Small motors, control transformers and 15 A branch circuits on 600 V equipment need a fuse that tolerates starting surges without giving up short-circuit protection. The Littelfuse FLSR015 is a 15 A, 600 VAC Class RK5 dual-element time-delay fuse with a 200,000 A interrupting rating, sold here as a package of 10 for maintenance stock.
Why maintenance electricians pick it
- Package of 10, enough spares for several three-phase disconnects.
- Dual-element time delay handles motor and transformer inrush.
- Class RK5 fits rejection-type Class R clips.
- 200,000 A AC interrupting rating, current limiting.
- Rated 600 VAC and 300 VDC.
Specifications
| Spec |
Detail |
| Brand |
Littelfuse |
| Model |
FLSR015 (FLSR series) |
| Class |
UL Class RK5, current limiting, dual-element time delay |
| Ampere rating |
15 A |
| Voltage |
600 VAC / 300 VDC |
| Interrupting rating |
200 kA AC / 20 kA DC |
| Size |
13/16 in dia. x 5 in, ferrule |
| Sold as |
Package of 10 |
Pro tip from the counter
When one fuse blows in a three-phase disconnect, replace all three. The two survivors carried the load while the motor single-phased, so their elements may already be heat-weakened and likely to open on the next start; the leftover spares from this 10-pack cover it.
Best for: 600 V motor starters and disconnects, control transformer primaries, pump and fan circuits, maintenance spare stock
Downloads: FLSR datasheet (PDF)
Shipped from Vaughan, ON to anywhere in Canada. Plants and contractors can request a quote or call (905) 553-7171.