Those LBtype air load break switches of 200AF and 400AF can be fitted with power fuses. However, even if the LB-type units have 400AF ratings, power fuses up to 200 Amps only are required. The LBS is an air load break switch with attached power fuses.
Choice between these two totally depends on the customer. Load break switch with vacuum circuit breaker is more reliable option. Load break switch with spring mechanism are generally provided with Fuse protection.
DAYA offers Vacuum Circuit Breakers up to 1200A and Load Break Switches up to 600A. These switches use vacuum interrupters capable of thousands of full-load interruptions, unlike conventional air-breaking devices that are generally rated for hundreds of operations. The standard non-automatic load break switches, ranging from 5 to 15KV, include a manual operating handle, stored-energy, trip-free operation, no-sparks interruption, visible disconnect, and automatic grounding of the load side terminals. They are virtually maintenance-free, compact in size, oilless, and easily connected.
Custom HV Vacuum Load Break Switch With Fuse can be customized to fit your specific application requirements while reducing maintenance costs and improving reliability.
Gear is configured to meet any system or application need
Switches and fuses never need adjusting, programming, or dielectric testing
Utility-grade design withstands time and the elements
Preassembled and simpler construction requirements
Lower up-front and maintenance costs than metal-clad switchgear
Fuses offer faster fuse-clearing time and reduce system stress compared to circuit breakers