Blue Sea Systems 4013-BSS CableCap Stud Black

Blue Sea Systems CableCap Stud Covers - Black 1 x 0.500" Stud (4013-BSS)

The Blue Sea Systems 4013-BSS (Model 4013) is a heavy-duty, flexible black PVC terminal insulation boot designed to insulate high-amperage electrical connections on 1/2" (M12) battery studs, power distribution posts, high-current busbars, and heavy-duty switches.

Molded from high-flexibility, flame-retardant marine vinyl, the 4013-BSS protects exposed, energized stud terminals and ring terminals from accidental physical shorts caused by dropped tools, loose hardware, or shifting cargo. Installing CableCaps ensures electrical system compliance with ABYC E-11 and USCG 33 CFR mandates requiring physical insulation over live DC positive terminals and high-current connection points.

Key Features

• ABYC & USCG Compliance: Meets marine safety regulations requiring physical insulation over live battery terminals and distribution studs.

• Heavy-Duty PVC Construction: Flexible marine-grade vinyl resists cracking, UV exposure, battery acid, oil, and harsh environmental conditions.

• Short-Circuit Protection: Prevents accidental tool bridging, loose metal contact, and fire hazards across exposed high-current studs.

• Seamless Slip-On Fit: Snug fit over ring terminals and stud hardware while maintaining flexibility for wire strain relief.