BK/GMD-300MA

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Fuses are among the oldest of all current-carrying components, developed to protect electrical equipment and wiring in the event of an overload or short circuit. BK/GMD-300MA is a special type of fuse that combines a fuse and a miniature circuit breaker into one compact unit. This type of fuse is used in a wide range of applications, including electric ovens, fluctuating electrical loads, and other power distribution systems.

BK/GMD-300MA is a miniaturised fuse and circuit breaker device, typically used for medium-voltage and high-voltage utility applications. These miniature fuses offer superior protection and increased safety, even in cramped spaces. Common applications for these devices include: photovoltaic (PV) power systems, industrial lighting, audio/visual equipment, window air conditioners, and industrial equipment.

The BK/GMD-300MA fuses operate similarly to conventional fuse construction, except for the addition of the internal circuit breaker. This circuit breaker component is designed with spring-loaded contacts which open when an electrical overload occurs. The circuit breaker is positioned in the line, in series with the fuse. When an overload on the line causes the spring-loaded contacts to open, the circuit breaker trips, disconnecting the electricity supply and shutting off the circuit. This mechanism prevents excess energy from reaching the rest of the circuit and reduces the risk of additional damage.

The circuit breaker also helps protect the fuse element from the same overloads and can allow quick resetting after an overload event. When the current returns to a safe level, the spring-loaded contacts automatically snap back into place and reconnect the supply. The BK/GMD-300MA also features a usable trigger that indicates when the fuse has tripped due to a fault. The unit also has a corresponding reset button that allows for manual recovery once the fault has been fixed.

BK/GMD-300MA fuses are strong and durable, allowing them to withstand a wide range of electrical conditions and providing superior protection. They are rated to handle a broad range of currents and voltages, ensuring the appropriate protection in a variety of conditions. In addition, these miniature fuses are designed to connect with standard fuse interface blocks, requiring minimal installation time and effort.

Compared to traditional fuses, BK/GMD-300MA fuses offer secure, reliable protection in high-traffic electrical systems, even in small spaces. The integrated circuit breaker component ensures increased safety and helps protect the fuse element from the same overloads. In addition, the convenient reset button allows for easy reconnection of the electrical supply. These miniature fuses make a great choice for a wide range of electric appliance and equipment applications.

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