The ST blade fuse block can offer a space saving and cost effective solution to adding circuit protection when there are limited available circuit breakers on the distribution panel. A single circuit breaker on a distribution panel can provide the circuit protection for the feed wire to the ST blade fuse block. This is frequently done for electronics that each have their own ON-OFF switch and dont require the switching offered by a circuit breaker. The 12 position ST blade fuse block then provides a consolidated location for fuses for each of the electronics.
Additional Info: Dimension: 3.315 in. W x 6.472 in. H, 12 Circuit With Negative Bus