

Documentation & Downloads

Bussmann JJS-45 Class T Very Fast Acting Fuse, 45 A, 600 V, 200 kAIC, Small Footprint, Ferrule Ends
- MPN: JJS-45
- UPC: 051712628457
- PPN: BUS-JJS-45
CAD
$40.03
/ EA
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
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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
Additional
- Amperage
- 45 A
- Interrupting Rating
- 200 kAIC at 600 Vac
- Class
- Class T
- Dimensions
- 1.56 in (L) x 0.81 in (W) x 0.81 in (H)
- Fuse Indicator
- Non-indicating
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CAD
$40.03
/ EA
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Looking to buy a large quantity?
To view product inventory
CAD$40.03/ EA
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