Transformer
![]() Fixed type step-up/down Transformer |
![]() JBK3 Machine Tool Control Transformer |
![]() BK/DK Control Transformer |
![]() Dry Type Transformer |
![]() Light Control Transformer |
HBD Fixed type step-up/down Transformer |

General
The fixed type step-up / down transformer is an ideal AC step-up/down power supply. It can step down the voltage from 220V to 110V or step up it from 110V to 220V effectively, with advantages of no waveform distortion , high efficiency, elegant appearance , ease of use , effective operation for a long term, etc. It is suitable for imported electrical appliances.
Specification
| Model(VA) | Product size(cm) | Package size(cm) | Weight(kg) | Qty |
| 50 | 16×12.3×11.3 | 39.5×29×27.5 | 15.5 | 8 |
| 75 | 16×12.3×11.3 | 39.5×29×27.5 | 15.5 | 8 |
| 100 | 16×12.3×11.3 | 39.5×29×27.5 | 18 | 8 |
| 150 | 16×12.3×11.3 | 39.5×29×27.5 | 18 | 8 |
| 200 | 16×12.3×11.3 | 39.5×29×27.5 | 27 | 8 |
| 250 | 16×12.3×11.3 | 39.5×29×27.5 | 27 | 8 |
| 300 | 16×12.3×11.3 | 39.5×29×27.5 | 27 | 8 |
| 350 | 16×12.3×11.3 | 39.5×29×27.5 | 27 | 8 |
| 500 | 16×12.3×11.3 | 39.5×29×27.5 | 30 | 8 |
| 750 | 16×19×13.5 | 45×25×35 | 22 | 4 |
| 1000 | 16×19×13.5 | 45×25×35 | 28 | 4 |
| 1500 | 16×19×13.5 | 45×25×35 | 28 | 4 |
| 2000 | 22.5×20×16 | 49.5×28.5×20 | 19 | 2 |
| 3000 | 22.5×20×16 | 49.5×28.5×20 | 23 | 2 |
| 5000 | 29×22.5×25 | 32.5×29.5×23.5 | 17 | 1 |
JBK3(DK3) Machine Tool Control Transformer |

Application
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 less 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.
Model Meaning
Overall Size
Specification
| Model | Overall size(mm) | Hole distance for installation(mm) | Installation hole K or K×J(mm) |
Fmax (mm) |
|||
| Bmax | Dmax | Emax | A | C | |||
| JBK3-40, 63 | 78 | 72 | 89 | 56±0.4 | 51±2 | 4.8×9 | 12 |
| JBK3-100 | 85 | 85 | 94 | 64±0.4 | 66±2 | 4.8×9 | 12 |
| JBK3-160 | 96 | 91 | 109 | 84±0.4 | 73±2 | 5.8×11 | 14 |
| JBK3-250 | 96 | 105 | 109 | 84±0.4 | 87±2 | 5.8×11 | 14 |
| JBK3-400 | 120 | 109 | 123 | 90±0.4 | 90±2 | 7×12 | 18 |
| JBK3-630 | 150 | 112 | 150 | 122±0.5 | 90±2 | 7×12 | 22 |
| JBK3-1000 | 160 | 195 | 151 | 126±2 | 152±2 | 7×12 | 18 |
| JBK3-1600 | 184 | 220 | 163 | 140±2 | 176±2 | 7×12 | 18 |
| JBK3-2500 | 200 | 250 | 171 | 172±2 | 200±2 | 7×12 | 18 |
BK/DK Control Transformer |

Application
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, locallightings and indicator lamps.
Model Meaning
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.
Specification
| Model | Overall Size(mm) | Hole distance for installation(mm) | Installation hole(mm) K ×J |
|||
| B max | D max | E max | 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 | 60±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 |
JMB,BJZ,DG,BZ and DM Light Control Transformer |

Application
It is suitable for AC circuit of 50~60Hz, widely applied in electronic industry, industrial and mining enterprise, worked as control power supply for usual circuit of machine tool and mechanical equipment and as power supply for safetylighting and indicator lamp.
Model Meaning
Working Enviconment
1.Altitude should not exceed 2,500m;
2.Ambient air temperature: -25℃~+ 40℃;
3.Relative humidity: max average relative humidity of the dampest month is 90%;
4.Places that are free from severe vibration or shock;
5.Environment exists without explosive medium, gas or conductive dust hat will erode metal and destroy insulation;
6.Places that are free from rain or snow.
Main Technical Characters
The primary and secondary windings are winded separately, when the secondary one only has one winding, then it takes on all the rated capacity for transformer. If the secondary one accompanied with control, lighting and indicatorlamp windings, it will be winded respectively according to each winding capacity. For simplex winding transformer with center tap, all the center taps capacity should be lower than rated capacity of transformer, only the max voltageoutput terminal can bear the rated capacity.Specification and Installation Size
| VA | Rated input voltage(V) | Rated output voltage(V) | Overall size(mm) | VA | Rated input voltage(V) | Rated output voltage(V) | Overall size(mm) |
| 25 | 220 | 6(6.3) 12 24 36 48 110 127 220(330) |
150×160×130 | 700 | 220 | 6(6.3) 12 24 36 48 110 127 220(330) |
218×290×185 |
| 50 | 220 | 150×160×130 | 1000 | 220 | 218×290×185 | ||
| 100 | 220 | 150×160×130 | 1500 | 220 | 260×290×235 | ||
| 150 | 220 | 160×170×135 | 2000 | 220 | 260×290×235 | ||
| 200 | 220 | 160×170×155 | 2500 | 220 | 280×350×230 | ||
| 250 | 220 | 180×170×155 | 3000 | 220 | 280×350×230 | ||
| 300 | 380 | 180×170×155 | 4000 | 380 | 360×355×280 | ||
| 400 | 380 | 210×230×175 | 5000 | 380 | 360×355×280 | ||
| 500 | 380 | 210×230×175 | 10000 | 380 | 510×430×490 |
DG and SG series single-phase and three-phase dry type transformer |


