Low voltage control cabinet
Product overview
SZD series low voltage control cabinet is domestic novel drainage automatic control device, the unit is set for the production of water pumps, control the application of the experience, the expert argumentation, route optimization, carefully designed, including a variety of unique circuit is the current domestic, the most advanced control circuit. In order to use water efficiently and reliably, the series according to different needs, set the level control, pressure control, temperature control, time control, air conditioning control type, special type submersible sewage pump and fire control type seven types, each type has the main circuit short circuit, phase, overload and special pumps leakage, stator winding overtemperature protection function. In addition, each type is divided into single control type, multi pump main use, standby mutual control type, the main, mutual control products are equipped with a fault when the main pump automatically removed, spare pump automatic input function.  
Two, product features
The control cabinet series of complete function, reliable quality, beautiful appearance, is the ideal product of various types of pumps, the series controller is especially suitable for engineering professional production, municipal engineering, high-rise building water supply and drainage, fire, sprinkler, booster pump and automatic control of air conditioning heat circulating pump until the range of control is also suitable for other occasions, control of AC motor and starter.
Three, applicable conditions
1 the ambient air temperature is not higher than +40 DEG C, not less than -5 DEG C, the average temperature of 24h shall not be higher than +35.
2 indoor installation, use the site altitude not exceeding 2000m.
3 relative humidity of ambient air in the highest temperature of +40 is less than 50%, in the low temperature allows high relative humidity, such as +20 is 90% DEG C, should take into account the effects of temperature changes may happen.
4 installation of the vertical surface of the inclination of not more than 5 degrees. 5 equipment shall be installed in areas where there is no severe shock and shock, and not enough to make the electrical components corrode. 6 users with special requirements can be negotiated with the manufacturer