JK30 Plug-In Self-Resetting Fuse A compact, plug-in overcurrent protector for low-voltage DC circuits that automatically restores service after a fault clears. The JK30 combines tool-free installation, a broad range of current ratings, and rugged construction for reliable protection in 12–30 V DC systems. Key benefits Automatic recovery: the fuse resets itself when an overcurrent condition ends, restoring service without manual intervention. Less maintenance: no fuse replacements or spare fuses needed, lowering upkeep and inventory costs. Fast installation and field replacement: plug-in form factor allows tool-free insertion and removal to speed repairs and minimize downtime. Wide current selection: choose the precise current rating for correct protection and reduced nuisance trips. Compact, robust design: suitable for panel or enclosure mounting where space is limited and durability is required. Designed for low-voltage DC systems: 30 V rating fits most 12–30 V applications. Features and specifications Type: Plug-in self-resetting fuse (JK30) Voltage rating: 30 V Available current ratings: 0.9 A, 1.1 A, 1.35 A, 1.5 A, 1.6 A, 1.85 A, 2 A, 2.5 A, 3 A, 4 A, 5 A, 6 A, 7 A, 8 A, 9 A, 10 A Automatic restoration after fault clears Compact package for panel or enclosure mounting Tool-free plug-in installation for quick replacement in the field Compatibility and performance Intended for low-voltage DC protection in systems up to 30 V. Select the JK30 current rating that matches the normal operating current of your circuit to ensure proper protection and avoid unnecessary trips. Rugged construction supports long-term use in commercial and industrial environments. Practical use scenarios 24 V LED lighting: Protect a 24 V DC LED driver from overcurrent events while allowing lights to come back online automatically once the fault is cleared. Battery charging and small UPS circuits: Safeguard 12–24 V charging and backup components against short circuits and overloads without the need to replace blown fuses. Automotive and telecom accessories: Provide overcurrent protection for 12–30 V accessories or equipment in vehicles, telecom shelves, and remote power systems with quick field serviceability. For reliable, low-maintenance DC circuit protection choose the JK30 plug-in self-resetting fuse in the current rating that fits your application.