Manufacturer: GE
Part Number: GF8B1200 
Voltage: 600VAC
Amperage: 1200A
Interrupting Capacity: 200kA
Class: L

Description: The GE GF8B1200 is a 600V, 1200A, 60Hz, 200kAIC Rated, L-Class Current Limiting Fuse. It is most commonly found on GE AKU-25 & AKRU-30 fused air circuit breakers.

Additional Info:
The GF8B1200 featured replaced 3x Littlefuse type KLLU1200 1200A L-Class Fuses for a local distributor who had a customer running on generator during the Covid-19 crisis.