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DJR-L (JRD) Aluminum Alloy Heater PTC 50-400W
  • DJR-L (JRD) Aluminum Alloy Heater PTC 50-400WDJR-L (JRD) Aluminum Alloy Heater PTC 50-400W
  • DJR-L (JRD) Aluminum Alloy Heater PTC 50-400WDJR-L (JRD) Aluminum Alloy Heater PTC 50-400W
  • DJR-L (JRD) Aluminum Alloy Heater PTC 50-400WDJR-L (JRD) Aluminum Alloy Heater PTC 50-400W
  • DJR-L (JRD) Aluminum Alloy Heater PTC 50-400WDJR-L (JRD) Aluminum Alloy Heater PTC 50-400W
  • DJR-L (JRD) Aluminum Alloy Heater PTC 50-400WDJR-L (JRD) Aluminum Alloy Heater PTC 50-400W
  • DJR-L (JRD) Aluminum Alloy Heater PTC 50-400WDJR-L (JRD) Aluminum Alloy Heater PTC 50-400W

DJR-L (JRD) Aluminum Alloy Heater PTC 50-400W

Comewill factory's DJR-L (JRD) Aluminum Alloy Heater PTC 50-400W is a high-performance cabinet heater designed to eliminate condensation and maintain optimal temperature and humidity levels inside electrical cabinets, ensuring reliable operation and extended equipment life.

As the professional manufacturer in China, Comewill would like to provide you high quality DJR-L (JRD) Aluminum Alloy Heater PTC 50-400W, which is engineered to protect your electrical cabinets from the damaging effects of moisture and condensation. High humidity levels inside distribution cabinets can cause operational issues, impair mechanical components, and even trigger tracking phenomena that threaten the stability of your electrical system. This smart heater actively manages both temperature and humidity, ensuring a safe and stable environment for your critical equipment.


Designed with dual-trigger activation, the cabinet heater automatically turns on when the internal temperature falls below a preset threshold and humidity rises above a preset limit. Once activated, it efficiently warms the cabinet interior, completely preventing condensation build-up and safeguarding electrical components from moisture-induced failures.

Product Application

The application range of our DJR-L (JRD) Aluminum Alloy Heater PTC 50-400W is extensive. It is suitable for various types of electrical equipment, including:
IS control cabinets
High and low voltage control cabinets
High and low voltage switch cabinets
Ring network cabinets
Outdoor terminal boxes
Mechanical control cabinets
Box-type substations
Dry-type substations
Other similar electrical equipment

Features and Benefits

Cost-effective & Extra-Long Service Life

Constructed from premium aluminum alloy and high-grade PTC materials.

Built-in integrated control chips monitor temperature in real time.

Dynamic heating adjustment prevents overheating and sudden burnout.

Lasts 2-3 times longer than standard cabinet heaters, reducing maintenance costs and downtime.

Safe & Environmentally Friendly Design

Maximum surface temperature never exceeds 200°C, even at full power.

No red-hot surfaces, eliminating fire hazards and the need for additional insulation.

Touch-safe design ensures maintenance personnel can inspect without risk of burns.

Made with non-toxic, eco-friendly materials compliant with international environmental standards.

Intelligent Energy-Saving Operation

Advanced temperature-sensing control system adjusts heating power dynamically.

Maintains optimal dehumidification temperature while reducing energy consumption by up to 30%.

Wide adaptive voltage range ensures stable performance under fluctuating power supply conditions.

No open flames or sparks, enhancing operational safety inside electrical cabinets.

Technical Specifications

Model DJR-L (JRD)
Type Aluminum Alloy Heater PTC
Power Range 50 – 400 W
Material High-grade aluminum alloy casing, PTC heating elements
Max Surface Operating Temperature 200 °C
Control Method Built-in intelligent temperature and humidity control chips
Safety Features No sparks, no flames, anti-overheating mechanism
Applications Wide range of electrical cabinets and outdoor enclosures





Hot Tags: DJR-L (JRD) Aluminum Alloy Heater PTC 50-400W, China, Manufacturer, Supplier, Factory, Wholesale, Customized, in Stock, Made in China, Low Price, Quality
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