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HV Interlock Connector EV

High Voltage Interlock (HVIL) connectors create a low-voltage safety loop that detects if any HV connector in an EV is disconnected. Opening the loop immediately disables HV power to prevent electrocution during service.

// Specifications
Standard
SAE J3109 HVIL
Voltage
12V low voltage signal circuit
Pin Count
2
Function
Safety interlock loop detection
Use Case
EV high voltage battery systems, inverters
Action
Opens = HV system disables immediately
// Pin Reference Table
Pin Name Function Type
1 HVIL+ Interlock loop signal positive I/O
2 HVIL- Interlock loop signal negative I/O