Product Description
Baker BA A27788-11 is an OEM rectifier assembly for electric lift truck power systems, rated 300A at 200VDC, featuring silicon solid-state design with integral aluminum heatsink and compatibility with multiple legacy and current Baker models. Includes validated cross-reference and superseded part numbers for critical service and replacement applications.
Specifications
Electrical
| Rectifier Configuration | Rectifier Assembly (4-rectifier design, suitable for 4-diode applications in DC motor circuits) |
| Current Rating | 300 Amperes (nominal assembly rating) |
| Voltage Rating | 200 Volts DC (nominal pulse output) |
Part Numbers
| OEM Part Number | BA A27788-11 |
| Cross-Reference Part Numbers | 998520, 79816, 271912, 4910566, 377232, 5169138-06, 111995, 279809, 4910567, 3C7422, 3000525, 74878269, 74910566, 74910567, 259A9208PXCR |
| Replaces/Supersedes Part Numbers | BA A27788-10, BA A27788-4 |
| Compatible Models | Baker electric lift truck Model 364 and additional legacy models utilizing rectifier assembly BA A27788-11 |
Frequently Asked Questions
Q: What are the electrical specifications of the BA A27788-11 rectifier assembly?
A: The BA A27788-11 is rated at 300A nominal current and 200VDC. It uses a silicon solid-state design with integral aluminum heatsink for efficient heat dissipation, making it suitable for sustained high-current applications in Baker electric lift systems.
Q: Which part numbers does the BA A27788-11 replace or supersede?
A: The BA A27788-11 supersedes and replaces the BA A27788-10 and BA A27788-4. This newer generation rectifier assembly maintains 300A rated current capability while offering improved silicon solid-state technology and is compatible with both legacy and current Baker electric lift models.
Q: What are the cross-reference part numbers for the BA A27788-11?
A: The BA A27788-11 has multiple cross-reference and superseded numbers: 998520, 79816, 271912, 4910566, 377232, 5169138-06, 111995, 279809, 4910567, 3C7422, 3000525, 74878269, 74910566, 74910567, 259A9208PXCR. These numbers help identify compatible rectifier assemblies across different Baker equipment generations.
Q: What is the design advantage of the BA A27788-11 over earlier rectifier models?
A: The BA A27788-11 features silicon solid-state design with an integral aluminum heatsink, providing superior heat management and reliability compared to earlier 4-diode configurations. This design enhances thermal performance in high-demand power applications for electric lift trucks.
Q: Can I use the BA A27788-11 as a direct replacement for the BA A27788-10?
A: Yes, the BA A27788-11 is designed to replace the BA A27788-10. However, verify equipment age and model compatibility before installation, as the newer silicon design may have different mounting or integration requirements depending on your specific Baker lift truck generation.
Q: What maintenance considerations apply to the BA A27788-11 rectifier assembly?
A: The BA A27788-11 integral aluminum heatsink requires periodic inspection to ensure proper airflow and heat dissipation. Keep the assembly free of debris and moisture, and verify electrical connections remain tight. Silicon solid-state rectifiers typically have extended lifespan compared to older diode configurations when maintained properly.