General
DG and SG series single - phase and three - phase dry type transformer adopts high quality material and advanced technology , it has advantages of damp - proof and convenient maintenance, it can be applied to such powertransmission and distribution places like underground railway , high building, airport, station, wharf, enterprise, tunnel, etc.It is mainly used in power supply occasions of AC 50~60Hz and voltage less than 500V. All the input and output voltage , connection group and capacity of tapped winding can be designed and produced according to users' requirements.
Model Meaning

Working Enviconment
1.Ambient temperature: -15℃~+40℃
2.Altitude: <1000m
3.Relative humidity: <90%
4.Environment exists without gas, steam, chemical deposition, dust or dirt that will affect transformer's insulation seriously, also explosive or corrosive medium is not allowed.
5.If any special working conditions that are not in line with the above stipulations, user shall negotiate with us.
Main Technical Characters
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
Overall Size
| Model (KVA) | Overall size L×W×H (cm) |
Installation size (cm) |
Enclosure Size L×W×H (cm) |
Transformer Weight (kg ) |
Model (KVA) | Overall size L×W×H (cm) |
Installation size (cm) |
Enclosure Size L×W×H (cm) |
Transformer Weight (kg ) |
| SG-0.5 | 17×9×15 | 11×7.8 | 32×15×22 | 10 | SG-80 | 70×32 ×67 | 19.5×45 | 100×50 ×104.5 | 450 |
| SG-1 | 25×10×20 | 14×9 | 40×20×32 | 19 | SG-100 | 75×35 ×68 | 21×45 | 100×50 ×104.5 | 490 |
| SG-1.5 | 25×11×20 | 14×10 | 40×20×32 | 24 | SG-120 | 75×35 ×68 | 21.5×45 | 100×50 ×104.5 | 520 |
| SG-2 | 25×12×20 | 14× 11 | 40×20×32 | 27 | SG-150 | 85×37 ×68 | 23×45 | 120×65 ×114.5 | 650 |
| SG-2.5 | 25 13 20 | 14 ×12 | 40×20×32 | 30 | SG-200 | 95×45 ×68 | 29×45 | 120×65 ×114.5 | 850 |
| SG-3 | 30 13 25 | 20× 12 | 45×25×37 | 40 | SG-250 | 94×45 ×83 | 29×45 | 120×70 ×124.5 | 1080 |
| SG-4 | 30 14 25 | 20×13 | 45×25×37 | 45 | SG-300 | 105×45 ×95 | 29×45 | 120×70 ×124.5 | 1350 |
| SG-5 | 30 15 25 | 20×14 | 45×25×37 | 50 | SG Auto -0.5 | 17× 7 ×15 | 11×6 | 32×15×22 | 6.5 |
| SG-6 | 30 16 25 | 20×15 | 45×25×37 | 54 | SG Auto -1 | 17× 8 ×15 | 11×7 | 32×15×22 | 8.5 |
| SG-7 | 35 15.5 30 | 20×13.5 | 50×25×42 | 63 | SG Auto -1.5 | 17×10 ×15 | 11×9 | 32×15×22 | 11.5 |
| SG-8 | 35 16 30 | 20×14 | 50×25×42 | 66 | SG Auto -2 | 17×10.5 ×15 | 11×9.5 | 32×15×22 | 13 |
| SG-10 | 42 21 42 | 13.5×31 | 70×35×77 | 90 | SG Auto -3 | 25×10 ×20 | 14×9 | 40×20×32 | 20 |
| SG-20 | 52 24 52 | 15.5×40 | 70×35×77 | 180 | SG Auto -5 | 25×12 ×20 | 14×11 | 40×20×32 | 26 |
| SG-30 | 55 28 65 | 16.5×40 | 80×40×87 | 220 | SG Auto -6 | 30×13 ×25 | 20×12 | 45×25×37 | 39 |
| SG-40 | 61 30 65 | 17×40 | 80×40×87 | 265 | SG Auto -7 | 30×13.5 ×25 | 20×12.5 | 45×25×37 | 41 |
| SG-50 | 61 30 65 | 17.5×40 | 100×50 ×104.5 | 295 | SG Auto -8 | 30×14 ×25 | 20×13 | 45×25×37 | 45 |
| SG-60 | 70 32 66 | 19×45 | 100×50 ×104.5 | 370 | SG Auto -10 | 30×15 ×25 | 20×14 | 45×25×37 | 49 |
| SG-70 | 70 32 66 | 19×45 | 100×50 ×104.5 | 400 | --- | --- | --- | --- | --- |




