JBK: Series Machine Tool Control Transformer

JBK series single phase machine tool control transformer comprehensive used in AC 50-60HZ, where Input, output voltage not over than 1000V. It is commonly used in machine tool working as local lighting, power of indicator light or the machine control electric appliance.
Model Mounting dimensions Mounting hole Outline dimension
  A C K J B D E
JBK3-40.63 56 47 5 9 82 76 92
JBK3-100 64 65.5 5 9 86 90 98
JBK3-160 84 71.5 6 9 98 96 112
JBK3-250 84 85 6 9 98 110 112
JBK3-400 90 90 8 14 122 112 130
JBK3-630 122 85 8 14 152 110 150
JBK3-1000 158 145 7 14 200 165 150
JBK3-1600 185 155 7 14 225 185 155
JBK3-2000 210 175 7 14 265 210 175
JBK3-2500 210 175 7 14 265 210 175
Model Mounting dimensions Mounting hole Outline dimension
  A C K J B D E
JBK4-40.63 56 47 5 9 80 80 88
JBK4-100 64 65.5 5 9 96 96 92
JBK4-160 84 71.5 6 9 98 98 110
JBK4-250 84 85 6 9 122 122 110
JBK4-400 90 90 8 14 122 122 128
JBK4-630 122 85 8 14 108 108 150

Model and Meaning

Working condition

1 .Ambient air temperature: -5°C~+40°C, the highest monthly mean temperature should not exceed +30°C;
2. Altitude for installing place should not exceed 2000m;
3. When the ambient air temperature is +40°C, the relative humidity should not exceed 50%, and it allows higher relative humidity under lower temperature. Max average humidity in the dampest month is 90%, meanwhile the lowest average temperature of this month is + 25°C, and condensation on the product surface caused by temperature change should be taken into consideration.

Outline and Mounting Dimensions

JBK3 series product appearance and installation dimensions

JBK4 series product appearance and installation dimensions

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