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BK/DK) control transformerClass: TRANSFORMER
BK-100VA-1
General
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.
Structure character (BK/DK) control transformer)
 According to different structures, BK transformer belongs to shell type, and according to the installation mode, it belongs to vertical type.
Model and its meaning (BK/DK) control transformer)
Working environment (BK/DK) control transformer)
1.Ambient air temperature: -5℃~+40℃, the highest monthly mean temperature should not exceed +30℃; 
2.Altitude for installing place should not exceed 1000m; 
3.When the ambient air temperature is +40℃, 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℃, and condensation on the product surface caused by temperature change should be taken into consideration.
Outline (BK/DK) control transformer)
Installation size (BK/DK) control transformer)
Model Overall size(mm) Hole distance for installation(mm) Installation 
hole(mm)
K×J
Bmax Dmax Emax A C
BK-50 76 76 83 61±0.4 54±3 5×12
BK-100 84 92 100 70±0.4 60±2.5 6×12
BK-150 96 105 110 80±0.4 62±2.5 6×12
BK-250 105 120 125 88±0.4 73±3 9×11.5
BK-300 115 125 125 95±0.4 76±3 9×11.5
BK-400 120 130 130 100±0.4 80±3 9×11.5
BK-500 134 144 150 100±0.4 86±3 9×11.5
BK-700 150 150 158 125±0.4 100±3 9×11.5
BK-1000 150 153 160 125±0.4 110±3.5 9×11.5
BK-1500 160 240 137 134±0.4 116±3.5 9×11.5
BK-2000 189 270 145 158±0.4 122±3.5 9×11.5
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