Civaux CHR50 Semiconductor PTC Enclosure Heater (50W)

The Civaux CHR50 is a high efficiency, semiconductor PTC (Positive Temperature Coefficient) convection enclosure heater designed for thermal management within electrical cabinets, automation control panels, and sensitive instrument housings.

Delivering a continuous thermal output of 50W, this industrial grade heating unit is specifically engineered to raise internal ambient temperatures above the dew point. This prevents harmful condensation build up, frost formation, and corrosion, thereby ensuring the longevity and operational reliability of internal electronics such as PLCs, drives, and power supplies.

Key Features

Self Regulating PTC Element: Built with an intelligent semiconductor PTC thermistor resistor core. The resistance profile automatically increases as temperature goes up, naturally limiting current draw and regulating the maximum heat output to prevent localized overheating.
Large Convection Anodized Profile: Enclosed in a heavy duty, black anodized extruded aluminum profile housing featuring deep vertical ridges. This structural geometry creates a powerful chimney effect that optimizes natural convection, driving a steady stream of warm air upwards without requiring a mechanical fan.
Integrated DIN Rail Mount: Includes a quick snap rear mounting channel configuration, allowing effortless, toolless vertical installation onto standard 35 mm DIN rails (EN 60715).
Finger Safe Termination Interface: Features a secure, insulated terminal block situated safely at the bottom of the heating assembly to accommodate structural line routing. The design keeps electrical connections clear of the main heating body, maintaining touch safe separation.

Technical Specifications

Feature	Specification
Model / Part Number	CHR50
Brand / Manufacturer	Civaux / Civaux Electric
Heating Element Technology	Semiconductor PTC Resistor
Heating Power Output	50 W (at an ambient temperature of 20 degrees Celsius)
Operating Voltage Range	Universal 110V to 250V AC/DC self adjusting capability
Max. Inrush Current	Approximately 2.5 A during initial startup phase
Radiator Body Material	Extruded aluminum profile, black anodized finish
Connection Terminal Matrix	3 pole screw terminal (Line, Neutral, Earth Ground)
Mounting Orientation	Vertical convection placement on standard 35 mm DIN rail
Ingress Protection Rating	IP20 (Finger safe barrier)

Applications

Enclosure Moisture Control: Paired alongside a mechanical Normally Closed (NC) panel thermostat (such as the Civaux CTC01) to automatically manage condensation protection in damp processing environments.
Outdoor Industrial Infrastructure: Installed inside traffic control towers, outdoor telecoms boxes, solar array recombiner boxes, and weather stations to safeguard relays from freezing temperatures.
Harsh Process Plants: Deployed in wastewater pumping stations, marine control rooms, and chemical facilities to mitigate thermal shock and humidity stresses on electronic circuit paths.