240v 12v Step Up Step Down Transformer Single Phase Electrical Transformer 20VA

JBK control transformer Gerneral BK series machine tool control transformer is suitable for circuit of 50~60Hz, voltage up to 500V, usually applied as power supply for machine tool electrical appliances, local lightings and indicator lamps. Working conditions 1.Ambient air temperature: -5C~+40C, the highest monthly mean temperature should not exceed +30C; 2.Altitude for installing place should not exceed 1000m; 3.When the ambient air temperature is +40C, the relative humidity