Product Description
Eaton Bussmann JJN-80 is a Class T, 80 amp fast acting fuse with bolted blade terminals, rated for 300VAC and 160VDC applications, designed for current-limiting VFD and industrial equipment protection. Cross-referenced to Littelfuse JLLN 80 and equivalent to Cooper Bussmann JJN-80.
Specifications
Electrical
| Rated Current | 80A |
| Voltage Rating | 300VAC, 160VDC |
| Interrupting Rating (AC) | 200 kAIC at 300VAC |
| Interrupting Rating (DC) | 20 kAIC at 160VDC |
Material & Construction
| Construction | Current-limiting element with cartridge body |
Part Numbers
| Manufacturer Catalog Number | JJN-80 |
| UPC | 051712627801 |
| Cross-Reference Part Numbers | Equivalent: Littelfuse JLLN 80; Also referenced as Cooper Bussmann JJN-80, Limitron JJN-80 |
Frequently Asked Questions
Q: What are the specifications of the IT JJN-80 fuse?
A: The IT JJN-80 is a Class T fast-acting fuse with an 80-amp rating, 300VAC and 160VDC voltage rating, and 200 kAIC interrupting rating at 300VAC. It features bolted blade terminals for industrial equipment protection.
Q: What applications use the IT JJN-80 fuse?
A: The IT JJN-80 is designed for electric lift truck VFD systems, battery chargers, and variable frequency drive protection. It is commonly used in current-limiting circuits for Eaton Bussmann and equivalent industrial equipment.
Q: What are the cross-reference part numbers for the IT JJN-80?
A: The IT JJN-80 is equivalent to Littelfuse JLLN 80 and Cooper Bussmann JJN-80. All three designations refer to the same 80-amp Class T fast-acting fuse with bolted terminals.
Q: When should the IT JJN-80 fuse be replaced?
A: Replace the IT JJN-80 immediately after it blows or trips. A blown fuse indicates an electrical fault or overcurrent condition in the circuit. Do not reuse or bypass a blown fuse.
Q: Can the IT JJN-80 be used in 12-volt or 24-volt systems?
A: No. The IT JJN-80 is rated for 300VAC and 160VDC applications only. It is not suitable for low-voltage 12-volt or 24-volt systems. Verify voltage rating before installation.