HCCA34210 Metron Fire Pump Controller Model FD4-MB300 Motherboard The HCCA34210 FD4-MB300 Motherboard is a replacement control board designed for Metron FD4 Diesel Fire Pump Controllers. It serves as the main processing unit responsible for controller operation, engine management, alarm monitoring, battery supervision, charger monitoring, event logging, and communication with display units. Manufactured for reliable performance in fire protection applications, this motherboard helps ensure proper functioning of diesel fire pump systems in commercial, industrial, and critical infrastructure facilities. Suitable for maintenance, repair, and replacement requirements, the FD4-MB300 motherboard supports dependable fire pump controller operation and system monitoring. Product Features: Compatible with Metron FD4 Diesel Fire Pump Controllers Model: FD4-MB300 Part Number: HCCA34210 Supports alarm and event monitoring Battery and charger supervision Engine control and system diagnostics Reliable replacement motherboard Suitable for fire protection systems Industrial and commercial applications