HR18 series fuse type load isolating switch is applicable to high short circuit current circuit with AC 50(60)Hz, voltage up to 660V and rated working current up to 630A.
It possesses upper and lower end input and output structure. Lead in equipment with knife-edge and arc extinguishing equipment, and also can be operated with load.
It is used as power switch, isolating switch and emergency switch,and for protecting current.
| Model | Rated Voltage(kV) | Rated Current(A) | Pole | Type of Insulator | EXW (US$) |
| HR18-100A | 400 | 100 | 1P | Epoxy Resin | $15.85/PC |
| HR18-160A | 400 | 160 | 2P | Epoxy Resin | $16.85/PC |
| HR18-250A | 400 | 250 | 3P | Epoxy Resin | $43.85/PC |
| HR18-400A | 400 | 400 | 4P | Epoxy Resin | $68.85/PC |
| HR18-630A | 400 | 630 | 2P | Epoxy Resin | $115.85/PC |
|
Model
|
HR18-160A
|
HR18-250A
|
HR18-400A
|
HR18-630A
|
|
Fuse
|
NH00(NT00)
|
NH1(NT1)
|
NH2(NT2)
|
NH3(NT3)
|
|
Rated operational voltage Ue V
|
400 500 690
|
400 500 690
|
400 500 690
|
400 500 690
|
|
Rated operational current Ie A
|
125 160 125
|
250 200
|
400 315
|
630 500
|
|
Thermal current w/fuse link Ith A
|
160
|
250
|
400
|
630
|
|
Rated frequency Hz
|
50/60
|
50/60
|
50/60
|
50/60
|
|
Power loss at Im without fuse-link/phase W
|
12W
|
23W
|
34W
|
48W
|
|
Electrical durability
|
200
|
200
|
200
|
200
|
|
Mechanical durability
|
1400
|
1400
|
800
|
800
|
|
Degree of protection Open
|
IP20
|
IP20
|
IP20
|
IP20
|
|
Closed
|
IP30
|
IP30
|
IP30
|
IP30
|
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