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  • True dual-element fuses with a minimum 10 second time-delay at 500% overload.
  • Long time-delay minimizes needless fuse openings due to temporary overloads and transient surges.
  • 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 (self certified).
  • High degree of current limitation due to the fast speed-of-response to short-circuits.
  • Faster response to damaging short-circuit currents than mechanical 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.
  • Space-saving package for equipment down sizing
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