Civaux CHR100 Semiconductor PTC Enclosure Heater (100W)

The Civaux CHR100 is an industrial grade, semiconductor PTC (Positive Temperature Coefficient) convection enclosure heater. It is engineered for heavy duty thermal management inside electrical cabinets, automation control panels, and large instrument housings.

Delivering a powerful continuous thermal output of 100W, this heating unit is designed to keep internal ambient temperatures safely above the dew point. This eliminates condensation build up, frost formation, and corrosion, safeguarding complex electronics such as PLCs, variable frequency drives (VFDs), and power supplies from moisture induced short circuits and failures.

Key Features

Self Regulating PTC Technology: Powered by a semiconductor PTC thermistor element. The internal resistance naturally increases as the temperature rises, automatically throttling the current draw and stabilizing heat output. This dynamic feature prevents localized overheating and eliminates the risk of thermal runaway.
Maximised Convection Cooling Profile: Enclosed within an extended, black anodized extruded aluminum profile body featuring extensive vertical fins. This profile geometry acts as a natural chimney, generating high volume convection currents that circulate warm air uniformly without needing a mechanical fan.
Clearly Marked Touch Safe Terminals: Outfitted at the base with a heavily insulated, flame retardant 3 pole terminal block. To ensure an error free installation, the wire terminal entryways are molded with clear connection icons: the Earth Ground symbol L for Line, and N for Neutral.
Integrated DIN Rail Mount: Features a built in rear mounting channel design that snaps directly onto standard 35 mm DIN rails (EN 60715). This allows for secure, toolless vertical installation at the base of control cabinets.

Technical Specifications

Feature	Specification
Model / Part Designation	CHR100
Brand / Manufacturer	Civaux / Civaux Electric
Heating Element Type	Semiconductor PTC Resistor
Heating Power Capacity	100 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 4.5 A to 5.0 A during initial power up phase
Radiator Body Material	Extruded aluminum profile, black anodized finish
Connection Terminal Matrix	3 pole screw terminal block (Earth, Line, Neutral)
Mounting Configuration	Vertical convection placement on standard 35 mm DIN rail
Ingress Protection Rating	IP20 (Finger safe terminal guard)

Applications

High Capacity Enclosure Condensation Protection: Frequently paired with a mechanical Normally Closed (NC) thermostat (like the Civaux CTC01) to automatically control heating cycles in larger industrial panel environments.
Outdoor Automation Infrastructure: Installed inside large outdoor telecommunication huts, traffic control hubs, solar recombiner enclosures, and outdoor pumping substations to shield relays from freezing weather.
Harsh Process Plants: Deployed across wastewater treatment plants, offshore oil platforms, and chemical manufacturing bays to protect field distribution panels from extreme humidity fluctuations.