D0345RA

Fuseholders are used in electrical systems to protect them from dangerous electrical faults. D0345RA fuseholders are commonly used in high and medium voltage circuit breaker utility applications, and thus are particularly well-suited for extremely hazardous fault conditions. They are rated for 277/480V AC and up to 650A, and are UL approved for high levels of safety and reliability.

At the heart of the D0345RA is a state-of-the-art single-pole fusehead that contains a dry interrupter for reliable disconnection and re-connection of the electrical system. The construction of the fusehead is such that it allows a wide range of fault currents to be interrupted without any significant heat build-up. This ensures the fuseholder has a high level of short and long-term reliability.

The D0345RA consists of a base and cover, the base houses the single-pole fusehead and the cover contains the fuse itself. The single-pole fusehead is connected to a modular pluggable connector, which in turn is wired to the circuit breaker utility. The fuse is inserted into the top of the cover and is held in place by a series of retaining clips. The entire unit is secured to the faceplate of the circuit breaker utility by means of mounting screws.

The D0345RA is designed to be able to safely interrupt electrical fault currents up to the maximum rated current. This is done by means of a spring-loaded fuse blade, which is actuated when the fuse fails. When the fuse voltage exceeds the load voltage, the fuse blade is released, thereby interrupting the fault current. This ensures that the circuit breaker utility is not damaged by the fault current and is brought back to a safe condition.

The D0345RA is also designed for use in applications with high levels of vibration or shock. This is achieved by means of vibration resistant engineering plastic housing which is used to cushion the single-pole fusehead from vibration. Additionally, the spring-loaded fuse blade is designed to open against less load, thereby reducing the likelihood of contact failure due to harsh environmental conditions.

In conclusion, the D0345RA fuseholder provides a robust and reliable solution for the utility market, capable of withstanding the harsh environments that are common in circuit breakers. It is an ideal choice for applications which require maximum levels of safety and reliability, and is UL approved for safety and reliability. The D0345RA is a popular choice for fuseholders in many applications, due to its durability and ease of use.