AUTOMATIC POWER SWITCH NLQ4-125/3P Feature: EASY OPERATION: The transfer switch supports automatic and manual operation, reliable transmission, convenient installation and maintenance, and long service life. GOOD PERFORMANCE: When normal power supply is incorrect, backup power supply works immediately to ensure continuity, reliability and safety of power supply. GOOD STABILITY: Insulation and anti-interference design, self-switching and self-healing, ma stable performance, convenience and durability. MULTIPLE USES: Widely used in various situations where continuous power failure is not allowed, such as homes, centra, factories and farms, etc. DURABLE PLASTIC: The transfer switch is made of flame retardant plastic, which ma good insulation, high temperature and aging resistance, and is safe and reliable. Specification: Item Type: Transfer Switch Product model: NLQ4-125/3P Rated Current: 100A Rated voltage: 400 V AC Isolation voltage: 690 V AC Rated frequency: 50Hz/60Hz Electrical class: Insulation type class PC Rated pulse withstand voltage: 8KV List of packages: 1 x Transfer Switch Note: The ambient temperature should not exceed 40, not less than -5, and the average temperature within 24 hours should not be higher than 35 The height of the installation site should not exceed 2000 meters When the maximum temperature reaches 40 , the relative humidity at the installation site should not exceed 50%; when the temperature is the lowest temperature -5 , the relative humidity is higher, for example, if the temperature is 25 , the relative humidity is 90%. Special measures should be taken to deal with occasional condensation on product surfaces as a result of temperature changes