1. The altitude should not exceed 2500 meters.
2. The ambient temperature is -25℃~+50℃.
3. The air humidity does not exceed 50% at 40°C, and does not exceed 90% at 20°C.
4. The surrounding environment has no corrosive gas, no conductive dust, and no flammable and explosive media.
5. There is no severe vibration at the installation site.
6. The voltage distortion rate of the operating environment does not exceed 5%, otherwise the reactor must be connected in series.

The ZUFK-T composite switching switch adopts advanced single-chip detection technology to achieve precise control of the relay's rapid closing at the voltage zero point and rapid disconnection at the current zero point, thereby improving the switching speed and compensation effect, and improving the anti-harmonic ability . Due to the use of magnetic latching relays, the device only consumes electricity at the moment of switching action, and does not consume electricity at ordinary times, which truly achieves the purpose of energy saving and consumption reduction. The input signal and the device have photoelectric isolation, strong anti-interference ability, safe and reliable operation.

Main technical parameters
1. Rated voltage: 400/230V±20%
2. Switch withstand voltage: ≥2000V
3. Switch voltage drop: ≤0.05V

Working conditions
1. Working temperature: -25℃~55℃ Storage and transportation temperature: -40℃~85℃;
2. Relative humidity: 5%-95%, non-condensing;
3. Atmospheric pressure: 80kPa-110kPa;