Industrial JJS-350 Current Limiting Class T Fuse

Description:

The T-Tron JJS-350 Current Limiting Class T Fuse is used in electrical protection systems for providing fast-acting overcurrent protection in high-capacity power distribution and industrial equipment. Commonly installed in variable frequency drives, electrical switchgear, motor control systems, and power distribution panels requiring high interrupting capacity and short-circuit protection. Maintenance teams and electricians use this part for fuse replacement, electrical system repairs, equipment protection upgrades, and restoration of protected power circuits.

Applications:

The T-Tron JJS-350 Fuse is commonly used in industrial electrical applications including VFD protection, large power distribution systems, commercial electrical equipment, and industrial control panels where reliable current limitation and rapid fault clearing are essential. The Class T design provides very fast-acting protection with a compact footprint and high interrupt rating for demanding electrical environments.

Technical Specifications:

• Manufacturer: T-Tron / Eaton Bussmann Series
• Model / Part number: JJS-350
• Product type: Current limiting Class T fuse
• Fuse class: Class T
• Current rating: 350 A
• Voltage rating: 600 VAC
• Fuse action: Very fast acting
• Interrupting rating: 200 kA RMS symmetrical at 600 VAC
• Fuse body style: Cartridge fuse
• Terminal type: Bolted blade end x bolted blade end
• Diameter: 1 inch
• Length: 3.63 inches
• Function: Provides high-speed protection against short circuits and overcurrent conditions
• Application: VFD line protection, industrial power distribution, and electrical equipment protection
• Standards: UL 248-15 Class T, CSA, CE
• Application environment: Industrial facilities, manufacturing plants, and commercial electrical systems

Common Replacements:

• Eaton Bussmann JJS-350 Limi-tron Class T Fuse
• Cooper Bussmann JJS-350 350A 600V Fuse
• Little-fuse JLLS-350 Class T Fuse