HIMA K9203A 996920360 | Rack cooling fan

1. Model Attribution and Functional Positioning

• Series Positioning:
  It belongs to HIMA's cabinet cooling accessory series, primarily designed to fit HIMA's safety control systems (such as H41q, H51q series safety PLCs) and industrial control cabinets. The prefix "K9203A" typically denotes a high-reliability fan unit in this series, engineered for industrial-grade high-temperature and high-dust environments to maintain stable operating temperatures for control equipment during continuous operation.
• Core Function:
  As an active cooling component, its main role is to expel heat generated by components (e.g., CPU modules, power supply modules) inside the cabinet through forced air circulation, keeping the internal temperature within a safe threshold (usually ≤40°C). This prevents system downtime or performance degradation due to overheating. Additionally, it integrates status monitoring functionality to provide real-time feedback on fan operation to the upper-level control system.

2. Technical Parameters and Hardware Features

Key Technical Parameters

Hardware Features

• Equipped with status indicators (e.g., green for normal operation, red for fault) to visually display fan status;
• Integrates fault alarm output (dry contact signal) that can be connected to the PLC's DI module for remote alarm triggering;
• Fans use long-life bearings (expected lifespan ≥62,500 hours @40°C) to reduce maintenance frequency;
• Housing made of galvanized steel for corrosion and vibration resistance (compliant with IEC 60068-2-6 vibration standards).

3. Application Scenarios

• Safety Control System Cabinets: Mainly used in HIMA H41q/H51q safety PLC cabinets to cool safety logic controllers and I/O modules, ensuring reliable operation of SIS in critical fields such as chemical, petroleum, and nuclear power industries.
• Industrial Automation Cabinets: Compatible with control equipment from other brands (e.g., DCS systems, frequency converter cabinets), especially suitable for high-temperature production sites (e.g., metallurgical workshops, power stations).

4. Differences from Similar Products

• Compared to ordinary commercial fans, K9203A 996920360 features industrial-grade redundant design (multi-fan backup) and wide-temperature operation capability, making it more suitable for unmanned critical industrial scenarios;
• Compared to HIMA's basic fan models (e.g., K9203), this model offers superior airflow (≥300m³/h) and lower sound pressure level (≤55dB(A)), providing higher cooling efficiency with reduced noise.

5. Notes

• Installation Requirements: Must be aligned with the cabinet's air duct to avoid blocking air inlets/outlets; fan direction must be correct (airflow direction is usually marked);
• Compatibility: Preferentially fits HIMA's standard cabinets but can also be used with third-party 19-inch cabinets (verify mounting hole alignment);
• Documentation Access: Detailed datasheets can be obtained through HIMA's official website or authorized distributors, including wiring diagrams and installation guides.