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| HR5 Series Fuse Type Isolating Switch
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Application
HR5 Serirs Fuse Type lsolating Switch (gereunafter feferred
to as switch) is applicable for the circuit of AC 50Hz (or 60Hz) rated
voltage up to 690V,and conventional ferr air heating current up to 630A.It
can be mainly used in the distribution circuit of high short-circuit
current and the motor circuit,serving for power switch, isolating switch
and emergency switch as well as circuit protector. Generallym it cannot
be directly used for switching fo single motor and shall be used indoors. |
Model and Definition
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Normal Working Conditions
1.Ambient air temperature
A.The upper limit of ambient air temperature in the installation place
shall not exceed + 40 and the lower limit not less than -5¡æ .
B.The average temp .value shall not exceed + 35¡æ witch 24 hours.
Note:Referring to the working condition that lower limit of ambient
air temp. is -10¡æ or -25¡æ, the user shall indicate that in the order.
2.The heght above sea level for installing the switch shall not exceed
2000m.
Note: if installation place for switchis above 2000m.the user shall
indicate that in the order.
3.When at max. temperature of +40¡æ,relative humidity of air shall not
exceed 50%.Higher relative humidity such as 90% at the temperature of
20¡æ if allowed unde lower temperature. Special measure shall be taken
against occasional condensation caused by temp. change.
4.The pollution grade:grade 3 for surrounding environment of switch.
5.The switch shall be vertically installed in the place without vibration
or shock.
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Structural Features
The switch is composed of two parts: steel base and plastic
cover board.3 pairs of clamp contacts and arc-extinguishing chamber
are mounted on the base with insulating spacer. The fuse body is mounted
on the cover board,directly serving for moving contact blade. The upper
cover can be removed from the base easily so as to faciltate theinstalltion
of switch,and safely change the fuse body.The arc-extinguishing chamber
of switchis made of plastic through pressing. For its simple structure,
it can be easily dismantled or assembled,Each arc-distinguishing chamber
is composed of inner and exterior compartments and mounted with arc
metal corner.That can increase arc-extinguishing ability,eliminate the
danger of flashover,and prolong the service life of contact.The switch
is also designed with a spring energy-storage mechanism for quick switching,enabling
it to quickly and safely actuate under extremely heavy condition,In
addition, the firing pin will spring out and actuate the travel switch
via a transmission shaft. Thus the singal of loss of phase is sent out
to alarm for taking measurement.
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Main technical Data
1.Rated insulation voltage:690V
2.Rated working voltage:380V,690V
3.Rated working current:380V,100A,200A,400A,630A,660A,100A,200A,315A,425A
4.Rated to table 1 for making and breaking capability of switch and
rated blowout short-circuit current.
5.Mechanical service life for switch is 1700 cycles (100A),1400 cycles(200A),and
800 cyces(400A and 630A) separately.
6.Electric service life of setich is 300 cycles(100A) and 200 cycles
(200A 400A,and 630A) separately,Refer to table 2 for making and breaking
conditions.
7.The rated working volatge of auxiliary switch(LX19K) is AC 380V, conventional
free air heating current 5A, and rated control capacity 300VA.
8.Rated to table 3 for matching relation between switch and fuse body.
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| Rated working
voltage(v) |
Rated working
current(a) |
Using
category |
Rated making and breaking capabitlity |
Rated fuse short-circuit current(KA)
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Making |
Breaking |
Operation
cycle index |
Current
effective value |
COS¦Õ |
| I/Ie |
U/Ue |
COS¦Õ |
I/Ie |
U/Ue |
COS¦Õ |
380 |
100
200
400
630 |
AC-21B |
1.5 |
1.05 |
0.95 |
1.5 |
1.05 |
0.95 |
5 order |
100 |
0.2 |
AC-22B |
3 |
0.65 |
3 |
0.65 |
100 |
AC-23B |
10 |
0.45 |
8 |
0.45 |
200
400
630 |
0.35 |
0.35 |
3 order |
660 |
100
200
315
425 |
AC-21B |
1.5 |
1.05 |
0.95 |
1.5 |
1.05 |
0.95 |
5 order |
50 |
0.25 |
AC-22B |
3 |
0.65 |
3 |
0.65 |
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| Rated working
voltage |
Using
category |
making |
Breaking |
| I/Ie |
U/Ue |
COS¦Õ |
I/Ie |
U/Ue |
COS¦Õ |
380 |
AC-23B |
1 |
1 |
0.65 |
1 |
1 |
0.65 |
660 |
AC-22B |
1 |
1 |
0.8 |
1 |
1 |
0.8 |
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| Application Between Switch and
fuse |
| Conventional free
air heating current(A) |
Fuse size |
Rated current of
fuse body(A) |
| 100 |
00 |
4,6,10,16,20,25,32,35
40,50,63,80,100,125,160 |
| 200 |
1 |
80,100,125,160,200,224,250 |
| 400 |
2 |
125,160,200,224,250,300,315,355,400 |
| 630 |
3 |
4,6,10,16,425,500,630 |
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| Note:When the switch is used in the motor
circuit, the rated current of fuse is allowed to be larger than the rated
working current of switch. |
| Outline and Installation Size |
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Mode |
Conventional free
air heating current |
Size(mm) |
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Amax |
Cmax |
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HR5-100/31 |
100 |
167 |
40 |
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HR5-100/30 |
180 |
40 |
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HR5-100/20 |
160 |
2C=80 |
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