J1772 Receptacle

The J1772 connector is designed with five essential pins, each playing a specific role in the charging process:

Ground (GND): Provides a direct grounding path to ensure safe operation and prevent electrical faults.
Proximity Pilot (PP): Detects the presence of a connected EV and prevents drive-off events during charging. It also helps identify the current-carrying capacity of the cable.
Control Pilot (CP): Facilitates two-way communication between the EV and the charging station to manage charging status, signal readiness, and enable safe power delivery.
AC Line 1 (L1) and AC Line 2 (L2): These supply the alternating current (AC) used to charge the EV battery at Level 2 speeds.

Together, these components manage power delivery, enforce safety protocols, and ensure dynamic communication throughout the charging session. The CP and PP signals are particularly important for real-time negotiation of charging current and coordination with onboard vehicle systems.

Technical Specifications of the J1772

J1772 connectors support Level 1 and Level 2 charging, with the following technical specifications:

Voltage: 120V (Level 1) or 208–240V (Level 2)
Current: Up to 80 amps (most stations deliver 30–40 amps)
Charging Power: Up to 19.2 kW depending on the station and vehicle capability
Charging Time: Typically 4–10 hours for a full charge, depending on battery size and charger amperage.

 Level 2 charging, enabled by the J1772 plug, is approximately 5 to 7 times faster than standard Level 1 (household outlet) charging.

Specifications 

Rated current: 32A 
Operating voltage: 240V
AC Insulation resistance: > 1000M Q (DC500V)
Contact resistance: O. 5 mQ
Max Withstand voltage: 2000V
Plastic shell fire rating: UL94 V-0 Coupled insertion force: 45N