Engineered for mission-critical commercial refrigeration, the Paragon 8145-00 Defrost Timer is a 120V AC, 60Hz mechanical control designed for high-amperage environments requiring time initiation and temperature or pressure termination. As the direct replacement for the Paragon 8105-0, this unit integrates seamlessly into existing setups for electric heat, hot gas, or compressor off-cycle defrost systems. The heavy-duty synchronous motor and 40 Amp, 2 HP rated switch contacts ensure reliable operation in walk-in freezers and reach-in coolers. Utilizing a positive slider bar switch design, the 8145-00 maintains clean electrical contacts by wiping the surface of contaminants with every cycle. Technicians can program between 1 to 6 defrost cycles per day with a minimum of 4 hours between operations, while the adjustable backup defrost termination provides a secondary safety mechanism from 4 to 110 minutes. The steel NEMA 1 enclosure features multiple knockouts for versatile wiring and a pad-lockable hasp to prevent unauthorized timing adjustments in the field. Key Benefits Robust Switching Capacity: Features high-capacity 40 Amp contacts suited for heavy inductive loads and 2 HP motor applications. Precise Termination: Designed for remote temperature or pressure termination, allowing the system to exit defrost as soon as the evaporator is clear. Contaminant-Resistant Design: The positive slider bar switch ensures a reliable electrical connection and extends the lifespan of the internal contacts. Fail-Safe Protection: Includes a mechanical backup termination timer to prevent system overheating if the external sensing device fails to trip. Standardized Installation: Housed in a durable steel enclosure with standard knockouts, making it a drop-in replacement for the aging 8105-0 series. Common Questions Is the Paragon 8145-00 compatible with my 240V system? No, this specific model is rated for 120V AC. For 208/240V applications, you should utilize the Paragon 8145-20 or the 8145-AV auto-voltage model. Can I use this timer for time-only termination? While the 8145-00 is primarily designed for temperature or pressure termination via a remote sensor, it includes an adjustable mechanical backup that will terminate the cycle if the sensor does not activate within the set timeframe. How do I set the defrost frequency? The timer allows for 1 to 6 cycles daily. You simply insert the provided pins into the dial at your required start times, ensuring at least 4 hours of refrigeration between each defrost period. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
