
Products
National Standard DC Single Gun Onboard Insulation Main Control Board

Product Overview
SDEE-DC-GB1JY is the main control board for our company's self-developed DC charging series. It features an integrated insulation detection circuit and offers simple wiring. Primarily used in GB-standard single-gun DC chargers, wall-mounted compact DC units, and mobile storage-integrated charging stations.
Supports Ethernet, 4G, Bluetooth, and Wi-Fi connectivity;
Supports multiple screen sizes (typical 4.3/7/10 inches) and customizable UI.
Supports multiple charging modes including VIN-based, plug-and-charge, password, scheduled, and QR code charging.
Built-in insulation monitoring and vehicle-side voltage detection circuitry;
Onboard charging cable electronic lock driver circuit with automatic unlock on power loss;
Supports integration with the Shoudian DLB system, EMS system, or Storage-Charging system.
Compatible with mainstream platforms; supports dual-platform deployment, remote operations, and free upgrades.
Specifications
| Power | 15kW~600kW |
| Input Voltage | 12V |
| Input Current | ≥1A |
| Card Reader Interface | 1-port 232 interface supports first-power protocol/custom protocol; debug port reuse |
| Display Interface | 1-channel 232 interface supports 4.3-inch/7-inch/10-inch color touchscreen display |
| Indicator LED Interface | 1 group drivers: support constant-on, running light, and SOC light |
| DI digital input interface | 4 open input interface |
| DO has been issued with an interface. | 4 port open interface |
| CC1 Sampling Interface | 1-channel CC1 analog sampling interface |
| Electronic Lock Control Interface | 1-channel pulse drive, supports power-loss unlocking |
| Gun temperature sampling interface | 2 channels support PT1000 sensors for real-time charging gun temperature monitoring. |
| Electric meter communication interface | 1-port 485 interface, supporting DL/T645-2007 protocol |
| Network Communication Interface | Scalable Ethernet / 4G / Bluetooth / Wi-Fi |
| Onboard CAN interface | 2 CAN interfaces: one connected to the power module, the other to the gun BMS. |
| Operating Temperature | -20°C ~ 65°C |
| Operating Temperature | -40°C ~ 85°C |
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