ZOOKOTO 150VDC IR10KA Fuse Block 300A Class T Fuse Holder

The ZOOKOTO 150VDC 300A Class T fuse block is a heavy-duty, V0-rated fuse holder engineered to protect high-current inverter and appliance circuits in boats, RVs, trucks, and cars.

This robust fuse block combines a Class T slow-blow 300A cartridge with a durable PA66+PC / ABS polymer housing, silver-plated terminals and a stud-style layout to deliver reliable overcurrent protection where large cables and high DC voltages are used. Built for installers who need a compact, serviceable fuse location near the battery or distribution bus, the holder accepts 5/16" (M8) lugs and leaves room for oversized cable packs while offering flame resistance and straightforward wiring access.

How does this fuse block keep high-power systems safe?

The Class T slow-blow fuse element responds to sustained overcurrent while tolerating temporary surges common when starting motors or powering inrush-heavy devices. When an overload persists, the fuse interrupts current flow to prevent wiring, equipment or battery damage. The holder’s silver-coated copper terminals and ceramic reinforcement improve conductivity and heat resistance for consistent performance under heavy load.

• 300A Class T slow-blow cartridge rated to interrupt fault currents up to IR10KA.
• 5/16" (M8) stud terminals for secure lug connections and high-current capacity.
• Sterling silver surface and alumina-ceramic copper terminal reinforcement for stable conductivity.
• PA66+PC and ABS polymer body with V0-level flame resistance for safer installations.

What makes it easy to install in tight marine or vehicle spaces?

The block’s stud-style layout and removable cover with breakouts let you route large gauge cables from any direction and still attach heavy-duty lugs. Ample clearance around the studs accommodates multi-layer cable lugs and large terminal packs, reducing the need for extra adapters. Mounting holes and a simple shell allow fast placement close to the battery, which is the recommended location for maximum protection.

• Cover breakouts permit wire entry from multiple angles without modifying the housing.
• Reserved space around studs for bulky lugs or combined cable packs.
• Compact footprint designed for mounting near batteries or distribution blocks in boats, RVs, trucks and cars.

Which technical specs should installers check before buying?

Confirm the system voltage, expected continuous current, and the physical lug size so the fuse block matches your battery, inverter or load wiring. This holder is rated for 150VDC and a 300A Class T fuse cartridge with 5/16" (M8) terminals; it’s optimized for high-current DC applications. Also verify available mounting space and whether a slow-blow characteristic fits the loads you plan to protect.

• Voltage rating: 150VDC; Fuse rating: 300A Class T (slow-blow).
• Terminal stud size: 5/16" (M8) compatible with standard heavy-duty lugs.
• Body material: PA66+PC and ABS polymer with V0 flame-retardant rating.
• Interrupt rating: IR10KA suitable for many inverter and battery fault conditions.

Who is this for? The ZOOKOTO 300A Class T fuse block is aimed at professional installers, DIY marine and RV enthusiasts, and vehicle upfitters who need a reliable, high-current DC protection point near a battery or inverter. It’s particularly suited for systems with large cable lugs, inrush-prone loads, or where a compact, flame-resistant fuse holder streamlines wiring and improves circuit safety. Choose this holder when you require a serviceable, heavy-duty fuse location that meets the practical needs of high-power automotive, marine, and mobile electrical systems.