High-Efficiency 45kW Brake Unit for Industrial Systems Delta Electronics VFDB4045

45kw HP 460 V Braking Module For Vfd · Delta Electronics VFDB4045

SKU: DE-VFDB4045

Brake unit for Delta 460 V variable frequency drive systems with 45 kW maximum motor capacity. Used with an external braking resistor to dissipate regenerative energy during deceleration and help reduce overvoltage trips in industrial drive applications.

What this product is for

The VFDB4045 is a brake unit for Delta 460 V AC drive systems. It manages regenerative energy produced when a motor decelerates and routes that energy to a compatible external braking resistor.

Use for

Use for conveyors, fans, pumps, machine tools, and other industrial equipment where faster stopping or frequent deceleration can cause DC bus overvoltage in the drive. Commonly selected when the application has higher inertia or repeated braking cycles.

Avoid for

Do not use as a standalone braking device, and do not use without a correctly sized braking resistor. Avoid applications where drive voltage, resistor value, or braking duty do not match Delta recommendations.

Best for

Best for 460 V Delta VFD installations requiring external dynamic braking support up to 45 kW motor capacity. Suitable for industrial panels where controlled deceleration and reduced nuisance tripping are important.

Installed in

Typically installed in industrial control panels, OEM machinery, process equipment, and manufacturing systems. Install in accordance with Delta instructions, with proper enclosure spacing, ventilation, and resistor selection.

Why this product exists

When a motor is slowed, regenerative energy can raise the DC bus voltage in the drive. This brake unit helps switch that excess energy to an external resistor so the drive can decelerate the load more effectively and with fewer overvoltage faults.

Compared with similar products

This model is part of Delta's VFDB braking unit range for higher voltage drives and is intended for 460 V systems. Key buying checks are drive voltage compatibility, maximum motor capacity, discharge current, and minimum equivalent resistor value. Actual braking performance depends on load inertia, deceleration time, resistor sizing, duty cycle, and local installation conditions.

Specifications

Manufacturer: Delta Electronics
Part number: VFDB4045
Product type: Brake unit
Series: VFDB braking units
Compatible drive voltage: 460 V series
Maximum motor capacity: 45 kW
Maximum discharge current: 60 A
Continuous discharge current: 18 A
Minimum equivalent resistor: 13.6 ohm
Application: Use with dedicated external braking resistors

- SKU
  DE-VFDB4045
- Manufacturer Part #
  VFDB4045
Application
Use with dedicated external braking resistors
Series
VFDB braking units
Brands
Delta Electronics

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