049401.5NR Datasheet/PDFFuses have been around since the late 19th century and are one of the oldest and most reliable safety devices used in a wide variety of electrical systems and applications. The 049401.5NR is one such type of fuse, designed specifically to provide overload protection in a variety of applications. In this article, we\'ll discuss the application field and working principle of the 049401.5NR fuse.
The 049401.5NR is a midget, time-delay fuse made of silver and zinc and features a variety of added safety features. It has an operating voltage of 600 volts and is designed to protect electrical equipment from lighting, motor overloads, circuit faults, and power surges. This fuse is commonly found in industrial equipment such as compressors, pumps, motors, robots, and more.
The 049401.5NR fuse works by intercepting an overload current and melting the internal filament. This breaks the circuit, thus disconnecting the equipment from the power and preventing any further damage. The time-delay fuse is specifically designed to allow a high inrush current, such as when switching on motors or other inductive loads, to pass through the device before breaking the circuit.
The 049401.5NR is designed to handle a wide range of temperatures, making it suitable for a variety of applications. It can handle up to 130°C in continuous operation and up to 150°C in an overload condition. Moreover, the 049401.5NR is a UL Class RK5 device, meaning that it passes the toughest UL testing covering inrush- withstand current, overload current, dielectric withstand, and ultimate strength.
The 049401.5NR fuse is well-suited for the most demanding applications, where safety and reliability are paramount. This type of fuse is ideal for residential, commercial, and industrial applications, such as HVAC, sewage treatment plants, emergency circuits, and more. In addition, the 049401.5NR is designed for use in a variety of panelboards, disconnect switches, and switchboards.
In conclusion, the 049401.5NR fuse is a reliable, durable, and easy-to-install device that makes use of the time-delay feature to protect circuits by breaking the circuit in case of an overloaded or short-circuited condition. The 049401.5NR is UL rated, can handle a wide range of temperature variations, and is suitable for a variety of applications.