3/8" (M10) Bus Bar 250A 12V DC Max 48V DC, 3 x #8 Screws

Key Features

• Maximum Amperage: 250A DC
• Maximum Voltage: 48V DC / 300V AC
• Main Terminal Stud: 1 x M10 (3/8") stainless steel
• Distribution Terminals: 3 x #8 (M4) stainless steel screws
• Base Material: Glass fiber-reinforced nylon for insulation and strength
• Contact Plate: Nickel-plated brass for high conductivity and corrosion resistance
• Includes a removable cover to protect connections from accidental contact

Replaces / Cross-Reference Part Numbers

• This is a universal power distribution block. Verify specifications for direct replacement.
• Suitable replacement for any bus bar rated for up to 250A with one M10 (3/8") main stud and three #8 screw terminals.

Compatibility & Fitment

• Automotive 12V and 24V systems for accessories and high-current devices
• Marine electrical systems for boats and yachts
• RV, camper, and travel trailer power distribution panels
• Off-grid solar power systems and battery banks
• Golf carts and other electric utility vehicles
• Industrial equipment requiring a centralized power or ground connection point

When to Replace

• Visible corrosion, pitting, or arcing marks on the studs or bar
• Physical damage such as a cracked base or bent studs
• Overheating under normal electrical load
• High resistance or significant voltage drop measured across the bar
• When upgrading system components to handle higher amperage

Installation Tips

• Disconnect the negative terminal of the battery bank before beginning installation.
• Ensure the mounting surface is clean, flat, and structurally sound.
• Use properly sized and crimped ring terminals for all cable connections.
• Secure main stud nut and terminal screws to the appropriate torque specification to prevent loose connections.
• For marine or high-moisture environments, consider applying a dielectric grease or corrosion inhibitor to terminals after tightening.
• Verify all connections are secure before re-installing the protective cover and reconnecting power.