JDW series low-voltage external fuse-type isolating switch is suitable for AC 50Hz, rated voltage 500V and below distribution line, as the moderate protection and overload protection of the low-voltage side of the transformer, under certain conditions, it can be no-load transformer, no-load line and Rated operating current.

1.Ambient air temperature is not higher than +40 ° C, not lower than -5 ° C

2.The altitude of the installation site does not exceed 2000m

3.At a maximum temperature of +40 ° C, the relative humidity of the air does not exceed 50%, and at a lower temperature, higher relative humidity can be allowed, for example, 90% at 20 ° C, and occasional condensation due to temperature changes Take special measures

4.The pollution level of the surrounding environment does not exceed level 3

5.It is installed in a place where there is no significant shaking, shock vibration and no rain or snow. At the same time, there is no explosive medium at the installation site, and there is no gas and dust in the medium which is enough to corrode metal and destroy insulation

Type	Rated voltage (KV)	Rated current (A)	Impact withstand voltage		Power frequency withstand voltage
			Relatively (kV)	Fracture room (kV)	Relatively (kV)	Fracture room (kV)
（H）JDW2-0.5/200	0.5	200	4	5	2	3
（H）JDW2-0.5/400	0.5	400	4	5	2	3
（H）JDW2-0.5/500	0.5	500	4	5	2	3
（H）JDW2-0.5/630	0.5	630	4	5	2	3
（H）JDW2-0.5/800	0.5	800	4	5	2	3

Type	Rated voltage (KV)	Rated current (A)	Impact withstand voltage		Power frequency withstand voltage
			Relatively (kV)	Fracture room (kV)	Relatively (kV)	Fracture room (kV)
JDW3-0.5/200	0.5	200	4	5	2	3
JDW3-0.5/400	0.5	400	4	5	2	3
JDW3-0.5/600	0.5	600	4	5	2	3

Type	Rated voltage (KV)	Rated current (A)	Impact withstand voltage		Power frequency withstand voltage
			Relatively (kV)	Fracture room (kV)	Relatively (kV)	Fracture room (kV)
HRW0-0.5/200	0.5	200	4	5	2	3
HRW0-0.5/400	0.5	400	4	5	2	3
HRW0-0.5/600	0.5	600	4	5	2	3