An automatic fire extinguishing system for electrical cabinets is a specialized fire protection solution designed to detect and suppress fire hazards within electrical panels, control cabinets, switchgear, server racks, MCC panels, and other enclosed electrical equipment. The system continuously monitors the cabinet environment using heat-sensitive detection tubing, smoke detectors, or thermal sensors capable of identifying abnormal temperature rise or ignition at an early stage. Upon detection of fire, the system automatically activates and releases a clean extinguishing agent such as FK-5-1-12, FM-200, CO₂, or aerosol suppressant directly inside the enclosure, rapidly suppressing flames without causing damage to sensitive electrical and electronic components. The extinguishing mechanism is designed for fast response, minimizing equipment downtime, preventing fire spread, and ensuring personnel safety. The system typically includes a storage cylinder, detection and discharge network, control panel, alarm indication, manual release arrangement, and safety interlocks. It is suitable for industrial plants, substations, data centers, commercial buildings, and critical infrastructure where uninterrupted operation of electrical systems is essential. The complete system is manufactured and installed in accordance with applicable international fire safety standards such as NFPA and IEC requirements.