Fuse, Time Delay, Class RK5, FRS-R Series, 100 A FRS-R-100
These 600VAC UL Class RK5 fuses are time delay and nonindicating. - They tolerate temporary inrush currents without opening, which prevents nuisance-blowing from motor and equipment startups. - Also called slow-blow Class RK5 fuses, these 200kA IR fuses open to disconnect an electrical circuit when exposed to sustained loads and short circuits. - They have no indicator for identifying a blown fuse, so they're sometimes used with an indicating fuse block or cover. - UL Class RK5 fuses provide moderate current limitation for general use applications where more current-limiting RK1 fuses aren't needed. - These fuses have an interrupting rating (IR) of 200kA and are the same size as Class H and K fuses, but have a rejection feature that prevents an accidental downgrade from a current-limiting system. - Their modified terminals ensure a match with the rejection clips in Class R fuse holders that prevent the installation of fuses with a lower interrupting capacity. - They're typically used in newer equipment, but can also be used with a Class H fuse holder to upgrade older installations from Class H or K fuses for improved overcurrent protection. - They are current-limiting to prevent electrical damage by disconnecting circuits before they're exposed to the full magnitude and duration of an overcurrent
| Amps | 100 A |
|---|---|
| AC Voltage Rating | 600V AC |
| DC Voltage Rating | 300V DC |
| Class | RK5 |
| Series | FRS-R |
| Visual Indication | Nonindicating |
| Speed | Time Delay |
| Body Style | Blade |
| Fits Fuse Block Style | Rejection |
| Interrupt Rating | 200kA at 600V AC, 20kA at 300V DC |
| Fuse Size | 7-7/8 in L x 1-1/8 in dia |
| Length | 7 7/8 in |
| Diameter | 1 1/8 in |
| Equivalent Brand and Series | Bussmann FRS-R, Edison ECSR, Littelfuse FLSR, Mersen TRS-R |
| Equivalent Series | ECSR, FLSR, FRS-R, TRS-R |
| Compatible Fuse Block Series | 1BR, R600 |
| Body Material | Fiberglass |
| Element | Dual |
| Standards | CE, CSA Certification Class 1422-01, UL 248-12 Guide JDDZ |
| Weight | 0.1587572 KG |
| ID | 988447 |