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Application:

BK(DK) Series control transformer(Hereafter call transformer) is suitable for circuit of 50~60Hz, voltage up to 500V, usually applied as power supply for machine tool electrical appliances, locallightings and indicator lamps power supply.

Structure Character:
  According to different structures, BK transformer belongs to shell type, and according to the installation mode, it belongs to vertical type.

Model Means:

  BK- □                     DK- □  

  B:Transformer                  D: Single Phase

  K: Control                   K: Control    

  □: Rated Capacity              □: Rated Capacity

Working Enviconment :

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 bytemperature change should be taken into consideration.

Outline and Install dimension

type

Outline dimension(mm)

Hole distance for installation(mm)

Installation hole(mm)
K × J

Bmax

Dmax

Emax

A

C

BK-50

78

66

90

56±0.4

50±3

5 × 12

BK-100

84

78

93

56±0.4

62±2.5

6 × 12

BK-150

102

88

110

83±0.4

70±2.5

6 × 12

BK-250

102

95

110

83±0.4

76±3

9 × 11.5 

BK-300

120

127

135

100±0.4

90±3

9 × 11.5 

BK-400

146

130

160

123±0.4

90±3

9 × 11.5 

BK-500

146

145

160

123±0.4

105±3

9 × 11.5 

BK-700

146

155

160

123±0.4

115±3.5

9 × 11.5 

BK-1000

150

165

160

123±0.4

125±3.5

9 × 11.5 

BK-1500

171

200

190

145±0.4

135±3.5

9 × 11.5 

BK-2000

180

230

210

145±0.4

160±3.5

9 × 11.5 

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