SlimKool Series (Narrow Width) SP43NEMA 4 or 4X Air Conditioners

The SlimKool Series SP43NEMA air conditioners deliver efficient, reliable cooling for NEMA 4 and 4X electrical enclosures with a compact, slim mounting footprint designed to fit space-constrained installations. These units feature a closed-loop cooling system that isolates the enclosure interior airflow from ambient conditions, ensuring that sensitive components remain in a cool, dehumidified environment protected from external contamination. A built-in condensate evaporator eliminates the need for manual drainage under normal operating conditions, with an overflow drain fitting and hose included for added peace of mind in high-humidity applications.

All SlimKool models operate with environmentally responsible CFC-free R134a refrigerant and incorporate a compressor short cycle protector that extends compressor life by preventing frequent restarts caused by low heat loads, fluctuating conditions, or power interruptions. This protection is particularly valuable in installations subject to solar gain or where higher-capacity units are specified to accommodate future equipment additions. Condenser impeller cycling control optimizes energy efficiency, while programmable thermostat and temperature alarm functions provide precise temperature management and early-warning notifications when intervention is needed.

Construction standards ensure durability in demanding environments. The units feature a heavy-duty steel shell with ANSI 61 gray polyester powder coating, fully gasketed for tight, leakproof installation that maintains NEMA Type 4 enclosure ratings. Epoxy-coated condenser and evaporator coils withstand 1000 hours of salt spray testing per ASTM B117, with stainless steel cabinets and internal corrosion protection available on NEMA 4X models for applications in severely corrosive or hostile environments. All units include multi-layer corrugated aluminum filters to keep internal components clean, with replacements readily available. UL/CUL Listed for regulatory compliance and installed base confidence.