Class J Time Delay Fuses have a faster response to short-circuit currents than other overcurrent protective devices

• Dual-Element, Time-Delay - 10 seconds (minimum) at 500% rated current
• IR: 200kA RMS Sym. 300kA RMS Sym. (self certified)
• Long time-delay minimizes needless fuse openings due to temporary overloads
• Can often be sized for back-up protection against motor burnout from overload or single-phasing if other overload protective devices fail
• High interrupting rating to safely interrupt overcurrents up to 300kA
• High degree of current limitation due to the fast speed-of-response to short-circuits
• Faster response to short-circuit currents than other overcurrent protective devices
• Reduces let-through thermal and magnetic forces in order to protect low withstand rated components
• Proper sizing provides "No Damage" Type "2" coordinated protection for NEMA and IEC motor control in accordance with IEC Standard 947-4-1
• Dual-element fuses have lower resistance than ordinary fuses so they run cooler
• Lower watts loss reduces power consumption
• Unique dimensions assure that another class of fuse with a lesser voltage rating, interrupting rating or current-limiting ability cannot be substituted
• UL Listed, Class J
• CSA Certified HRCI-J 200,000 AIR
• Class J per CSA 22.2 No. 248.8, Class 1422-02
• Documentation
Spec Sheet