Electrozad

Mersen r-rated fuses are current limiting, high interrupting rating fuses intended for the short circuit protection of medium voltage motors and motor controllers. R-rated fuses are back-up fuses that have a minimum interrupting rating and must be coordinated with overload relays in combination motor starters. The motor starter manufacturer generally specifies the r-rated fuse size. These fuses come with a 3 (size D) or 4 (size E) in diameter barrels with ferrules and are mounted in spring reinforced clips.

Ferraz Shawmut Amp-Trap® Motor Protection Fuse, 1-Barrel Back-Up Current Limiting Medium Voltage, Series: A480R, Indicating, 150 A, 4800 VAC, 63 kA Interrupt, Class: R, Ferrule Terminal, Clip Mounting, Epoxy, 3 in Dia x 16.13 in L Body

• The Amp-Trap® and 9F60 r-rated fuses are UL recognized
• Ferrule mounting for standard clips and interchangeability with other brands of fuses
• Current limiting for superior equipment protection
• Metal embossed catalog number and manufacturing date for lasting identification
• Hookeye for non load break isolation by hookstick
• On all other 3 in barrel if a hookeye is required, use the operating eye 9F61AAW612
• Blown fuse indicator to give positive identification of open fuse
• Amp-Trap® 2 lb tripped force - 0.5 in
• 9F60: 0.125 lb tripped force - 0.2 in
• Silver plated copper contact
• 12-3/4 in clip centers
• 5R size

• Catalog https://assets.unilogcorp.com/2/ITEM/DOC/IDW_FerrazShawmut_A480R5R_1HE_Brochure.pdf
• Specification Sheet https://assets.unilogcorp.com/2/ITEM/DOC/IDW_DOCUMENT_882fd44a5c1c68f5f4f64fe9a2fe4dc2477c3f5a46edd14265e94e5053ca05cc.pdf