Motor feeders, disconnects and panels using Class R fuse clips need a replacement that matches both the class and the time-delay characteristic. The Littelfuse FLSR200 is a 200 A, 600 VAC Class RK5 dual-element time-delay fuse with a 200,000 A interrupting rating. Maintenance electricians stock it for general purpose and motor circuits where inrush would nuisance-blow a fast-acting fuse.
Why maintenance electricians pick it
- Dual-element time delay rides through motor starting inrush.
- Class RK5 fits rejection-type Class R fuse clips.
- 200,000 A AC interrupting rating (20,000 A DC).
- Rated 600 VAC and 300 VDC.
- Cross-references to common RK5 fuses such as Bussmann FRS-R-200 and Mersen TRS200R.
Specifications
| Spec |
Detail |
| Brand |
Littelfuse |
| Model |
FLSR200 (FLSR series) |
| Class |
UL Class RK5, current limiting, dual-element time delay |
| Ampere rating |
200 A |
| Voltage |
600 VAC / 300 VDC |
| Interrupting rating |
200 kA AC / 20 kA DC |
| Size |
1-27/32 in dia. x 9-5/8 in, knife blade |
| Listings |
UL listed, CSA certified |
| Sold as |
Each |
Pro tip from the counter
Before dropping a new 200 A fuse in, look at the clips. Blue or brown heat discolouration or weak spring tension means the old fuse was running hot at the clip, and a new fuse in the same clips will do the same; have the clips or clip clamps replaced while the disconnect is locked out.
Best for: motor feeder disconnects, industrial panels with Class R clips, HVAC and pump equipment, maintenance spare stock
Downloads: FLSR datasheet (PDF)
Ships across Canada from Vaughan, ON. Stocking a plant's spare fuses? Get pricing through a quote or at (905) 553-7171.