3JS 500-R

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Fuses help protect electrical circuits from overload. The 3JS 500-R is an example of a fuse that can be employed in high-power electrical circuits. This device is capable of operating at a maximum voltage of 500 Volts and holding up to 30 amperes of current.

The 3JS 500-R features an entire ceramic body which serves as a fast-acting fuse and includes a metal-clad sleeve that acts as a slow-blow fuse. The fuse’s current ratings and time-delay levels are accurately engineered to assure reliable protection during overload conditions. This ensures the fuse can protect both the electric circuit and other downstream equipment in the circuit from damage.

The 3JS 500-R is commonly used in a wide range of industrial and commercial applications such as electric motors, HVAC systems, and air compressors, as well as electrical systems in buildings, ships, and aircraft. In these applications, it is important to have a reliable fuse that can protect against current overloads, short circuits, and circuit disturbances.

The working principle of the 3JS 500-R is to detect an increase in current (or overload) and then quickly isolate the overload current by forming an electrical link between the two contacts. The fuse essentially functions as a current limiter, allowing just enough current to pass through the fuse element for the circuit to operate as normal. When the current levels exceed the 3JS 500-R’s rated levels, the fuse will blow and the contacts will no longer conduct any current. This helps to protect both the circuit and any downstream equipment from damage.

The 3JS 500-R is a reliable and cost-effective solution for protecting high-power electrical circuits. It has an accurate design with carefully calibrated current ratings that assures protection from circuit overloads, short circuits, and circuit disturbances. The fuse is easy to install, and is an essential component in many industrial, commercial, and residential applications.

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