Product Parameters
- Model Number: BL20400
- Input Voltage: 3 x 400 VAC (Three-Phase)
- Input Frequency: 45 – 65 Hz
- Output Voltage: 24 VDC (Nominal)
- Output Current: 40 A
- Charging Characteristic: IUoU curve (DIN 41773 compatible)
- Efficiency: > 90%
- Operating Temperature: -25°C to +70°C
Product Description
The Woodward BL20400 is a high-efficiency, three-phase industrial battery charger designed for professional power management in demanding environments. It is specifically engineered to maintain and charge lead-acid batteries used in engine starting and standby power systems. The unit features a switch-mode power supply design, providing a stabilized output voltage with low ripple. Its robust construction ensures reliable operation under extreme temperature fluctuations and high vibration, making it a critical component for ensuring the readiness of emergency power systems.
Application Fields
This battery charger is primarily utilized in power generation plants, heavy-duty marine vessels, and industrial emergency backup systems. It is commonly integrated with diesel and gas engine control systems to ensure that starter batteries remain at optimal charge levels. Its three-phase input makes it ideal for large-scale facilities where balanced load distribution across the AC mains is required.
Product Specifications
- Weight: 3.20 kg
- Dimensions: 240 mm x 125 mm x 140 mm
- Origin: Germany
Operational Precautions
- Ensure the three-phase 400 VAC input is protected by appropriately rated circuit breakers before energizing the unit.
- Maintain a minimum clearance of 50mm around the ventilation slots to prevent thermal cutout during high-current charging cycles.
- Verify that the battery chemistry and voltage (24V) match the charger’s output specifications to prevent battery gassing or thermal runaway.
- Periodically check the DC output terminals for tightness, as thermal expansion and vibration in engine rooms can lead to loose connections.
Recommended Similar Product Models
| Model Number | Series | Output Rating | Input Voltage |
|---|---|---|---|
| BL24125 | BL Series | 24 VDC / 25 A | 3 x 400 VAC |
| BL24120 | BL Series | 24 VDC / 20 A | 1 x 230 VAC |
| GCP-31 | Woodward | Controller/Charger | Integrated System |
| SPM-D11 | Woodward | Synchronizer | System Component |
| BL12120 | BL Series | 12 VDC / 20 A | 1 x 230 VAC |
