Type B digital RCDs are suitable for all systems, machines, and devices where direct current fault currents may occur, such as:

• Direct current applications like photovoltaic systems or uninterruptible power supplies
• Medical devices including X-ray machines
• Testing and experimental equipment in laboratories and training rooms
• Frequency converters for motor applications
• Controls for elevators and cranes
• Drives with speed control for rolling mills, lathes, and milling machines
• Workshops for the use of welding equipment
• Construction industry
• Charging stations for electric vehicles

Type B not only detects fault currents in the alternating current and pulsed current range but also direct current fault currents that can occur in frequency converter controls, photovoltaic systems, and a variety of electronic consumers, even in household settings, significantly enhancing safety.