Bussmann JJS-45 Class T Very Fast Acting Fuse, 45 A, 600 V, 200 kAIC, Small Footprint, Ferrule Ends

Description

Features

• Engineered with a highly compact Class T form factor, the JJS-45 is roughly one-third the physical size of a standard 600V Class R fuse. This small footprint allows industrial control panel builders and OEM designers to utilize smaller, less expensive fuse blocks and disconnect enclosures, maximizing valuable cabinet real estate without sacrificing high-voltage circuit safety.
• Boasting a massive 200,000 Amp RMS Symmetrical interrupting rating at 600 Vac, this fuse provides ultimate short-circuit protection for high-energy industrial facilities. It safely isolates severe electrical faults before they can breach or destroy downstream components, ensuring your machinery easily satisfies rigid NEC and OSHA safety compliance codes.
• Designed with advanced current-limiting, fast-acting internal elements, the JJS-45 clears overcurrent events almost instantaneously. By restricting destructive let-through energy (I2t) to an absolute minimum, it shields vulnerable solid-state devices, variable frequency drives (VFDs), and UPS systems from catastrophic electronic failure during a surge.
• Rated for 45 Amps at up to 600 Volts AC, this fuse is purpose-built for main switches, branch feeder circuits, and dedicated industrial machinery inputs. This heavy-duty power threshold delivers stable, non-degrading conductivity under continuous full-load operations, effectively eliminating premature aging and frustrating nuisance trips.

Documentation & Downloads

Specifications