Usually in front of the installation of a circuit breaker dihedral group isolation switch, are intended to isolate the circuit breaker and power, to form a clear break point; because the original circuit breaker is used in oil circuit breakers, oil circuit breakers require frequent maintenance, Second, it is necessary to have a clear break point side Zaozhuang pressure isolation switch, in order to facilitate maintenance; general Huzhou pressure isolation switch, outlet cabinet is from above downward pressure isolation switch bus powered by switchgear, circuit breakers in front of a group needs isolation switch to isolate the power supply, but sometimes Heze pressure isolation switch, back breaker may have to call, such as through other loops Reverse Reverse, capacitors and other devices, it is behind the circuit breakers also requires a set of isolation switch. Isolation switch for three-phase AC 50Hz, rated voltage 12KV indoor unit. Supply voltage and high-voltage equipment column load case load is turned off or convert line purposes. Taian pressure isolation switch | Huayi Electric Power (certified) | high voltage isolation switch provided by Xian Huayi power plant. Xian Huayi power plant (www.xahy.com) is a leader in Xi'an, high voltage circuit breakers, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Huayi power in leadership with the staff warmly welcome all inquiries negotiations to create electricity Huayi a better future.