Littelfuse JTD300ID Class J Indicator Fuse Slo-Blo Time Delay Knife-Blade 300A 600VAC 20000A 500VDC

The JTD_ID Series from Littelfuse is engineered for robust motor control and transformer protection, providing key features that enhance performance and safety. With its innovative indicator window, this fuse allows for immediate identification of open circuits, significantly reducing downtime as machine operators can quickly ascertain the need for maintenance without testing fuses. Its superior time-delay characteristics minimize nuisance openings across various applications, lowering the inventory requirements for replacement fuses, while also delivering enhanced overload and short circuit protection to mitigate equipment damage. Ideal for general purpose circuits in space-constrained environments, this series ensures safety improvements by lessening live circuit exposure, making it a vital component for any industrial setup.

• Indicator window for immediate open circuit identification
• Time-delay design minimizes nuisance fuse openings
• Current-limiting capability reduces short-circuit damage
• Slo-Blo opening suited for motor control and transformer protection
• High interrupting rating of 20,000 A at 500 V DC for enhanced safety
• Melamine body provides electrical insulation and durability
• Nickel-plated bronze and brass caps ensure corrosion resistance
• UL Listed and CSA Certified for compliance and safety assurance
• Suitable for motor control centers and transformer protection
• Reduces equipment damage with IEC Type II "No Damage" motor branch-circuit protection

• Voltage: 600 V AC, 500 V DC
• Amperage: 300 A
• Interrupting Rating: 20,000 A at 500 V DC
• Fuse Type: Time Delay, Current Limiting, Dual-element
• Opening: Slo-Blo/Time Lag (T)/Time Delay
• Material Body: Melamine
• Material Caps: Nickel-plated Bronze, Brass, Brass with Copper Blade
• Certification: UL Listed, CSA Certified, CE and RoHS (225–600 A only)
• Applicable Standards: UL 248-8, Class J
• Country of Origin: Mexico
• Series: JTD_ID Indicator Class J

Certification

Datasheets