The Pfannenberg PWS 7702 400V 3~ 7035 Air/Water Heat Exchanger is a high-performance industrial cooling solution designed to provide efficient thermal management for large electrical enclosures, control cabinets and automation systems. As part of the advanced Pfannenberg PWS air/water heat exchanger series, it transfers enclosure heat to an external water circuit, allowing cabinets to remain sealed while maintaining reliable operating temperatures.
This powerful heat exchanger is designed for demanding industrial applications where high cooling capacity and protection against environmental influences are required. The PWS 7702 series features integrated temperature control, monitoring functions and a robust construction suitable for machine building, process equipment and industrial automation systems.
With a 400 V AC three-phase supply, approximately 7000 W cooling capacity, IP55 protection rating and a robust cabinet-mounted design measuring 1800 × 460 × 310 mm, the Pfannenberg PWS 7702 is ideal for cooling large electrical enclosures in demanding industrial environments.
Key Advantages
High-performance air/water heat exchanger for industrial enclosure cooling.
7000 W cooling capacity for demanding thermal management applications.
400 V AC three-phase operation for industrial power systems.
IP55 protection rating helps protect electrical enclosures from dust and moisture.
Closed-loop cooling design keeps contaminated ambient air outside the cabinet.
Integrated temperature control and monitoring functions simplify operation.
Key Features
Pfannenberg PWS air/water heat exchanger series.
400 V AC 3-phase rated supply voltage.
7000 W cooling capacity at 500 l/h W10/A35 conditions.
IP55 enclosure protection towards the electrical enclosure.
RAL 7035 light grey housing finish.
Integrated thermostat and solenoid valve for temperature control.
Integrated temperature monitoring with alarm contact.
Maintenance-friendly mounting design.
Advanced Cooling for Industrial Control Cabinets
Air/water heat exchangers such as the Pfannenberg PWS 7702 provide efficient enclosure cooling by transferring heat from the internal cabinet air circuit into an external water cooling system. This allows electrical cabinets to maintain a sealed construction while protecting critical components from overheating.
The PWS 7702 is designed for industrial applications requiring high cooling performance, reliable temperature regulation and long-term protection of automation equipment in demanding operating environments.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...