SK3105.400 Rittal Enclosure heater 800/870 W 230 V 1~ 50/60 Hz WHD: 103x200x103mm

Why Choose the Rittal SK3105.400 Enclosure Heater with Fan?

The Rittal SK3105.400 is a high-output enclosure heater with integrated fan, designed to regulate relative humidity, prevent temperatures from falling below the dew point and help stop condensation forming inside electrical and industrial enclosures. Maintaining suitable internal conditions helps protect electrical and electronic components against corrosion, moisture and consequential short-circuit damage.

Providing a continuous thermal output of 800-870 W at 10 °C, the SK3105.400 combines a PTC heating element with a pre-integrated fan for effective warm-air circulation. The fan-assisted design distributes heat throughout the enclosure, making this model particularly suitable for applications where a high heating output and improved temperature distribution are required.

The SK3105.400 operates from a 230 V, 1~, 50/60 Hz supply and measures only 103 × 200 × 103 mm. Its anodised aluminium construction, IP20 protection, Class II all-insulated design and operating temperature range of -33 °C to +65 °C provide a compact and dependable climate-control solution for industrial enclosure installations.

Key Advantages

• High continuous thermal output of 800-870 W at 10 °C.
• Integrated fan provides effective warm-air circulation throughout the enclosure.
• Helps prevent condensation, corrosion and moisture-related electrical faults.
• PTC heating technology provides dependable enclosure heating.
• Compact 103 × 200 × 103 mm dimensions simplify integration into industrial cabinets.
• Quick-connection terminal supports straightforward electrical installation.
• Wide operating temperature range of -33 °C to +65 °C.
• Class II all-insulated construction provides electrical protection.
• Suitable for use with compatible thermostats and hygrostats for controlled climate management.

Key Features

• Rittal SK enclosure heater with fan.
• 800-870 W continuous thermal output at an ambient temperature of 10 °C.
• 230 V single-phase AC rated operating voltage.
• 50/60 Hz operating frequency.
• Pre-integrated fan for forced-air heat distribution.
• PTC heater supplied with fan and assembly parts.
• Quick-connection terminal for electrical connection.
• Anodised aluminium construction.
• IP20 protection to IEC 60529.
• Protection Class II, all-insulated.
• 6 A miniature circuit-breaker/fuse pre-fuse requirement.
• Suitable for thermostat or hygrostat-controlled enclosure heating.

High-Output Enclosure Heating and Condensation Control

Temperature fluctuations can cause moisture to condense inside electrical enclosures when internal surfaces fall below the dew point. The Rittal SK3105.400 supplies high-output heating to help maintain suitable enclosure temperatures and regulate relative humidity, reducing the risk of condensation that can contribute to corrosion, insulation deterioration and electrical short circuits.

The integrated fan circulates heated air around the enclosure, helping improve temperature distribution around electrical and electronic equipment. For precise temperature regulation, Rittal recommends using a suitable enclosure thermostat, while a hygrostat can be used when the primary objective is condensation prevention. For larger enclosures, the installation layout should be considered carefully to achieve even heat distribution.

Typical Applications

• Industrial electrical and control enclosures.
• Factory automation cabinets.
• Machine control panels.
• Outdoor and cold-environment enclosure installations.
• Electrical cabinets exposed to significant temperature fluctuations.
• Condensation prevention around sensitive electrical equipment.
• Process control and instrumentation enclosures.
• OEM machinery and automated production equipment.