Littelfuse JTD050ID Indicator Fuse 50A 600VAC 300VDC Time Delay Industrial Cartridge

The JTD_ID Series from Littelfuse represents a leap forward in fuse technology, offering advanced overload and short circuit protection to safeguard valuable equipment. Notable for its "No Damage" IEC Type II protection, these indicator fuses are an ideal choice for use in motor control centers and general-purpose circuits, especially where space is limited. With a robust ampere rating of 50, these fuses also feature excellent time-delay cycling characteristics, which help minimize nuisance openings and reduce the need for extensive fuse inventory. One of the standout features of the JTD_ID indicator fuse is its straightforward user interface. An open fuse can be quickly identified through its indicating window, eliminating the need for testing and thereby reducing downtime; a dark window signals that the fuse has blown, allowing operators to efficiently coordinate repairs without exposing themselves to live circuits. This design enhances safety by ensuring clear visibility of the fuse status, regardless of whether power is on or off, making it an essential component for transformer protection and UL Listed series-rated molded case circuit breaker panels.

• Advanced overload and short circuit protection to reduce equipment damage
• IEC Type II No Damage protection for motor starters
• Time-delay design reduces nuisance fuse openings and extends fuse life
• Indicator window provides quick visual blown fuse identification without power or testing
• Improved safety by minimizing exposure to live circuits during inspection
• UL Listed and CSA Certified for safety and compliance assurance
• High interrupting rating supports 200 kA AC and 20,000 A DC fault currents
• Suitable for motor control centers and general-purpose circuits in tight spaces
• Reduces fuse inventory by serving multiple applications with superior performance
• Compatible with UL Listed series-rated molded case circuit breaker panels

• Voltage: 600 V AC, 300 V DC
• Amperage: 50 A
• Interrupting Rating: 20,000 A at 300 V DC, 200 kA AC
• Opening: Time Delay (Slo-Blo/Time Lag)
• Material: Melamine body; Nickel-plated Bronze caps (0.8–60 A); Brass caps (70–200 A); Brass cap with Copper Blade (225–600 A)
• Standards: UL 248-8, Class J
• Compliance: UL Listed, CSA Certified, CE Certified (225–600 A), RoHS (225–600 A)
• Country of Origin: Mexico
• Visual Indication: Blown fuse indicator window

Certification

Datasheets