UNHZ20200L Circuit Protection

The UNHZ20200L fuse is a type of fuse designed for use in UL98, NEC branch-circuit and feeder-circuit applications, as well as IEC60269 AC power systems, up to 600V AC or 250V DC. The UNHZ20200L fuse is a low voltage current limiting overcurrent protective device that is designed to provide reliable protection against circuit overloads and short circuits, as well as fire and shock hazards. This type of fuse has a variety of features and uses, but its primary purpose is to protect circuits and equipment from overcurrents and short circuits.

The UNHZ20200L fuse operates by physically breaking the internal circuit when the current reaches the predetermined level set by the user. The fuse is constructed of a current limiting housing and an electrically conductive element. The conductive element is usually composed of zinc or copper, and is usually insulated with a ceramic material. The internal configuration of the fuse allows it to control the current flowing in the circuit. When the predetermined current limit is exceeded, the fuse element melts, creating an open circuit, thus preventing further flow of current and protecting the circuit.

The UNHZ20200L fuse is available in several types, such as fast-acting, time-delay, and ultra-rapid. The fast-acting type reacts very quickly, limiting the duration of an overcurrent condition to less than 0.1 seconds. The time-delay type is designed to delay the operation of the fuse in order to allow certain types of circuit faults to be cleared before interruption of the circuit. The ultra-rapid type provides a much shorter operating time than fast-acting or time-delay fuses.

The UNHZ20200L fuse has many applications, such as industrial, commercial, and residential applications. It is commonly used in a variety of low-voltage applications such as motors, transformers, power supplies, control circuits, and lighting. One of its most popular applications is in the protection of solar photovoltaic (PV) systems.

The primary benefit of the UNHZ20200L fuse is that it provides effective protection for circuits and equipment from high-currents resulting from overcurrent and short circuit conditions. Additionally, due to its low voltage rating, the UNHZ20200L fuse is well-suited for use in many applications that require circuit protection under low voltage conditions. Since the fuse is available in several different types, it can be used in a variety of applications. For instance, the time delay type of fuse can be ideal for fault-clearing purposes in applications that require faster response times, while the fast-acting type can provide a more reliable protection against short circuits. In addition, the ultra-rapid type provides higher temperatures for applications that require dielectric protection.

In conclusion, the UNHZ20200L fuse has a variety of applications and uses, and is a reliable means of protecting circuits and equipment from overcurrent and short-circuit conditions. The fast reaction time of this type of fuse makes it ideal for a variety of applications, particularly in low-voltage applications. By providing a reliable method of circuit protection, the UNHZ20200L fuse can ensure the safety of the circuits, as well as equipment and personnel, in the event of an overcurrent or short-circuit event.