DG, BK control transformer phone: 13868434706 1. Scope DG, BK series machine tool control transformer is suitable for 500V 50-60Hz voltage to the circuit, it is often used as a tool to control lights and appliances or partial indicator of power use. DG, BK transformer shell structure can be divided according to type, according to the installation can be divided into vertical. 2. Use of the environment 1) ambient air humidity -5 ℃ to + 40 ℃, the average of 24 hours does not exceed + 35 ℃; 2) the installation site altitude of not more than 2000 m; 3) atmospheric relative humidity in the ambient air humidity +40 does not exceed ℃ 50%, at lower temperatures can have a higher relative humidity, the wettest month of the average maximum humidity of 90%, while the monthly average minimum temperature of + 25 ℃, and taking into account changes in temperature condensation product surface. Tel: 0577-27866806 Fax: 0577-61802675QQ: 1694771032 three-phase three-phase transformer isolation transformer line light transformer control transformer single phase transformer .http: //www.xuandq.com