The third reason the PX3 Series meets the customer’s need is because of its durability because of the following features. High insulation resistance (>100 MΩ, 1500 Vdc) and dielectric strength (AC 1500 V, 1 min. or AC 1800 V, 1 s), and freeze/thaw resistance which allows the PX3 Series to survive exposure to frost which is commonly found in refrigeration systems. High EMC radiated immunity (200 V/m per ISO 11452-2) combined with shock and vibration tolerance, a wide operating temperature range, and the ability to support overall system uptime, quality, reliability and warranty.