5BCLS-44R

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Fuses

Fuses are electrical safety devices designed to protect electrical circuits, equipment, and personnel by interrupting the circuit when an overcurrent condition exists. This is done by melting an internal conductor, which acts as a gatekeeper between the source of power and the load. The 5BCLS-44R is a popular, single pole, 13/32” x 1 1/4” physical sized fuse. It is a fast acting, current-limiting fuse that provides reliable protection against thermal and overcurrent conditions in a wide range of circuit protection applications.

Application Field

The 5BCLS-44R fuse can be used in a variety of circuits, including branch circuit protection, control circuits, lighting circuits, and anywhere where stringent current-limiting characteristics are required. This fuse is compatible with most locations which require fuse class RK5, or time-delay fuses. It can be applied in 600 volts AC, or 250 volts DC, electrical systems.

Working Principle

The 5BCLS-44R\'s melting element is made of lead alloy of tin and silver, which gives it a high melting point. This ensures its reliability and allows it to have an interrupting rating of 10,000 amperes at 250 volts AC, or 5000 amperes at 600 volts AC. The melting element is enclosed in a fibre shell which is surrounded by a tin-plated steel wall. This ensures effective temperature transfer, and prevents any hot gasses that occur when the element melts from escaping. The element is held in place by a threaded end cap, while the fuse itself is sealed to its mounted by means of a bakelite based epoxy resin.

The 5BCLS-44R fuse has a time-delay characteristic, meaning it is slow-acting for current surges up to its rated amperage. This is beneficial because it allows more time for a circuit breaker or other protective device to trip and interrupt the power flow. It also means that the fuse will not blow unless the current flow persists beyond time established by its time-delay rating.

The 5BCLS-44R fuse provides reliable protection against thermal and overcurrent conditions while maintaining a low power loss factor. It is an essential safety component in a wide range of circuit protection applications, and is designed for long-lasting and robust performance.

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