The moisture meter can quickly measure the moisture content of the grain. 1. Orbital installation: The automatic dual power switch is a miniature power switch. The switch is mainly used to check whether the main or backup power supply is normal. This product is specifically designed for rail mounting and is dedicated to the PZ30 distribution box. 2. Easy Maintenance: This automatic dual power switch has strong structure, easy installation and maintenance, and long service life. It can be operated manually. 3. PC and Silver Material: This switch uses silver contacts to improve the conductivity and lifespan of the product, and uses fireproof PC material for superior insulation, high temperature resistance, and anti-aging. 4. Instant switching: In the event of an irregularity in the normal power supply, the backup power supply works immediately, switching to backup power in the event of a power failure and to main power supply in the case of an incoming connection, with a millisecond level switching without power supply, ensuring continuity, reliability and safety of power supply. 5. Wide Application: This automatic transfer switch is widely used in various places where continuous power failure is not allowed, such as factories, supermarkets, nurseries, etc. Specification: Item Type: Automatic Dual Power Switch; Model: CHLT 125 3P Material: PC, Silver Insulation Voltage: AC690V Rated Voltage: AC400V Coil Voltage: AC230V Specification: 3P Electrical life: 2000 times Mechanical life: 5000 times Rated short-circuit current: 50kA Fuse: RT16-00-63A Rated pulse withstand voltage: 8kV Control circuit: Rated control voltage Us, AC220V 85% Us-110% Us Auxiliary circuit: 2 relays, each relay has two sets of contact capacitance, AC220V50HZ le = 5y Touch time: < 50 ms Operation conversion time: < 50ms Return time: < 50ms Closing time: < 50ms List of packages: 1 x Automatic Dual Power Switch 1 x User Manual Note: 1. The maximum ambient temperature should not exceed 40 ℃, the minimum should not be lower than -5 ℃, and the average temperature within 24 hours should not be higher than 35 ℃. 2. The height of the installation site should not be higher than 2000m. 3. When the maximum temperature reaches 40℃, the relative humidity at the installation site should not exceed 50%; when the temperature is the minimum temperature of -5℃, the relative humidity is higher, for example, the temperature is 25℃, and the relative humidity is 90%. Due to temperature changes, special measures should be taken to cope with occasional condensation on the outside of the product. Before installation, check the integrity of the SZR, turn the SZR on or off with the operating lever, check the flexibility of the drive and test the load generation and disconnection conditions for each phase of normal power supply and standby.