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BK Machine Tool Control Transformers
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1. Application |
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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. |
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2. Structure character |
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According to different structures, BK transformer belongs to shell type, and according to the installation mode, it belongs to vertical type. |
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3.Working environment |
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1.Ambient air temperature: -5oC~+40oC, the highest monthly mean temperature should not exceed +30oC;
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 +25oC, and condensation on the product surface caused by temperature change should be taken into consideration. |
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4. Specification |
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| Model |
Overall size(mm) |
Hole distance for installation(mm) |
Installation hole (mm)K x 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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| Type |
Outline (mm) |
Mounting size(mm) |
Primary voltage |
Secondary voltage |
Weight (kg) |
QTY / CTN |
BK-25VA |
76×80×75 |
63×44 |
220V
380V |
380V,220V,110V,36V,
24V,12V,6V
(TO BE CHOSEN) |
1.97 |
16 |
BK-50VA |
85×90×80 |
71×61 |
3.3 |
16 |
BK-100VA |
103×92×95 |
87×69 |
5.5 |
12 |
BK-150VA |
103×100×95 |
87×76 |
6.4 |
8 |
BK-200VA |
103×106×95 |
87×81 |
7.3 |
8 |
BK-250VA |
115×110×130 |
95×84 |
9 |
6 |
BK-300VA |
115×115×130 |
95×86 |
9.87 |
6 |
BK-400VA |
134×132×150 |
107×93 |
13.9 |
4 |
BK-500VA |
134×137×150 |
107×98 |
15.5 |
4 |
BK-1000VA |
153×149×168 |
128×115 |
25 |
2 |
BK-1500VA |
175×185×185 |
140×135 |
17 |
1 |
BK-2000VA |
175×195×185 |
140×145 |
21 |
1 |
BK-2500VA |
207×250×230 |
168×163 |
25 |
1 |
BK-3000VA |
207×250×230 |
168×173 |
28 |
1 |
BK-4000VA |
240×240×250 |
200×160 |
40 |
1 |
BK-5000VA |
240×250×250 |
200×170 |
41 |
1 |
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