Description
This 20 Amp slow blow ceramic fuse features MDA style construction with precise dimensions of 1 1/4" length by 1/4" width. Commonly found on various hot tub and pool control boards, this automotive-style fuse uses ceramic material instead of glass for superior heat dissipation.
The ceramic construction means you cannot visually inspect whether the fuse has failed - testing requires a multimeter to check continuity across the terminals. Due to its larger size relative to typical circuit board components, this fuse may experience gradual failure from prolonged heat exposure. If your fuse has blown, simple replacement might provide only temporary relief - consider investigating the underlying cause of excessive heat buildup for a lasting repair.
Compatible with select spa and pool equipment utilizing 20 Amp MDA style ceramic fuses measuring 1 1/4" x 1/4".
