Slimkool Series SP28 480 Volt 3-PhaseNEMA 4 or 4X Legacy Air Conditioners

The Slimkool Series SP28 is a 480 Volt, 3-phase NEMA 4 or 4X legacy air conditioning unit designed to maintain optimal operating temperatures in industrial electrical enclosures while protecting sensitive components from heat and humidity. This compact, slim-profile system delivers efficient closed-loop cooling that completely isolates the enclosure's internal environment from ambient air and water systems, ensuring that cool, dehumidified air reaches critical equipment without contamination from external conditions.

The unit incorporates a built-in condensate evaporator that eliminates the need for manual drainage under normal operating conditions, significantly reducing maintenance requirements and potential water management complications. CFC-free R134a refrigerant delivers reliable cooling performance while meeting environmental standards. The compressor short cycle protector safeguards against damage from frequent starts and power interruptions, extending compressor life and reducing operational costs--a critical feature in installations subject to solar gain or fluctuating internal heat loads. Condenser impeller cycling control optimizes energy efficiency by modulating fan speed based on actual cooling demand. Multi-layer aluminum grid filters keep internal components clean and are readily available as replacements through Kooltronic's online spare parts catalog.

Designed for hostile and corrosive environments, NEMA 4X models feature stainless steel construction and internal corrosion protection on refrigeration system brazed joints, both capable of withstanding 1000 hours of salt spray testing per ASTM B 117. All units maintain full NEMA Type 4 gasket sealing for leakproof installation and include epoxy-coated condenser and evaporator coils for additional durability. Control features include phase sequence and phase loss detection, under-voltage monitoring, a programmable thermostat for precise temperature management, and a programmable temperature alarm for proactive alerts. The unit is UL/CUL Listed and backed by comprehensive corrosive environment considerations available directly from the factory.