Littelfuse JLLN Series Fast Acting Fuses
Littelfuse JLLN Series Fast Acting Fuses feature POWR-GARD technology with UL class T standard ensuring quality overcurrent protection. These fast-acting fuses are the most compact devices available in ratings above 30A, less than one-third the size of comparable Class R fuses. The JLLN series fuses can prevent the opening of expensive semiconductor fuses that protect individual components when used as input or output fuses for surge-sensitive components. These JLLN class T fuses come with a melamine body with either bronze (1A to 30A) or copper (35A to 1200A) caps and offer a voltage rating of 300V AC. Littelfuse JLLN series fast-acting fuses are used in, power conversion devices, switch enclosures, fuse pullouts, and motor or general-purpose circuits where space is not critical.
Features
- Compact size
- CSA certified
- Ensures quality overcurrent protection with POWR-GARD technology
- Provides fast short-circuit response for equipment requiring fast overload protection
- Reduces damage caused by heating and magnetic effects of short-circuit currents; extends the equipment’s lifecycle
- RoHS compliant
- Safety feature providing reliable interruption of all overcurrent up to 200,000A
Applications
- Compact main switches
- Individual electric services and meters
- Power conversion devices
- Power supplies and power distribution units
- Variable speed drives
Technical Specifications
| Parameters | Values |
|---|---|
| Ampere range | 1A to 1200A |
| Interrupting rating | AC: 200kA rms, symmetrical |
| DC: 50kA (1A to 30A); 20kA (35A to 1200A) | |
| Voltage rating | AC: 300V |
| DC: 50kA (1A to 30A); 20kA (35A to1200A) | |
| Material | 1A to 30A: melamine body, bronze caps |
| 35A to 1200A: melamine body, copper caps |