Compact Semiconductor Fan Heater Industrial Cabinet PTC Resistor Heater CSL 028. Touch-Safe Safety Design: Plastic casing UL94 V-0 protects users from heat with temperature safety cut-out. DIN Rail Mounting Options: Supports 35mm DIN rail installation via clip or screw fixing for easy setup. Long Service Life: PTC heating element ensures durability with a service life exceeding 40,000 hours. Wide Voltage Compatibility: Available in 120V and 230V variants with AC/DC 50/60 Hz frequency support. Compact Enclosure Heater: Prevents condensation in high-density enclosures with dimensions 90x85x115mm. Multiple Certifications: Compliant with RoHS, CB, CCC, ISO9001, and CE standards for global use. 3-Year Warranty Coverage: Comprehensive 3-year warranty provided for customer peace of mind. OEM/ODM Customization: Supports custom branding and manufacturing services for business partners.