HR5 Series Fuse Type Isolating Switch

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


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 .
B.The average temp .value shall not exceed + 35 witch 24 hours.
Note:Referring to the working condition that lower limit of ambient air temp. is -10 or -25, 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,relative humidity of air shall not exceed 50%.Higher relative humidity such as 90% at the temperature of 20 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.


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.


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.

Rated working
voltage(v)
Rated working
current(a)
Using
category
Rated making and breaking capabitlity
Rated fuse short-circuit current(KA)
Making
Breaking
Operation
cycle index
Current
effective value
COS
I/Ie
U/Ue
COS
I/Ie
U/Ue
COS
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
 
Rated working
voltage
Using
category
making
Breaking
I/Ie
U/Ue
COS
I/Ie
U/Ue
COS
380
AC-23B
1
1
0.65
1
1
0.65
660
AC-22B
1
1
0.8
1
1
0.8
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
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
Mode
Conventional free air heating current
Size(mm)
Amax
Cmax
HR5-100/31
100
167
40
HR5-100/30
180
40
HR5-100/20
160
2C=80

All 26 page Top Next     
Copyright © LRC ELECTRIC&PLASTIC CO.,LTD.
MADE AND HELP:YUHUAN