Littelfuse JTD040ID Indicator Fuse 40A 300VDC 600VAC 20000A Slo-Blo Industrial Cartridge

The JTD_ID Series, manufactured by Littelfuse, offers advanced protection for a wide range of electrical applications, enhancing both safety and efficiency. With superior time-delay characteristics, these indicator fuses significantly reduce nuisance openings, accommodating various uses and minimizing the need for extensive fuse inventory. Particularly noteworthy is the fuse's ability to improve workplace safety; once the indicator window darkens, it remains dark to signal a blown fuse regardless of whether the power is on or off, reducing the risk of personnel exposure to live circuits. Ideal for motor control centers and general-purpose circuits where space is limited, these fuses deliver IEC Type II “No Damage” protection, ensuring that equipment is safeguarded from short circuits and overloads. The industrial cartridge design, rated for 40 amps, provides reliable performance with an interrupting rating of 20,000A at 300VDC. In addition, their easy-to-read indicating window allows quick identification of blown fuses, significantly reducing downtime and streamlining maintenance processes for operators.

• Indicator window darkens to signal blown fuse even when power is off for enhanced safety
• IEC Type II “No Damage” protection minimizes equipment damage from short circuits and overloads
• High interrupting rating of 20,000 A at 300 V DC for reliable fault clearing
• Current limiting design reduces damage from short-circuit currents
• Time-delay characteristic reduces nuisance fuse openings
• Easy-to-read indicator window for quick blown fuse identification and reduced downtime
• Compact industrial cartridge design ideal for space-constrained applications
• Suitable for motor control centers and general-purpose circuits

• Voltage DC: 300 V
• Voltage AC: 600 V
• Interrupting Rating DC: 20,000 A @ 300 V DC
• Interrupting Rating AC: 200 kA rms symmetrical
• Amperage: 40 A
• Time Delay: Yes
• Current Limiting: Yes
• Material Body: Melamine
• Material Caps: Nickel-plated Bronze, Brass, Brass Cap with Copper Blade
• Applicable Standards: UL 248-8, Class J
• Certifications: UL Listed, CSA Certified, CE (225–600 A only), RoHS (225–600 A only)
• Fuse Weight: 0.084–3.120 lbs (38.10–1415.21 grams)
• Country of Origin: Mexico

Certification

Datasheets