NVENT HOFFMAN PWS7102R5 Air/ water heat exchanger

Why Choose the nVent HOFFMAN PWS7102R5 Air/Water Heat Exchanger?

The nVent HOFFMAN PWS7102R5 is a compact and efficient air/water heat exchanger designed for vertical installation on electrical enclosures where dependable cooling is required in dusty or high-temperature industrial environments. As part of the nVent HOFFMAN PWS Series, it removes heat using a water circuit while keeping the enclosure air isolated from the surrounding atmosphere.

The PWS7102R5 provides a cooling capacity of 950 W at W10/A35 conditions with a water flow of 200 l/h. Its closed-loop cooling principle helps prevent dust and airborne contamination from entering the electrical enclosure, while IP55 protection towards the enclosure supports reliable operation in demanding industrial applications.

With dimensions of 500 mm high × 200 mm wide × 150 mm deep, a 230 V AC 50/60 Hz supply and an unimpeded airflow of 570 m³/h, the PWS7102R5 delivers effective thermal management in a compact format. An integrated thermostat, solenoid valve and temperature alarm contact provide automatic cooling control and system monitoring.

Key Advantages

• Efficient 950 W air/water cooling capacity at W10/A35 conditions.
• Closed-loop cooling helps isolate enclosure equipment from dusty ambient air.
• IP55 protection towards the electrical enclosure.
• Integrated adjustable thermostat and solenoid valve for automatic temperature regulation.
• Temperature monitoring with alarm contact for enhanced system supervision.
• Compact 500 × 200 × 150 mm format for vertical enclosure mounting.

Key Features

• nVent HOFFMAN PWS Series air/water heat exchanger.
• 950 W cooling capacity at 200 l/h, W10/A35.
• 230 V AC, 50/60 Hz operating voltage.
• 570 m³/h unimpeded airflow.
• IP55 enclosure protection.
• Integrated thermostat adjustable from 8 °C to 50 °C.
• Factory thermostat setting of 35 °C.
• Integrated solenoid valve for water flow control.
• Temperature alarm contact for monitoring.
• Maximum permissible operating pressure of 10 bar.
• Water inlet temperature range of 1 °C to 35 °C.
• Heat exchanger constructed from copper pipe with aluminium fins.

Reliable Closed-Loop Cooling for Industrial Enclosures

Air/water heat exchangers remove heat from electrical enclosures by transferring thermal energy from the internal air circuit to a separate water circuit. Because the internal enclosure air remains isolated from the surrounding environment, dust and contamination have minimal influence on the cooling process, making this technology particularly effective in harsh industrial locations.

The nVent HOFFMAN PWS Series is designed for applications where reliable cooling is required without introducing external air into the enclosure. The PWS7102R5 combines compact dimensions, 950 W cooling capacity, automatic thermostat control and water flow regulation to help protect PLCs, drives, power electronics and other heat-generating equipment.

Typical Applications

• Industrial electrical control cabinets.
• PLC and automation enclosures.
• Variable speed drive and power electronics cabinets.
• Machine control systems in dusty environments.
• Manufacturing and process automation equipment.
• Electrical enclosures exposed to elevated ambient temperatures.
• Applications with an available chilled-water supply.