Product Description
FD4-MB301 (Part code HCCA34453A) is the CPU main board for Metron Eledyne FD4 fire pump controller, hardware revision Rev.04. It is the core control board of fire pump system, responsible for logic operation, pump start/stop sequence control, fault acquisition, event logging and alarm management. It supports Modbus RTU communication to upload pump running status, alarms and historical event logs to supervisory control system. This board is supplied without memory card and must work with FD4 series backplane, I/O modules and power supply board. It is widely used as spare part in fire pump control cabinets for marine, industrial and commercial buildings. This part is discontinued by OEM. Available stock mainly includes used and refurbished units. Verify firmware version and program configuration before replacement, it is not a direct drop-in replacement.
Specifications
- Part No.: FD4-MB301
- Board code: HCCA34453A
- Brand: Metron Eledyne
- Type: FD4 Fire Pump Controller CPU Main Board
- Hardware Revision: Rev.04
- Communication: Modbus RTU
- Functions: Pump start-stop logic, fault diagnosis, historical event log, alarm management
- Note: Memory card not included, sold separately
- Power supply: Powered by FD4 rack backplane
- Protection class: IP20 (cabinet mounted)
- Operating temperature: 0℃ ~ +55℃
- Weight: Approx. 450 g
- OEM Status: Discontinued
- Note: No public full datasheet. Matching backplane, I/O and power modules required. ESD sensitive component.
Applications
- Metron Eledyne FD4 automatic fire pump controller system
- Fire protection systems for vessels and offshore platforms
- Fire water control for factories, commercial buildings and warehouses
- Remote monitoring, alarm transmission and fault history review of fire pumps
- Overhaul, spare replacement and maintenance of legacy fire control cabinets
Series Part Numbers
FD4-MB201, FD4-MB401, HCCA34209A, FD4e CPU boards








There are no reviews yet.