Ultraflex Group

CLASS T fuseholders

CLASS T fuseholders Battery distribution components BEP® - Electric panels and instruments

CLASS T fuseholders

Provide high-capacity fusing, with very fast response and very high interrupt ratings (Class-T 20,000-50,000 Amps interrupt). These fuse holders are ideal for protecting today’s demanding on board power electronics technology including inverters and battery chargers. They also protect wiring from short circuits, for example as a main fuse to protect house circuits, where modern battery technologies such as Lithium Ion and AGM, are capable of producing very high short circuit currents.



• Modular sizing and common interconnection height: Easily linked with other Pro Installer Busbars and Fuseholders, saving installation time and space

• Durable construction allows fuses to run at maximum load

• Radiused ends improve large cable routing options (can fit back-to-back lugs at any angle -90o to +90o)

• Innovative clear covers provide insulation/protection, with “snap outs” for extra cable access as required

• Label recess on cover allows fitting up to 1/2” width (12.7mm) printed labels

• Insert molded studs offer superior mechanical strength

• Designed for the harsh marine environment



• Cable connection studs: 10mm (3/8”) studs

• Fuse mounting studs: 10mm (3/8”)

• Fuse type: Class T (JLLN / TJN / A3T)

• Maximum amperage: 400A

• 50 VDC

• High temperature, fiber reinforced plastic base provides strength and chemical resistance

• Clear poly carbonate cover

• Tinned CDA102 copper conductors, stainless steel studs, and nickel plated brass nuts for longevity in the marine environment

• All threads are metric





       Q.TY                 SIZE mm (")




mm (")

778T2S-400 Class T 225A-400A 10 mm (3/8") + 2 per cavo 10x29 (3/8x1/8) 225A-400A 147x49x61 (5.8x1.9x2.4)
778T2S-600 Class T 450A-600A 12 mm (0.47") + 2 per cavo 10x29 (3/8x1/8) 400A-600A 147x49x61 (5.8x1.9x2.4)

Part No. Model Description
68872V 778T2S-400 225-400A Fuseholder
68873X 778T2S-600 400-600A Fuseholder