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Side view of 3kW OBC and 1kW auxiliary converter 2-in-1 module featuring orange high-voltage connectors
3.3KW+1。5
3.3KW+1
Top view of compact 3.3kW EV on-board charger featuring central cooling fan and mounting tabs
Front panel of 3kW OBC and 1kW auxiliary converter 2-in-1 combo unit with CAN bus port and connectors
3kW OBC and 1kW auxiliary converter 2-in-1 combo unit equipped with forced air cooling fan
Integrated OBC+DC-DC 2-in-1

3.3KW OBC+1.5KW DC/DC Converter 2-in-1

Designed for 320V high-voltage EV platforms, this 2-in-1 solution integrates a 3.3kW onboard charger and 1.5kW DC-DC converter into one compact unit. It helps electric vehicle manufacturers simplify wiring, save installation space and improve overall power system integration.

3.3kW OBC+1.5kW DC-DC Converter 2-in-1

Product Description

The 3.3kW OBC + 1.5kW DC-DC Converter is an integrated power solution designed for 320V commercial electric vehicle platforms.

Need a detailed technical datasheet?
Contact Echelon Energy Team to receive the full specifications.

72V, 96V Available. 

Combining onboard charging and high-power DC-DC conversion into one compact unit, this 2-in-1 solution helps EV manufacturers simplify vehicle electrical systems, reduce installation space and improve overall power integration.
With CAN-bus communication and comprehensive protection functions, it is suitable for electric commercial vehicles, utility vehicles, agricultural EVs and other high-voltage EV applications.



Key Features

Integrated OBC + DC-DC Design

Combines AC battery charging and DC voltage conversion functions into one compact enclosure, reducing wiring complexity and simplifying EV system integration.

320V Battery Platform

Designed for high-voltage electric vehicle platforms with a 320Vdc battery system.

High-Power DC-DC Conversion

Provides up to 1.5kW rated DC-DC output power for vehicle auxiliary systems.

High Efficiency Performance

  • OBC Maximum Efficiency: ≥94%
  • DC-DC Maximum Efficiency: ≥94%

CAN-bus Communication

Supports CAN Bus communication for vehicle control system integration.

Reliable Protection Functions

Integrated protection functions include:
  • Input Over Voltage Protection
  • Input Under Voltage Protection
  • Output Over Voltage Protection
  • Output Under Voltage Protection
  • Over Current Protection
  • Short Circuit Protection
  • Over Temperature Protection



Technical Specifications

On-Board Charger (OBC)

General Information

  • Model: OD-CC-3D1F-320Y
  • Battery Voltage Platform: 320Vdc
  • Cooling Method: Forced Air Cooling
  • Weight: ≤6kg

Input

  • Input Voltage: 90-264Vac
  • Input Frequency: 47-63Hz
  • Input Current: 0-16A
  • Power Factor: ≥0.98 (Above half load)
  • Standby Power Consumption: ≤5W

Output

  • Output Voltage: 195-450Vdc
  • Output Current: 0-12A
  • Output Power:
  • 3300W @ 220Vac
  • 1650W @ 110Vac
Performance:
  • Constant Voltage Accuracy: ±1%
  • Constant Current Accuracy: ±2%
  • Maximum Efficiency: ≥94%



DC-DC Converter

Input

  • Input Voltage: 195-450Vdc
  • Input Current: 0-10A

Output

  • Output Voltage: 9-16Vdc
  • Rated Output Current: 110A
  • Peak Current: 132A
  • Rated Power: 1500W
  • Peak Power: 1800W (6 minutes)
Performance:
  • Voltage Adjustment Rate: ≤1%
  • Load Adjustment Rate: ≤1%
  • Voltage Control Accuracy: ≤1%
  • Current Control Accuracy: ≤2%
  • Maximum Efficiency: ≥94%



Protection & Safety

OBC Protection

  • Input Under Voltage Protection: 90±5Vac
  • Input Over Voltage Protection: 264±5Vac
  • Output Under Voltage Protection: ≤190Vdc
  • Output Over Voltage Protection: ≥455Vdc
  • Over Current Protection
  • Short Circuit Protection
  • Over Temperature Protection
Temperature protection:
  • Power reduction at 85℃
  • Shutdown at 90℃



DC-DC Protection

  • Input Under Voltage Protection: ≤190Vdc
  • Input Over Voltage Protection: ≥455Vdc
  • Output Under Voltage Protection
  • Output Over Voltage Protection
  • Over Current Protection (>132A)
  • Short Circuit Protection
  • Over Temperature Protection
Temperature protection:
  • Power reduction at 90℃
  • Shutdown at 105℃
  • Automatic recovery after temperature decreases



Communication & Integration

  • CAN Bus Communication
  • High Voltage Interlock (HVIL)
  • Charging Connection Confirmation (CC)
  • Charging Connection Guide (CP)
  • Wake-up Signal



Typical Applications

  • Electric Commercial Vehicles
  • High-voltage EV Platforms
  • Utility Vehicles
  • Agricultural EVs
  • Special Purpose Electric Vehicles



Why Choose Our Integrated Power Solution?

For high-voltage commercial EV platforms, integrating OBC and DC-DC functions into one unit helps reduce system complexity and optimize vehicle space.
The 320V 3.3kW OBC + 1.5kW DC-DC integrated solution provides efficient charging and stable auxiliary power supply for modern electric vehicle applications.

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EV POWER SOLUTIONS

Contact Nancy at Echelon

Contact Echelon Energy for product updates, technical support and EV project discussions. Custom EV Charger Manufacturer & OEM/ODM Supplier in China

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