to prevents equipment damage. With Self-resetting Function: The device can automatically return to a normal working state after a failure or abnormal situation without manual intervention. This function can greatly improve the availability and reliability of the device. 1-500 seconds self-reset time is adjustable. Input Phase Priority Selection: The changeover switch can set which power resource is the priority, when the priority phase recovers to the normal voltage, the phase transfer switch will change back to a priority power resource. Wide Applications: Suitable for a variety of occasions, such as rental houses, shopping malls, schools, factories, etc. Mainly used in all kinds of equipment and systems that need powersupply, such as industrial production equipment, elevators, air conditioning systems, powersupply systems, and so on. Specifications: Name: Automatic Phase Switching Protector Material: plastics Model: JJTP2-63V, JJTP2-100V (optional) Rated power voltage: 220 VAC Working voltage: 140-300VAC Rated frequency: 50/60Hz Hysteresis: Over voltage and asymmetry: 5V Under voltage: 3V Asymmetry trip delay: 10s Recovery delay time: 1-500s Voltage measurement accuracy: 1% (over the whole ranges) Rated insulation voltage: 450V Output contacts: 1NO Electricallife:100000 Mechanicallife:100000 Protection degree: IP20 Pollution degree: 3 Altitude: 2000m Operating temperature: -5 to 40 Humidity: <50% at 40 (without condensation) Storage temperature: -25 to 55 Package size: JJTP2-63A: 100 * 100 * 80mm / 3.94 * 3.94 * 3.15in JJTP2-100A: 110 * 110 * 80mm / 4.33 * 4.33 * 3.15in Package weight: JJTP2-63A: 400g / 0.88lb JJTP2-100A: 500g / 1.10lb Packing List: 1 * Automatic Phase Switching Protector