Guardian DP53 NEMA 12, 3R & 4Air-Cooled Panel-Mounted Air Conditioners

The Guardian DP53 is a panel-mounted air conditioner designed to maintain precise temperature control within industrial electrical enclosures while meeting stringent environmental and safety standards. Available in 208/230/220 and 480 Volt models, this unit delivers flexible power options for diverse facility installations. All models are UL/CUL Listed and CE Compliant, with Zero ODP refrigerant R410a ensuring compliance with modern environmental regulations.

Constructed from heavy-duty steel with a durable baked powder finish in ANSI 61 gray, the Guardian DP53 resists corrosion and presents a professional appearance; custom color options are available upon request. The enclosure maintains NEMA 12, 3R, and 4 ratings with full gasket sealing for leakproof installation, protecting sensitive electrical components from dust, moisture, and external contaminants. The closed-loop cooling system isolates the interior airflow from ambient air, ensuring that only clean, dehumidified air reaches critical components. Epoxy-coated condenser and evaporator coils provide robust corrosion resistance, withstanding 1000 hours of salt spray testing per ASTM B 117, making this unit suitable for challenging operational environments.

The Guardian DP53 incorporates intelligent protective features that enhance reliability and extend equipment life. A compressor short cycle protector prevents damage from frequent restarts caused by low heat loads, power interruptions, or fluctuating internal temperatures, thereby prolonging compressor longevity. A condenser blower controller optimizes cooling efficiency, while programmable thermostat and temperature alarm functions allow operators to maintain precise climate control and receive early alerts if conditions deviate from set parameters. Multi-layer aluminum filters with non-drying adhesive coating trap particulate matter and are reusable after washing and recoating. The 480 Volt models feature an external junction box for permanent wiring connections, and all units include a minimum six-foot three-wire power cord for straightforward installation.