Product Overview
The WSD-DYBH-11A is a high-integration 4-in-1 auxiliary drive integrated power unit combining oil pump, air pump, DC/DC converter, and PDU into a single compact module. It can be expanded to a 6-in-1 system with main drive, delivering higher flexibility for new-energy commercial vehicles, fuel-cell vehicles, and advanced electric platforms.
Its optimized Product Parameters Information ensures high efficiency, robust protection, and reliable operation in demanding environments.
Key Electrical & Mechanical Parameters
Model: WSD-DYBH-11A
Low-voltage auxiliary control power: 18–32 V
DC supply voltage range: 350–750 V
Dimensions: 608 × 381.5 × 289 mm
Ingress protection: IP67 (dustproof & waterproof)
These specifications support long-tail keywords such as IP67 integrated power module and wide-voltage auxiliary drive power supply.
Power Performance & Efficiency
DC/DC rated power: 6 kW
DC/DC peak power: 6.6 kW
DC/AC rated power: 5.5 kW / 7.5 kW
DC/AC peak power: 7.5 kW / 11 kW
Output frequency range: 0–300 Hz
Efficiency (nominal condition): ≥96%
This performance profile enhances visibility for long-tail searches like high-efficiency DC/DC converter for EVs and auxiliary drive power unit with DC/AC output.
Cooling, Control & System Integration
Cooling method: Water cooling (hydrocooling)
Hydrogen reactor power distribution: 2-channel
Control modes:
CAN control
Hard-wire control
CAN / hard-wire switching control
Designed for seamless integration, the unit matches use cases such as fuel cell vehicle auxiliary power system and CAN-controlled integrated drive module.
Advanced DC/AC Protection Functions
The integrated DC/AC system features instant shutdown protection to prevent hardware damage, including:
Over-temperature protection
Overload protection
Phase-to-phase short-circuit protection
Over-current & over-voltage protection
Under-voltage protection
Phase loss protection
Stall protection
Sudden load mutation protection during operation
These safeguards strengthen long-tail relevance for high-reliability auxiliary power electronics and protected integrated drive systems.
| Project | Parameter |
| Model | WSD-DYBH-11A |
| Low-voltage auxiliary control power supply | 18~32 |
| （V)/DC supply voltage range | 350~750 |
| 外形尺寸（mm）/Dimensions | 608*381.5*289 |
| 防护等级/Ingress protection | IP67 |
| （kW）/DC/DC power rating | 6 |
| （kW）/DC/DC peak power | 6.6 |
| （kW）/DC/AC power rating | 5.5&7.5 |
| （kW）/DC/AC peak power | 7.5&11 |
| Output frequency range | 0~300 |
| Efficiency (nominal condition) | ≥96% |
| Cooling method | hydrocooling |
| Hydrogen reactor power distribution | 2-channel |
| Control mode | Meal control, hard wire control, meal/hard line switching control |
| DCAC protection function | Instant shutdown protection functions such as over-temperature, overload, phase-to-phase short circuit, overcurrent, overvoltage, undervoltage, phase loss, stall, load mutation during operation, etc |
