The Blue Sea Systems 5118 Class T Fuse – 250A is a high-performance DC protection fuse designed for high-current battery systems, including lithium (LiFePO4), AGM and other deep-cycle battery installations.
Featuring a 20,000A interrupt capacity at 125V DC, this Class T fuse provides exceptional short-circuit protection, making it particularly suitable for modern lithium battery systems capable of delivering extremely high fault currents.
Unlike conventional automotive fuses, Class T fuses are designed to safely interrupt substantial short-circuit currents, helping protect electrical wiring and equipment in demanding battery-powered applications.
The 250A current rating makes this fuse well suited to larger DC loads, including inverters, battery distribution systems and off-grid power equipment, where high-current protection and reliable fault interruption are essential.
Installation Note: This fuse requires a compatible Class T fuse holder, such as the Blue Sea Systems 5502, sold separately. Fuse selection must account for cable current-carrying capacity, equipment requirements and the battery system's prospective short-circuit current. Install as close to the battery positive terminal as practical.
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