Pro Installer Class T Fuseholders provide high-capacity fusing, with very fast response and very high interrupt ratings (Class-T 20,000 - 50,000 Amps interrupt). These are ideal for protecting today’s demanding onboard power electronics technology including inverters and battery chargers. They also protect wiring from short circuits, for example as a main fuse to protect house circuits, where modern battery technologies such as Lithium Ion and AGM are capable of producing very high short circuit currents.