HV DC Bus Poles

In Simple Terms

The energy store (battery) in an F1 car must have exactly two connection points to the main power system: a positive pole and a negative pole. All other electrical components that need power from the battery must connect through only these two poles, not directly to the battery.

• The Energy Store (ES/battery) has only two poles: ES HV DC+ (positive) and ES HV DC- (negative)
• All components including the Control Unit, DC-DC converter, and other power unit parts must connect exclusively through these two poles
• This standardization ensures consistent electrical architecture and safety across all F1 power units
• Direct connections to the HV DC bus bypassing these poles are prohibited