SPJ-4E100

The SPJ-4E100 is an Electrical Specialty Fuse that is designed to serve as an effective way to protect electrical circuit components from damage caused by overloads or short circuits. The SPJ-4E100 is often used in industries that require reliable circuit protection, such as automobile and aviation, and it is also suitable for use in residential and commercial buildings.

The SPJ-4E100 consists of two main parts, an enclosure and a fuse element. The enclosure is made from a glass-filled polycarbonate material that is Flame Class V-0 certified, meaning it will not propagate flame when exposed to an open flame. The material is highly resistant to impacts, making it ideal for applications in high-vibration environments. The enclosure also features a transparent window, allowing for easy visual inspection of the fuse element condition.

The fuse element of the SPJ-4E100 is constructed of a copper alloy material that is fully Metal Oxide Varistor (MOV) protected, meaning it will not cause sparks or short circuits due to arc-over or overloads. The fuse element also features a built-in meter that will measure the current passing through the circuit in real-time, allowing the user to monitor the condition of the circuit and take action to reduce damage if needed.

The working principle behind the SPJ-4E100 is that when a fault condition is detected the current passing through the circuit will cause the fuse element to rapidly heat up. This heating will cause the fuse element to expand and break the circuit, cutting the power to the circuit and preventing further damage. The break must occur quickly enough to prevent the heat from causing damage to the circuit components, meaning the speed of the trip must exceed the speed of the heat.

The SPJ-4E100 is designed for use in electrical circuits up to 600 VAC and 10,000 amps, and it is UL recognized and CE approved for use in various commercial applications. The SPJ-4E100 is a fast-acting fuse that is effective in preventing damage to expensive electrical components due to overloads or short circuits. Because of its construction and reliable performance, the SPJ-4E100 is widely used in a variety of industries and commercial applications.