Product Parameters
- Model Number: BL20400
- Input Voltage: 3 x 400 VAC (Three-Phase)
- Input Frequency Range: 45 Hz to 65 Hz
- Output Voltage: 24 VDC (Nominal)
- Output Current: 40 A (Continuous)
- Efficiency: Typically > 90%
- Charging Characteristic: IUoU (DIN 41773)
- Protection Class: IP20
Product Description
The Woodward BL20400 is a high-performance industrial battery charger engineered for the demanding requirements of engine starting and standby power systems. Utilizing advanced switch-mode technology, it provides a highly stabilized DC output with minimal ripple, ensuring the longevity and reliability of lead-acid batteries. The unit is designed for three-phase power systems, allowing for a balanced load on the AC mains. Its ruggedized internal components are built to withstand high vibration and significant temperature fluctuations, maintaining consistent performance in harsh industrial environments.
Application Fields
This charger is widely deployed in power generation facilities, offshore oil and gas platforms, and maritime engine rooms. It is primarily used to maintain the readiness of starter batteries for diesel and gas engines, as well as providing reliable DC power for emergency backup systems and uninterruptible power supplies (UPS) in critical infrastructure.
Product Specifications
- Weight: 3.25 kg
- Dimensions: 240 mm x 125 mm x 140 mm
- Origin: Germany
Operational Precautions
- Verify that the AC input voltage matches the 3 x 400 VAC rating before energizing to prevent internal component damage.
- Ensure adequate ventilation and clearance around the cooling fins to prevent thermal de-rating or automatic shutdown during high-current charging.
- Always check battery polarity and voltage compatibility; connecting to a 12V system or reversing polarity can cause catastrophic battery failure.
- Tighten all terminal connections to the specified torque settings to prevent localized heating and potential fire hazards caused by loose wiring.
Recommended Similar Product Models
| Model Number | Series | Main Function | Input Type |
| BL24125 | BL Series | 24 VDC / 25 A Charger | 3 x 400 VAC |
| BL24120 | BL Series | 24 VDC / 20 A Charger | 1 x 230 VAC |
| GCP-31 | Woodward | Genset Control & Charging | Integrated Unit |
| BL12120 | BL Series | 12 VDC / 20 A Charger | 1 x 230 VAC |
| SPM-D11 | Woodward | Synchronizer / Management | System Component |
