The Mitsubishi FR-BU2-H75K brake unit is designed for operation with supply voltages ranging from 380 to 460 volts DC. It can work with up to ten units in parallel and is suitable for various brake resistor types.
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Manufacturer | Mitsubishi |
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Series | Brake Resistors |
Part Number | FR-BU2-H75K |
Supply Voltage Class | 380 to 460 Volts DC |
Protection Rating | IP00 |
Product Type | Brake unit without brake resistor |
Weight | 4.41 pounds (2 kilograms) |
Total Resistance Value For The Discharging Resistor | 6.5 ohms (minimum) |
Cooling Method | Natural cooling |
Maximum Operations | 10 units (parallel) |
Continuous Permissible Power | 7,500 Watts |
Connected Brake Resistance Types | FR-BR, MT-BR5, and GRZG type |
Ambient Operating Temperature | -10 to 50°C (in a non-condensing environment) |
Storage Temperature | -20 to 65°C (in a non-condensing environment) |
Humidity Tolerance | 90% relative humidity or less |
Operating And Installation Altitude | 3,280 feet (1,000 meters) above sea level |
Dimension | 5.04 inches tall, 6.69 inches wide, and 5.6 inches deep (128 millimeters tall, 170 millimeters wide, and 142.5 millimeters deep) |
Terminal Screw Size For The Main Circuit | M6 screw |
The FR-BU2-H75K from Mitsubishi is optimized for applications requiring a brake unit that operates without an integrated brake resistor. This model supports supply voltage specifications ranging from 380 to 460 volts DC. Weighing in at 4.41 pounds (2 kilograms), it is designed with careful attention to weight while maintaining performance. The brake unit presents a total resistance value of at least 6.5 ohms to ensure efficient discharging functionality.
With a maximum capacity to operate ten units in parallel, this unit is suitable for various complex setups requiring robust braking systems. For continuous operation, the unit can handle up to 7,500 watts of power. Its connection capabilities extend to several brake resistance types, including FR-BR, MT-BR5, and GRZG configurations, thereby providing versatility for different applications.
Ambient operating temperatures can range from -10°C to 50°C, in environments that do not condense moisture. Furthermore, the storage temperature tolerates from -20°C to 65°C, ensuring operational reliability even in extreme conditions. Humidity tolerance is limited to 90% relative humidity or less, maintaining performance integrity. The brake unit is designated for use at altitudes up to 3,280 feet (1,000 meters), offering versatility in installation conditions.
The dimensions for this brake unit measure 5.04 inches (128 mm) in height, 6.69 inches (170 mm) in width, and 5.6 inches (142.5 mm) in depth. The main circuit terminal screw is specified as an M6 screw to ensure secure connections. Designed for natural cooling, the FR-BU2-H75K reflects Mitsubishi’s commitment to engineering excellence and reliability in braking applications.