MJS 3-R Circuit Protection

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MJS 3-R fuses, also known as low-voltage power loop breakers, are an important component in industrial electrical systems and are vital for providing secure protection against electrical faults. MJS 3-R fuses are compact and dependable circuit breakers made with tin-plated copper alloy blades. They feature an automatic circuit breaker mechanism that can detect when the circuit is overloaded and switch off the circuit to prevent dangerous electrical problems.

The main application field of MJS 3-R fuses are motor starter controls, power distribution panels, and power factor correction devices. Generally, the MJS 3-R fuse is used for protection in low-voltage electrical control systems, such as those used in a wide variety of industry and commercial applications. It is commonly found in oil and gas processing plants, manufactory automation equipment, and electric utility systems.

The MJS 3-R fuse’s working principle relies on the heat of the short circuit current passing through an element to operate a bi-metallic device. When the circuit is overloaded or short circuited, current flows through the element which then creates heat and causes the bimetal to bend and move the tripping head away from the surface of the contact. This separates the contacts and prevents further electricity from flowing, protecting the circuit. MJS 3-R fuses will reset after the overload is cleared, allowing the current to start flowing again.

MJS 3-R fuses come in a range of sizes, from 0.5 amps to 500 amps, and are available in UL Listed/CSA certified 600VAC, 1200VAC and 1500VAC ratings. They are also used in a variety of temperature-controlled applications, from refrigeration and air conditioning to lighting and heating, to protection and safety in heavy industrial applications. Their dependability and reliability make MJS 3-R fuses the ideal solution for any low-voltage circuit protection requirement.

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