Class L

Class L non-renewable fuses are current-limiting and are designed for the protection of feeders and service entrance equipment
These fuses conform to UL 248-10 and current ratings range from 601A to 6000A, with a voltage rating of 600VAC (DC ratings are also available). The interrupting rating is 200kA rms symmetrical (300kA fuses are also available). Available case sizes include 800A, 1,200A, 1,600A, 2,000A, 2,500A, 3,000A, 4,000A, 5,000A, and 6,000A.
As with the other classes of fuses conforming to 248 (G, J, R, and T), Class L fuses must be labeled "Current Limiting" and can also carry the "Time Delay" mark, although the standard doesn't have a requirement for their time-delay characteristics.
Features:
- AC & DC Ratings
- Fast operation under short circuit conditions
- Time delay for high inrush loads without nuisance opening
- Highly current limiting
Applications:
- Mains, Feeders
- Motors
- Lighting, Heating, and General Loads
- Circuit Breaker Back-up
- Metering Centers
- Switchboards
- Panelboards
- Load Centers
- DC Applications
Brands:
- Edison
- Ferraz Shawmut
- Littelfuse