-H15K is finished in a Munsell 5Y 8/1 colour, which provides a professional appearance while maintaining a 50% luster that is suitable for industrial environments. Its design considerations include safety features that prevent electric shock and fire hazards, making it a safe choice for integration into your existing systems.
This brake unit is an essential component for applications that demand high-performance braking capabilities and is a testament to Mitsubishi's commitment to quality and reliability in automation technology.
Crafted with precision, the BU-H15K operates effectively within a DC line voltage of less than 800V and an operating voltage of 740V DC ± 3V. It is engineered to deliver consistent braking torque, with a standard rating of 50% for 30 seconds, ensuring reliable performance in various operational conditions.
The unit's ambient operating temperature range from -10°C to +50°C allows it to function optimally in a wide range of environmental conditions. Its approximate weight of 3.5kg makes it a manageable addition to your system without compromising on durability.
The Mitsubishi BU-H15K is finished in a Munsell 5Y 8/1 colour, which provides a professional appearance while maintaining a 50% luster that is suitable for industrial environments. Its design considerations include safety features that prevent electric shock and fire hazards, making it a safe choice for integration into your existing systems.
This brake unit is an essential component for applications that demand high-performance braking capabilities and is a testament to Mitsubishi's commitment to quality and reliability in automation technology.
| Specification | Description |
|---|---|
| Part Number | BU-H15K |
| Alternative Part Number | BUH15K |
| Manufacturer | Mitsubishi |
| Application | Used for applications requiring large brake torque for motors operated by inverters |
| Voltage | Less than 800V DC |
| Operating Voltage | 740V DC ± 3V |
| Braking Torque | 50% for 30 seconds; capable of 100% for 30 seconds depending on motor combination |
| Ambient Temperature | -10°C to +50°C (14°F to 122°F) |
| Painting Colour | Munsell 5Y 8/1 (50% luster) |
| Approximate Weight | 3.5kg (7.7lbs) |
| Compatibility | Designed to work with 400V class transistorized inverters |
| Installation Requirements | Must be installed on an incombustible surface away from combustible materials |
| Safety Features | Includes a discharging resistor burning prevention circuit to protect against overheating |
| Additional Features | Can be used in parallel configurations for increased braking capacity |
| Dimensions | Refer to the manufacturer's documentation for detailed dimensions and external view |
| Circuit Configuration | Utilises a voltage divide resistor and operational amplifier for controlled braking |
| Maintenance | Periodic inspection recommended; resettable via a RESET button after thermal relay trip |
| Disposal | Treat as industrial waste; follow local regulations for electronic equipment disposal |
What applications is the BU-H15K suitable for?
The BU-H15K is designed for applications that require high brake torque, such as when a motor operated by an inverter is rotated by a load or when sudden deceleration is necessary.
Can the BU-H15K be used with any inverter?
The BU-H15K is compatible with specific 400V class transistorized inverters. It is important to check the compatibility of the inverter with the brake unit before use.
What are the operating conditions for the BU-H15K?
The BU-H15K operates at a voltage less than 800V DC, with an operating voltage of 740V DC ± 3V, and an ambient temperature range of -10°C to +50°C.
How should the BU-H15K be installed?
The BU-H15K should be mounted on a vertical surface in a vertical direction to ensure optimal heat dissipation. It should not be installed horizontally or on a horizontal surface.
What precautions should be taken when wiring the BU-H15K?
When wiring the BU-H15K, use the appropriate wire size as specified in the manual, ensure the wiring distance is minimized, and avoid contact with the discharging resistors due to their high temperature.
What type of discharging resistors should be used with the BU-H15K?
The BU-H15K requires specific discharging resistors with the correct resistance value and capacity. Using resistors with lower specifications may lead to failure of the brake unit or overheating of the resistors.
How can I prevent the discharging resistors from overheating?
To prevent overheating, install the discharging resistors in a well-ventilated area, use heat-resisting wires, and maintain adequate clearance from other components.
What should be done if the internal thermal relay of the BU-H15K trips?
If the internal thermal relay trips, switch off the inverter's input power to prevent overheating of the discharging resistors. Reset the brake unit using the RESET button and adjust the motor's deceleration time to a longer value.
Is there a specific orientation for mounting the discharging resistors?
Yes, the discharging resistors should be mounted with a minimum clearance of 5mm from any surface and with clearances of at least 60mm between resistors or between a resistor and panel for proper heat dissipation.
What is the approximate weight of the BU-H15K?
The approximate weight of the BU-H15K is 3.5kg.
- Integration with Mitsubishi transistorized inverters for enhanced braking capabilities
- Applications requiring large brake torque, such as when a motor is driven by a load or requires sudden deceleration
- Use in heavy-duty industrial settings where rapid stoppage of machinery is essential
- Energy dissipation in regenerative braking systems to prevent overvoltage
- Retrofitting existing motor control setups to improve stopping performance
- Elevator and hoist control systems where precise braking is critical
- Conveyor systems in manufacturing plants to ensure safe and controlled stopping
- Packaging machinery requiring quick halts for operational efficiency
- Automation systems within the automotive industry for controlled deceleration of robotic arms
- Wind turbine control systems for safe and controlled braking during high wind events
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
4 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
4 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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