Finder 7H.51.8.230.0250 – 7H Series Panel Heaters

Why Choose the Finder 7H.51.8.230.0250 Fan-Assisted Panel Heater?

The Finder 7H.51.8.230.0250 is a 250 W fan-assisted PTC electrical enclosure heater designed to help prevent condensation and maintain suitable operating temperatures inside industrial control cabinets, switchboards and automation enclosures. Part of the Finder 7H Series, this heater combines self-regulating heating technology with forced-air circulation for effective cabinet temperature management.

Operating from a nominal 230 V AC supply, the Finder 7H.51.8.230.0250 uses a Positive Temperature Coefficient (PTC) heating element to generate warmth while automatically adjusting its electrical resistance as the element temperature rises. Its integrated fan distributes heated air throughout the enclosure, helping reduce cold spots and limiting the conditions that encourage moisture condensation.

Designed for installation inside industrial electrical cabinets, this compact heater offers 35 mm DIN rail mounting, an IP20 protection rating and compatibility with suitable external thermostatic controls. The combination of a 250 W heating capacity, integrated fan assistance and self-regulating PTC technology makes it a practical solution for protecting sensitive electrical and electronic equipment.

Key Advantages

• 250 W heating capacity for electrical enclosure temperature management.
• 230 V AC operation suitable for industrial auxiliary power supplies.
• Self-regulating PTC heating technology helps control heat generation.
• Integrated fan promotes effective distribution of warm air throughout the cabinet.
• Helps prevent condensation and moisture accumulation inside electrical enclosures.
• Supports reliable operation of temperature-sensitive electrical and electronic equipment.
• 35 mm DIN rail mounting enables convenient installation.
• IP20 protection suitable for installation inside appropriately protected electrical cabinets.
• Compact construction helps conserve valuable enclosure space.
• Can be combined with a suitable thermostat for automatic temperature control.
• PTC technology provides inherent temperature-dependent resistance regulation.
• Suitable for industrial automation, power distribution and infrastructure applications.

Key Features

• Finder 7H Series electrical enclosure heating product.
• 7H.51 fan-assisted heater configuration.
• 250 W nominal heating power.
• 230 V AC nominal supply voltage.
• 50/60 Hz AC supply compatibility.
• Self-regulating PTC heating element.
• Integrated forced-air fan for improved heat circulation.
• IP20 ingress protection.
• 35 mm DIN rail mounting according to EN 60715.
• Designed for use with compatible external enclosure thermostats.
• Compact industrial cabinet heating arrangement.
• Suitable for condensation prevention and temperature maintenance.

Self-Regulating PTC Heating with Integrated Fan Assistance

The Finder 7H.51.8.230.0250 uses Positive Temperature Coefficient heating technology to provide controlled warmth inside industrial electrical enclosures. As the PTC element increases in temperature, its electrical resistance rises, reducing the current flowing through the element and helping regulate heat output.

Unlike passive enclosure heaters that rely primarily on natural convection, the integrated fan actively circulates warm air around the cabinet. This helps distribute heat more evenly and reduces cold spots where moisture may condense, particularly in enclosures containing densely installed electrical and electronic equipment.

The heater can be incorporated into an automatic cabinet temperature management system using a compatible external thermostat. This allows heating to be activated according to the required internal temperature, helping avoid unnecessary energy consumption while maintaining suitable conditions for installed components.

Reliable Condensation Prevention for Industrial Electrical Cabinets

Condensation can form inside electrical cabinets when internal surfaces cool below the dew point of the surrounding air. Moisture accumulation may contribute to corrosion, insulation deterioration, electrical faults and premature component failure. The Finder 7H.51.8.230.0250 helps address these risks by providing controlled heating and improved internal air circulation.

With its 250 W heating capacity, the unit is suitable for electrical enclosures requiring more substantial heat distribution than a small convection heater can provide. Its integrated fan helps circulate heated air around electrical components, supporting more uniform cabinet temperatures.

For effective operation, the heater should be installed with adequate clearance around its air inlet and outlet. Heater selection should consider enclosure dimensions, insulation, ambient temperature, internal heat generation and the desired minimum cabinet temperature.

Typical Applications

• Industrial electrical control cabinets.
• PLC and automation control panels.
• Electrical distribution and switchgear enclosures.
• Motor control centres and variable frequency drive cabinets.
• Outdoor electrical cabinets requiring internal anti-condensation heating.
• Telecommunications and infrastructure equipment enclosures.
• Renewable energy and power conversion cabinets.
• Industrial machinery and manufacturing control systems.
• Process control and instrumentation cabinets.
• Road and tunnel lighting control panels.
• Crane and hoist electrical control enclosures.
• OEM industrial cabinet heating and thermal management systems.