Heater Rittal SK 3105.430 — 800 W, 115 V AC, 50/60 Hz, aluminium enclosure

The Rittal SK 3105.430 heater is a compact enclosure heater rated at 800 W with 115 V AC input at 50/60 Hz, designed for industrial control cabinets and electrical enclosures. Housed in an aluminium casing with a forced-air fan version, it maintains internal temperatures above the dew point to prevent condensation, reduce relative humidity and protect sensitive electronic components from corrosion and short circuits. The unit provides continuous thermal output in a range from 235 to 800 W, offering adjustable heating capacity for varied environmental conditions.

Advantages

Designed for reliable temperature regulation inside switchgear and automation cabinets, this enclosure heater combines durable aluminium construction with a fan-assisted heat distribution to accelerate moisture prevention. Its rated 800 W output and compatibility with 115 V AC at 50/60 Hz make it suitable for typical industrial power environments. The continuous output range enables stable internal climate control to protect components and extend equipment life.

Suitable for

• Industrial control cabinets and electrical enclosures
• Switchgear, PLC and automation cabinets in manufacturing plants
• Utility and infrastructure cabinets located in cold or humid environments
• Enclosures where condensation prevention and humidity control are required

When it may not be suitable

This heater is intended for enclosed electrical cabinets and is not designed as a general-purpose space heater. It may be unsuitable for very small enclosures where 800 W would cause excessive temperature rise or for applications requiring intrinsic safety or explosion-proof certification. For enclosures with special certification requirements (e.g., hazardous locations), select a product specifically certified for that environment.

Key specifications

• Rated power: 800 W (continuous output range 235–800 W)
• Input voltage and frequency: 115 V AC, 50/60 Hz
• Housing material: aluminium
• Cooling/air distribution: fan-assisted (version with fan)
• Application: enclosure heating to prevent condensation and control relative humidity

How to use

Install the heater inside the enclosure following the cabinet manufacturer’s mounting guidelines and ensuring adequate clearance from components sensitive to direct heat. Connect to a 115 V AC supply and configure any integrated controls or external thermostatic control to maintain internal temperature above the dew point. Position the heater to allow even air circulation with the fan distributing warm air across internal components. Regularly inspect mounting, electrical connections and the fan for dust or obstruction to ensure reliable operation.

What to consider before purchase

• Confirm enclosure internal volume and heat-loss characteristics to ensure 800 W is appropriate for target temperature rise.
• Verify supply voltage compatibility (115 V AC, 50/60 Hz) at the installation site.
• Check whether a fan-assisted version is acceptable for noise or airflow requirements inside the cabinet.
• Determine whether special certifications (e.g., ATEX, UL) are required for the installation environment.

Usage recommendations

Use the heater with a thermostat or humidity-controlled switch to avoid unnecessary energy consumption. Schedule periodic maintenance to clean the fan and verify electrical connections. Combine with proper enclosure seals and ventilation measures to achieve effective humidity control and extend the life of installed electronics.