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HR6 Series Fuse Type Isolating Switch
Application
    HR6 series fuse type isolating switch are mainly used in rated voltage AC 380V and 660V(45-62Hz), conventional free air heating current to 630A power distribution and motor circuit, which possess high short circuit, used as power supply switch, isolating switch, emergency switch and for circuit protection. Usually not used as open/close every single motor.
Model and Definition
Structural Features
The switch is composed of base, cover and interrupter, made from arc resistance plastic, all plastics structure. The static contact is install on the base, the interrupter is easy to remove and mount, each interrupter has inside & outside room, adopts multi-chip metal are extinguishing grating, increased the are ability, also improved the lifetime for contact.
The fuse-link of NT mode is installed inside the cover, the cover can rotate as a fan along with the holder, a big isolating distance to satisfy the demand of isolator switch, the cover can be removed from the base easily, so it¨s easy to install and change the fuse-link. 2 mounting holes on the base, to satisfy the demand of all kinds of switchgear and panels. Two sides of the switch, can install assistant contact, and dispatch the pilot switch close and open state signal.
Main Technical Data
The adapting relation between switch & fuse-link
Conventional free
air heating
current of switch(A)
Fuse body
size
Rated working voltage (V)
Rated current of
fuse body(A)
160
NT00
380
  4、6、10、16、20、25、32、35、40、50、63、80、100、125、160
660
  4、6、10、16、20、25、32、35、40、50、63、80、100
250
NT1
380
  80、100、125、160、200、224、250
660
  80、100、125、160、200
400
NT2
380
  125、160、200、224、250、300、315、355、400
660
  125、160、200、224、250、300、315
630
NT3
380
  315、355、400、425、500、630
660
  315、335、400、425

Main Technical Data

Model HR6-160 HR6-250 HR6-400
HR6-630
Rated isolating voltage(V) 660 660 660 660
Conventional free air heating current(A) 160 250 400 630
Rated working urrent(A) 380V 160 250 400 630
660V 100 200 315 425
Rated connecting & breaking ability(A)(1.05Uetime) 380V, COS φ= 0.35 AC23B
Connect 1280 2000 3200 5040
Break 960 1500 2400 3780
660V, COS φ= 0.65 AC22B Connect 480 750 1200 1890
Break 480 750 1200 1890
Rated fuse short circuit current kA 50 50 50 50
Max expectating peack current kA 100 100 100 100
Pollution Class 3 3 3 3
Mounting classes
Assistant switch rated voltage AC 380V.

Outline and Installation Size
Type
Dimensions (mm)
Installation dimensions(mm)
A
B
C
D
E
a
b
c
d
фe
фf
HR6-160/30
134
215
142
245
40
80
198
80
40
ф6.5
ф6.5
HR6-250/30
184
280
162
320
60
120
260
120
60
ф8.5
ф8.5
HR6-400/30
244
300
194
360
80
160
280
160
60
ф8.5
ф8.5
HR6-630/30
244
300
194
360
80
160
280
160
60
ф8.5
ф8.5
 
   
 
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