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Mitsubishi BU-H15K

Name: BU-H15K
Brand: Mitsubishi
SKU: BU-H15K
Price: 199.57 GBP
Availability: InStock

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£199.57 (ex. VAT)

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Marvo Stock ID MV-BQF6

HS Code 8504

SKU BU-H15K

Condition Used

Warranty 12 months

Weight (kg) 3.50

Length (mm) 90.00

Width (mm) 240.00

Height (mm) 225.00

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Specification & Description

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Commonly Asked Questions

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Customer Reviews

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Specification & Description

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

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.

Commonly Asked Questions

Is my order covered by a warranty?

Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.

What payment methods do you accept?

We accept card payments from all major credit, debit and Mastercard providers including Visa, American Express, Western Union, Paypal and bank transfers. Before you complete an order you will be prompted to input your payment details, at which point you can enter the relevant card information you wish to use for your transaction. If you are experiencing issues with your payment method then you can contact our team via email here. From there, you will be directed to the most relevant resource or person to help you complete your payment, get your order processed and ensure that your parts are on the way to your delivery address.

Is Marvo a credible parts supplier?

Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.

Have steps been taken to ensure quality control?

Marvo takes pride in product quality and has put several measures in place to assure high levels of quality standards. For your peace of mind, all parts have been ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. Redefine convenience and secure priority delivery on all parts along with a comprehensive 12-month warranty. This is the smart new way to buy automation and control components.

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Our service to you

Lightning-Fast Express Shipping: Receive your order in record time with our express shipping options, ensuring you minimize downtime and keep your projects on track.

No-Risk Returns, Guaranteed: Return your parts anytime for a full refund. Our hassle-free return policy ensures you’re never stuck with something you don’t need.

Clear Pricing with No Hidden Fees: What you see is what you pay, transparent pricing with no extra costs, ever. Rest assured, all taxes and fees are already included in your final price.

Rock-Solid Reliability at a Fraction of the Cost: Get pre-owned electronic parts that are fully tested for peak performance, saving you money without compromising on quality, backed by a comprehensive warranty.

Frequently Asked Questions

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.

Part conditions explained

We want your buying experience to be as seamless as possible. So, here are all of the product descriptions you will see when browsing Marvo, explained a little further:

New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.

New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.

New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.

Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.

Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.

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