Description
The CHR25 is a semiconductor-based PTC (Positive Temperature Coefficient) enclosure heater designed for reliable anti-condensation and frost protection inside electrical cabinets and industrial enclosures. It automatically regulates its heating output based on ambient temperature, making it energy-efficient and self-limiting for safe continuous operation.
It is widely used in control panels, automation systems, telecom cabinets, outdoor enclosures, and industrial switchgear where a stable internal temperature is required to protect sensitive electrical and electronic components from moisture, condensation, and low-temperature failure.
The compact design and DIN rail mounting system make it easy to install in space-limited panels, while the PTC technology ensures safe operation without overheating risks.
KEY FEATURES
• PTC semiconductor self-regulating heating technology
• Rated power: 25W (at nominal ambient conditions)
• Automatic temperature-controlled heating without external thermostat
• Prevents condensation, moisture, and frost inside enclosures
• Energy-efficient operation with low power consumption
• Compact design for space-saving installation in panels
• DIN rail mounting for quick and secure installation
• Safe low surface temperature operation
• Maintenance-free and long service life design
• High reliability for continuous industrial operation
• Suitable for harsh industrial environments
• Silent operation (no moving parts in standard PTC heater type)
SPECIFICATIONS
• Product Type: Semiconductor PTC Enclosure Heater
• Model: CHR25
• Rated Power: 25W
• Heating Technology: PTC (Positive Temperature Coefficient) self-regulating element
• Supply Voltage: 110–240V AC/DC (typical industrial range, model dependent)
• Mounting Type: 35 mm DIN rail mounting
• Housing Material: Aluminium profile with heat-resistant polymer insulation
• Protection Class: IP20 (panel internal use)
• Operating Temperature Range: approx. -45°C to +70°C
• Storage Temperature: approx. -45°C to +80°C
• Electrical Connection: Screw or spring clamp terminals (variant dependent)
• Conductor Size: up to 2.5 mm²
• Installation Position: Vertical mounting is recommended for best airflow
• Service Life: High durability due to a solid-state heating element (no mechanical wear)
• Application: Electrical control panels, switchgear cabinets, automation systems, telecom enclosures, outdoor control boxes, industrial equipment enclosures
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