Mersen A4BY Class L Fuse, 600VAC/300VDC, 200kA AC/100kA DC, 800 Ampere, 2-1/2" Diameter x 8-5/8" Length

Mersen class L fuse count on the high interrupting rating. When it comes to protecting service entrance equipment, feeder circuits, and circuit breakers, fuse are the industry's favorite. The is a 100 percent rated device and may be applied at continuous currents up to its ampere rating. A 4-second minimum time-delay at 500 percent rating allows the to pass normal current surges and to coordinate with ground fault relays. Features and benefits: unique dimensions prevent replacement by other fuse classes. Blade stamped catalog numbers for permanent identification. Glass melamine body and plated terminals provide superior reliability in harsh environments. Applications: mains, feeders, circuit breakers, load centers, panelboards, switchboards, metering centers. Approvals: UL listed to standard 248-10 (601-6000A) File E2137. CSA certified to standard C22.2 No. 248.10 (601-6000A). Self-certified for DC per UL248 (601-6000A). Volts ratings: 600VAC/300VDC. I.R ratings: 200kA AC/100kA DC. Current-limiting capability as 800 ampere. Measures 2-1/2-inches diameter by 8-5/8-inches length.

• Count on the high interrupting rating
• Unique dimensions prevent replacement by other fuse classes
• Blade stamped catalog numbers for permanent identification
• Glass melamine body and plated terminals provide superior reliability in harsh environments
• Uniform characteristics in all ampere ratings