CCS1 vs. Type 1 (J1772)
Comparing 2 standards across 12 specifications. 12 key differences identified.
CCS Combo 1 (standardized under SAE J1772 and IEC 62196-3) combines the upper 5-pin J1772 AC inlet with two large dedicated DC power pins below into a single vehicle inlet. Enabling DC fast-charging up to 350 kW (500A @ 1000V DC) using High-Level Communication (HLC) over HomePlug Green PHY Power Line Communication (PLC).
The SAE J1772 Connector (standardized as IEC 62196 Type 1, commonly called the J-Plug) is the standard single-phase AC charging interface for electric vehicles across North America and Japan. Featuring a 5-pin circular plug layout with an integrated mechanical top latch, it delivers Level 1 (120V / 16A / 1.9 kW) and Level 2 (208–240V / up to 80A / 19.2 kW) power.
Specification Comparison Table
12 Parameters| Parameter / Spec | ||
|---|---|---|
|
Standardization
|
SAE J1772 / IEC 62196-3 (Configuration FF) / ISO 15118 (Plug & Charge) | SAE J1772 / IEC 62196-2 (Type 1) |
|
Signaling / Communication Protocol
|
DIN 70121 / ISO 15118 via HomePlug Green PHY Power Line Communication (PLC) modulated onto Control Pilot pin | 1 kHz Pulse Width Modulation (PWM) square wave on Control Pilot pin (+12V open, +9V EV detected, +6V charging) |
|
Connector Architecture
|
Combo inlet: Upper J1772 socket (uses CP, PP, PE) + Lower 2-pin DC power bus (DC+ and DC-) | — |
|
Maximum DC Charging Rate
|
Up to 500 A continuous (liquid-cooled cables) at 200V to 1000V DC (up to 350 kW to 400 kW peak) | — |
|
Plug & Charge Automated Auth
|
ISO 15118 encrypted PKI certificate exchange handles automated billing without RFID cards or mobile apps | — |
|
DC Contactors
|
Dedicated vehicle high-voltage DC contactors bypass the onboard AC charger to feed battery pack directly | — |
|
Deployments
|
Electrify America, EVgo, Flo (North American DC fast-charging networks for non-Tesla EVs prior to J3400 transition) | — |
|
Pin Count & Configuration
|
— | 5 pins: Line 1 (L1), Neutral/Line 2 (N/L2), Protective Earth (PE), Control Pilot (CP), Proximity Pilot (PP) |
|
AC Phase Support
|
— | Single-phase AC only (120V Level 1 or 208-240V Level 2) |
|
Maximum Current & Power
|
— | Up to 80 A continuous at 240 V AC (19.2 kW theoretical max; typical home EVSE is 32A to 48A / 7.7 to 11.5 kW) |
|
Mechanical Latch
|
— | Spring-loaded thumb release lever with microswitch on Proximity Pilot (terminates current before mechanical disconnect) |
|
Regional Deployment
|
— | Standard AC inlet on non-Tesla EVs in North America (pre-2025) and Japan (Nissan Leaf, Toyota Prius Prime, Chevy Bolt) |