Littelfuse JTD004ID Indicator Fuse 4A 600VAC 300VDC 20000A Slo-Blo

The JTD004ID from Littelfuse represents a robust solution for transformer protection, offering superior overload and short circuit protection that significantly reduces the risk of equipment damage. Ideal for general-purpose circuits—especially when space is at a premium—this indicator fuse provides a unique IEC Type II "No Damage" protection, ensuring reliability in both IEC and NEMA type motor starters. One standout feature is its ability to enhance safety by minimizing exposure to live circuits; the darkened indicator window remains that way once the fuse opens, allowing for instant visual confirmation regardless of power status. This design not only reduces downtime—eliminating the need for fuse testing—but also streamlines maintenance by enabling quick identification of open fuses. Additionally, the JTD_ID Indicator fuse boasts excellent time-delay characteristics, allowing for versatility across various applications and helping to reduce overall fuse inventory. This product is a dependable choice for motor control centers and helps provide essential short-circuit and ground fault protection in fused combination motor controllers.

• Time-delay fuse for superior overload and short circuit protection
• IEC Type II 'No Damage' protection for motor starters
• Visual open fuse indication with darkened indicator window for enhanced safety
• High interrupting rating up to 200 kA AC and 20,000 A DC for extreme fault currents
• Melamine body with corrosion-resistant nickel-plated bronze and brass caps
• Suitable for use in cramped spaces due to compact design
• Versatile time-delay characteristics reduce fuse inventory needs
• Ideal protection for transformers and general purpose circuits
• Quick identification of open fuses reduces downtime and maintenance
• UL Listed and CSA Certified compliance for safety assurance

• Voltage: 600 V AC, 300 V DC
• Ampere Rating: 4 A
• Interrupting Rating: 20,000 A @ 300 V DC, 200 kA rms symmetrical AC
• Opening: Time Delay (Slo-Blo/Time Lag)
• Material Body: Melamine
• Material Caps: Nickel-plated Bronze (8/10–60 A), Brass (70–200 A), Brass Cap with Copper Blade (225–600 A)
• Compliance: UL Listed, CSA Certified, CE (225–600 A only), RoHS (225–600 A only)
• Applicable Standards: UL 248-8, Class J
• Country of Origin: Mexico

Certification

Datasheets