JBK3 series machine tool control transformer is a kind of new product by reference to sample of SIMENS Company, it accords with standards like VDE0550, IEC204-1, IEC439, GB5226, etc. It is suitable for AC circuit of 50 ~ 60Hz, output rated voltage ess than 220V , input rated voltage less than 500V, worked as control power supply for mechanical equipment and general electrical appliance and as power supply for work lighting and signal lamp.

1.Input voltage: rated voltage ±10%

2.Output voltage: rated voltage +5% (no load)

3.Efficiency: ≥95%

4.Waveform distortion: no additional waveform distortion

5.Function: indication of input voltage, output voltage and current.

6.Protection: over-current protection

7.Can operate itself without anybody attending for a long term

8.Insulation resistance: ≥50MΩ

9.Electric strength: no breakdown or flashover phenomenon under power frequency sine voltage of 2000V for 1min

10.Overload capability: for 1min under two times of rated current

Model and its meaning (JBK3(DK3)machine tool control transformer)

Working conditions

The transformer could operate unfailingly under following condition.

1. Sea level altitude is lower than 2500M

2. Air temperature: not higher than 40ºC, and not lower than -25 ºC

3. Relative humidity: monthly average humidity is 90%.

4. A medium of no explosion hazard in where no air might corrode metal and destroy insulation, or no conductive dust existing.

5. A place of no weather effect.

Overall size (JBK3(DK3)machine tool control transformer)