250va IP00 Ei Isolation Transformer Customized Voltage Transformer (JBK3-250)

Product Description

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.

Working Conditions

1.Ambient temperature: -5°C~+40°C;

2.Altitude for installing place should not exceed 2000m;

3.Relative humidity: <95%;

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: 220V,380V or be customized

2.Output voltage: 6V,12V,110V or be customized

3.Capacity range: 25VA-100KVA above

4.Efficiency: ≥95%

5.Insulation class: B or above as customized

6.Type of cooling system: natural air drying or with fans cooling for IP20

7.Waveform distortion: no additional waveform distortion

8.Function: indication of input voltage, output voltage and current

9.Protection: over-current protection

10.Winding conductor material: usually use copper, can use aluminum if you have special requirements

11. Can operate itself without anybody attending for a long term

12.Electric strength: no breakdown or flashover phenomenon under power frequency sine voltage of 2000V for 1min

13.Overload capability: for 1min under two times of rated current

Overall dimension and installation dimension diagram

 

Outline and Installation dimension

Model	Rated capacity (VA)	Primary voltage (V)	Secondary voltage  (V)	Outline size (mm)			Hole distance for installation (mm)		Installation hole (mm)
				Bmax	Dmax	Emax	A	C	KxJ
JBK3-40	40	220, 380V or be customized	6.3,12,24,36,110,127,220,380V or be customized	82	78	92	56	52	5x9
JBK3-63	63			82	78	92	56	52	5x9
JBK3-100	100			86	92	95	64	69.5	5x9
JBK3-160	160			98	97	105	84	71.5	6x11
JBK3-250	250			98	110	105	84	85	6x11
JBK3-300	300			122	109	125	90	88	6x11
JBK3-400	400			122	113	125	90	92	6x11
JBK3-500	500			122	126	125	90	105	6x11
JBK3-630	630			152	110	150	130	90	8x14
JBK3-800	800			152	125	150	130	105	8x14
JBK3-1000	1000			230	170	156	160	142	7x14
JBK3-1600	1600			258	185	168	180	155	7x14
JBK3-2500	2500			285	210	175	210	175	7x14