Littelfuse JTD125ID Indicator Fuse 125A 600VAC 500VDC Knife-Blade Slo-Blo Time Delay

The JTD125ID from Littelfuse is a highly advanced indicator fuse designed to enhance safety and efficiency across various industrial applications. With its superior time-delay characteristics, this fuse minimizes nuisance openings and is versatile enough to support motor control centers, transformer protection, and general-purpose circuits, especially in space-constrained environments. One of its standout features is the darkening indicator window, which remains visible whether the power is on or off, thereby reducing the risks associated with handling live circuits and ensuring quick and safe identification of blown fuses without the need for testing. Furthermore, the JTD125ID offers effective overload and short-circuit protection, contributing to reduced equipment damage and inventory needs, making it an essential component for modern panel builders and maintenance personnel.

• High interrupting rating of 20,000 A at 500 V DC for enhanced safety
• Darkening indicator window visible with power on or off for quick blown fuse identification
• Time-delay design reduces nuisance fuse openings and cycling
• Current-limiting feature minimizes damage from short circuits and overloads
• Improves safety by minimizing live circuit handling during fuse checks
• Supports motor control centers, transformer protection, and general-purpose circuits
• Compact construction ideal for space-constrained industrial environments
• Melamine body with nickel-plated bronze caps offers durability and reliability
• Reduces equipment damage and maintenance inventory requirements
• UL Listed, CSA Certified, CE compliant ensuring adherence to industry safety standards

• Voltage: 600 V AC, 500 V DC
• Ampere Rating: 125 A
• Interrupting Rating: 20,000 A @ 500 V DC
• Time-Delay: Yes
• Current Limiting: Yes
• Material: Melamine body, Nickel-plated bronze caps
• Dimensions: Length 57.2 mm to 95.3 mm, Diameter approx. 12.7 mm to 27.9 mm
• Applicable Standards: UL 248-8, Class J
• Compliance: UL Listed, CSA Certified, CE, RoHS
• Country of Origin: Mexico

Certification

Datasheets