Littelfuse Industrial Business Unit JLLN Series Fuse; Bolt Mount; 200kA AC, 20kA DC; T;250A;300 VAC;125 VDC; Fast Blow; Cylindrical, Blade Terminal (Bolt)

Cylindrical Fuse • Mounting Type: Bolt Mount • Fuse Type: Cartridge • Current Rating (Amps): 250A • Voltage Rating - AC: 300 VAC • Voltage Rating - DC: 125 VDC • Response Time: Fast Blow • Features: - • Class: T • Breaking Capacity @ Rated Voltage: 200kA AC, 20kA DC • Package / Case: Cylindrical, Blade Terminal (Bolt)

Specifications

Series Features

Class T Fuses JLLN Series 300 V ac • Fast-Acting • 1–1200 A

The JLLN series fast-acting fuses are the most compact fuses available in ratings above 30 amperes — less than one-third the size of comparable Class R fuses. The JLLN fuses are used for short-circuit protection of drives and surge-sensitive components. When rated in accordance with the NEC, these fuses provide fast-acting overload and short-circuit protection for non-inductive circuits and equipment. Main switches containing JLLN fuses can be used to provide compact protection for meter stacks. It should be noted that molded case circuit breaker load centers and panelboards have increased interrupting ratings when “series rated” with Littelfuse Class T fuses. JLLN fuses are available in non-plated and silver plated terminations.

• 200,000 AIR: Safety feature providing reliable interruption of all overcurrents up to 200,000 A
• Current-limiting: Reduces damage caused by heating and magnetic effects of short- circuit currents; extends the equipment’s lifecycle
• Fast-acting: Provides fast short-circuit response for equipment requiring fast overload protection
• POWR-GARD® technology: Ensures quality overcurrent protection
• Compact size: More efficient use of available space – typical three-pole Class fuse blocks require less than 50% of the panel area required for Class R fuse blocks
• Functionality: When used as input or output fuses for surge-sensitive components, they can prevent opening of expensive semiconductor fuses that protect individual components

Variable speed drives, Power conversion devices (inverters, rectifiers, UPS), Power supplies and power distribution units, Compact main switches, Individual electric services and meters