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| HR17 Series Fuse Type Isolating Swirtch
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Application
HR17 Series Fuse Type Isolating Swirtch is of state
of the art in the middle 1990s in the world.Its rated frequency is 50Hz(or
60Hz),rated insulation voltage 800V,rated working voltage up to 690V,and
rated working current up to 630A.It can be used in the distribution
circuit of high short-circuit current and the motor circuit,serving
for power swtich,isolating switch and emergency switch as well as circuit
protector.Generally,it cannot be directly used for switching of single
motor and shall be used indoors. |
| Model and Definition |
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Normal Working Conditions
1.The ambient air temperature shall not exceed +40℃.The
average value shall not exceed +35℃ within 24 hours.The lower-limit
of ambient air temperature is -5℃
2.The height above sea level for installing the switch
shall not exceed 2000m.
3.When at max.temperature of +40℃,relative air
humidity shall not exceed 50%.Higher relative humidity such as 90% at
the temperature of 20℃,is allowed under lower temperature.Special
measure shall be taken against occasional condensation caused by temp.change.
4.The polluion grade of environment for installing switch
is 3.
5.The switch shall be verically installed in the place
without vibration or shock.
Structural Features
HR17 Series Fuse Type Isolating Switch is composed of four
parts:base(with contace).upper and lower electric shields,switch over(wirh
fuse body).Both mounting base and switch cover are made of plastic and
designed with electric shock shield.Therefore,this series switch features
compact structure,light weigh,reliable operation,safety and easy in
installation,and beautiful appearance,etc. |
| Applicable fuse size |
00 |
1 |
2 |
3 |
| Power supply frequency |
AC.50Hz |
AC.50Hz |
AC.50Hz |
AC.50Hz |
| Rated voltage (V) |
690 |
500 |
400 |
690 |
500 |
400 |
690 |
500 |
400 |
690 |
500 |
400 |
| Rated insulation voltage |
800 |
800 |
800 |
800 |
| Rated working voltage (V) |
160 |
250 |
400 |
630 |
| Conventional closed heating current (A) |
160 |
250 |
400 |
630 |
| Using category |
AC-21B (690V) |
AC-21B (690V) |
AC-21B (690V) |
AC-21B (690V) |
| AC-22B(500V) |
AC-22B(500V) |
AC-22B(500V) |
AC-22B(500V) |
| AC-23B(400V) |
AC-23B(400V) |
AC-23B(400V) |
AC-23B(400V) |
| Rated making capacity |
725V.240A |
725V.375A |
725V.600A |
725V.945A |
| 525V.480A |
525V.750A |
525V.1200A |
525V.1890A |
| 420V.1600 |
420V.2500A |
420V.4000A |
420V.6300A |
| Rated breaking capacity |
725V.240A |
725V.375A |
725V.600A |
725V.945A0 |
| 525V.480A |
525V.750A |
525V.1200A |
525V.1890A |
| 420V.1280A |
420V.2000A |
420V.3200A |
420V.5040A |
| Rated limit short-circuit |
50 |
100 |
100 |
50 |
100 |
100 |
50 |
100 |
100 |
50 |
100 |
100 |
| Current (KA) |
12 |
23 |
34 |
48 |
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Application Between Switch and Fuse
| Conventional free air heating current(A)
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Fuse size |
Applicable fuse body current value(A) |
| 160 |
00 |
4,6,10,16,20,25,32,35,40,50,63,,80,100,125,160 |
| 250 |
1 |
80,100,125,160,200,224,250 |
| 400 |
2 |
125,160,200,224,250,300,315,355,400 |
| 630 |
3 |
315,355,400,425,500,630 |
Note:When the switch is used in the motor circuit,the rated current of
fuse is allowed to larger than the raterd working current of switch.
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Outline and Installation Size
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A |
B |
C |
D |
E |
F |
G |
H |
K |
L |
M |
O |
P |
Q |
| HR17-160 |
106 |
185 |
90 |
45 |
47.5 |
120 |
60 |
155 |
109 |
181 |
103 |
205 |
110 |
17 |
| HR17-250 |
185 |
268 |
120 |
66 |
- |
196 |
199 |
84 |
199 |
105 |
115 |
294 |
183 |
20 |
| HR17-400 |
253 |
333 |
145 |
80 |
- |
262 |
224 |
92 |
249 |
124 |
131 |
339 |
211 |
25 |
| HR17-630 |
253 |
333 |
145 |
94.5 |
- |
262 |
98.5 |
259 |
48 |
127.5 |
139.5 |
360 |
211 |
28 |
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