Insulated Flexible Copper Busbar for Battery Packs, 200A / 350A

Insulated flexible copper busbars for connecting your battery pack to the rest of the system. Use them anywhere a cable with two lugs would go: pack terminals to a fuse or breaker, shunt to BMS, BMS to bus bar, battery to inverter, or between battery boxes and modules. They are not meant for cell-to-cell series connections inside the pack.

Compared to cable, there are no lugs to crimp. The bar is punched and bolted directly, it bends and twists by hand to fit tight layouts, and it takes less room than the equivalent wire. The tinned copper resists corrosion and the halogen-free insulation is rated to 1500 VDC.

Each piece is cut and punched to order from nVent ERIFLEX Flexibar Advanced.

Specifications

• 200A version
  • 125A continuous, 200A max
  • Conductor: 2 layers, 15.5 x 0.8 mm (24.8 mm², 49 kcmil, between 4 and 3 AWG)
  • 1/4 in mounting holes
• 350A version
  • 250A continuous, 350A max
  • Conductor: 2 layers, 24 x 1 mm (48 mm², 95 kcmil, between 1 AWG and 1/0)
  • 5/16 in mounting holes
• Lengths: 2 to 12 in, measured hole center to hole center. Overall length is 1 in longer (0.5 in past each hole).

Technical details

• Conductor: electrolytic tinned copper (Cu-ETP)
• Insulation: TPE, low smoke, halogen-free, flame retardant
• Self-extinguishing: UL 94 V0
• Insulation elongation: 500%
• Dielectric strength: 20 kV/mm
• Nominal voltage: 1000 VAC / 1500 VDC (IEC/UL)
• Temperature range: -50°C to +115°C
• Typical thickness: 1.8 mm

Custom orders

Need a length that isn't listed, a different hole size, or more than two holes? Send us a message with what you need and we will quote it.

Contact us for your custom order