3JS 150-R

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Fuses, a type of electrical device, are designed to protect electrical equipment from current overloads. They are commonly used in both industrial and residential settings. The 3JS 150-R is one type of fuse specifically designed to protect high wattage electrical equipment. This article will discuss the 3JS 150-R\'s application field and working principle.

The 3JS 150-R is designed to protect high wattage devices such as air conditioning units, television sets, computers, and other electrical equipment. It is a type of high-speed elective fuse that has been specifically designed to provide maximum current protection for power-based devices. The fuse has three independent thermal elements which allow it to respond quickly to current overloads. This ensures that the protected equipment will be safe from harm in the event of an overload.

The 3JS 150-R is designed to meet the requirements of UL 917, the standard for high speed elective fuses. This fuse is rated for 100 to 150 amperes of continuous current. It has a voltage rating of 120 to 600 volts and an interrupting current rating of 10,000 amperes at 120 volts. It is made from a polycarbonate material with an operating temperature range of -40 to 85 degrees Celsius. The fuse is available in 1.25, 2, 3, and 4 inch sizes. It is also UL listed.

The working principle of the 3JS 150-R is based on a thermal sensing element, which is designed to detect the temperature increase caused by an electrical overload. When the temperature reaches a certain level, the fuse responds by tripping the circuit breaker, disconnecting the power flow and thereby protecting the electrical equipment from further damage or accidents. This type of fuse is designed to provide fast protection against short circuit and overload conditions, as well as being relatively insensitive to inrush currents. It is an ideal choice for protecting sensitive measuring and control circuits.

In summary, the 3JS 150-R is a high-speed elective fuse that is designed to protect high wattage electrical equipment from current overloads. It is a UL-listed device that has three independent thermal elements, allowing it to respond quickly to current overloads. Its working principle is based on a thermal sensing element which detects the temperature increase caused by an overload and trips the circuit breaker to protect the electrical equipment from further damage. It is an ideal choice for protecting sensitive measuring and control circuits.

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