Pfannenberg Cooling Unit UL listed DTS 3281 460V SC N4X VAHDTS 3281 460V 60Hz SC N4X VA

Why Choose the Pfannenberg DTS 3281 460V SC N4X VA Cooling Unit?

The Pfannenberg DTS 3281 460V SC N4X VA, article number 13385736158, is a powerful side-mounted enclosure cooling unit designed to provide reliable closed-loop climate control for electrical and industrial control cabinets. As part of the robust Pfannenberg DTS 32X1 cooling unit series, it combines effective heat removal with stainless steel construction and NEMA Type 4/4X enclosure protection for demanding industrial and wash-down applications.

The DTS 3281 uses separate internal and external air circuits to help prevent contaminants in the surrounding environment from entering the electrical enclosure. Its stainless steel construction, integrated condensate evaporation system and large condenser fin spacing make it particularly suitable for challenging environments where dependable cooling and resistance to contamination are important.

With a cooling capacity of 1900 W at A35/A35 and a three-phase 400/460 V AC, 50/60 Hz supply, the DTS 3281 provides effective thermal management for industrial control systems with substantial internal heat loads. The standard controller provides an adjustable temperature control range of +25 to +45 °C, while its side-mounted format enables straightforward integration with electrical enclosures.

Key Advantages

• Powerful 1900 W cooling capacity at A35/A35 for industrial enclosure cooling.
• Three-phase 400/460 V AC, 50/60 Hz supply for industrial power systems.
• NEMA Type 4/4X protection towards the electrical enclosure when correctly installed.
• 304 stainless steel housing and cover suitable for demanding and wash-down environments.
• Closed-loop cooling design helps isolate sensitive enclosure components from external contaminants.
• Integrated active condensate evaporation with safety overflow improves operational reliability.
• Large condenser fin spacing supports extended maintenance intervals in contaminated environments.
• Side-mounted design provides effective cooling while maintaining valuable internal cabinet space.

Key Features

• Pfannenberg DTS 3281 side-mounted cooling unit.
• 1900 W cooling capacity at A35/A35 conditions.
• 1758 W cooling capacity at A35/A50 conditions.
• Three-phase 400/460 V AC rated supply with ±10% voltage tolerance.
• 50/60 Hz operating frequency.
• 1400 W power consumption at A35/A35 conditions.
• 2.6 A nominal running current for the 400/460 V version.
• Adjustable standard controller with a +25 to +45 °C control range.
• +35 °C factory-set control temperature.
• 0 to +55 °C ambient operating range.
• Integrated active condensate evaporation system with safety overflow.
• R134a refrigerant.
• NEMA Type 4/4X protection towards the enclosure when properly installed.
• Robust 304 stainless steel construction.
• High-airflow backward-curved impeller fan design.
• Integrated thermal overload protection.

Reliable Closed-Loop Cooling for Industrial Enclosures

Enclosure cooling units such as the Pfannenberg DTS 3281 remove heat generated by drives, PLCs, power supplies and other electrical components while maintaining separation between conditioned enclosure air and the external environment. This closed-loop approach helps prevent dust, moisture and other airborne contaminants from entering the cabinet while maintaining suitable operating temperatures for sensitive equipment.

The DTS 3281 is engineered for demanding industrial environments where both effective heat removal and robust enclosure protection are required. Its stainless steel construction and NEMA Type 4/4X design make it particularly suitable for wash-down applications, process industries and installations where equipment can be exposed to moisture or contamination.

Typical Applications

• Industrial electrical and automation control cabinets.
• Wash-down production environments.
• Food and beverage processing equipment.
• PLC, drive and motor control enclosures.
• Process control and manufacturing systems.
• Material handling and production machinery.
• Electrical cabinets in contaminated or humid industrial environments.
• OEM machinery and industrial automation systems.