| Brand | Switchgear parts |
| Model NO. | HR6 series fuse Isolating switch 160A-800A |
| Rated voltage | AC 400V/AC 690V |
| Rated normal current | 160A |
| Rated frequency | 50/60Hz |
| Series | HR6 |
The fuse Isolating switch is composed of base, cover, arc extinguishing chamber and other parts, all of which are made of arc resistant plastic with full plastic structure.
The static contact is directly installed on the fuse Isolating switch base, so the arc extinguishing chamber is easy to disassemble and assemble.
Each arc extinguishing chamber has two parts: an inner chamber and an outer chamber. Multiple metal arc extinguishing grids are used to enhance the arc extinguishing ability and improve the contact life.
The NT type fuse link is installed inside the cover. The cover can be fan-shaped, rotated along the supporting elements.
It has a large electrical isolation distance to meet the requirements of the disconnector. The cover can be easily removed from the base, making it easy to install and replace the fuse link.
There are two sets of installation holes on the bottom seat, which can meet the installation requirements in various switch cabinets and on the panel.
On both sides of the switch, auxiliary contacts can be installed as required to send signals indicating the on-off state of the switch.
A disconnect switch fuse Isolating switch is a switching device that switches/isolates loads and distribution boards manually.
It is capable of making, carrying and breaking the specified rated current (including specified overload).
It protects backward electrical loads, safely disconnecting all electrodes and electrical components from the power supply under load.
In addition to the protection provided by the fuse, the Fused disconnect switch also has the characteristics of a load switch and an isolating switch.
It consists of three groups of switchblades and plastic bodies, each group of switchblades constitutes a double break for each phase. There is a gap reserved for bridging fuses in the centre of each set of blades.
The disadvantage of this arrangement is that when the switch is turned on to replace the fuse, the circuit connected to the fused disconnect switch may still have leakage current,
so electricians should use professional protective equipment such as insulating gloves, hard hats, etc. when they replacing the fuse.
Main technical parameters
Matching relationship between switch and fuse link
| Agreed thermal power generation (A) | Model of flame breaker | Rated working voltage (v) | Melt current value (A) |
| 160 | NT00、RT16-00 | AC-23B 400 | 2,4,6,10,16,20,25,32,40,50,63,80,100,125,160 |
| 160 | NT00、RT16-00 | AC-22B 690 | 2,4,6,10,16,20,25,32,40,50,63,80,100 |
| 250 | NT1、RT16-1 | AC-23B 400 | 40,50,63,80,100,125,160,200,225,250 |
| 250 | NT1、RT16-1 | AC-22B 690 | 40,50,63,80,100,125,160,200 |
| 400 | NT2、RT16-2 | AC-23B 400 | 160,200,250,300,315,350,400 |
| 400 | NT2、RT16-2 | AC-22B 690 | – |
| 630 | NT3、RT16-3 | AC-23B 400 | 315,400,500,630 |
| 630 | NT3、RT16-3 | AC-22B 690 | 315,400,500 |
| 800 | NT3、RT16-3 | AC-23B 400 | 315,400,500,630,800 |
Switch technical parameters
| model | HR6-160 | HR6-250 | HR6-400 | HR6-630 | HR6-800 |
| Rated insulation voltage (V) | 1000 | 1000 | 1000 | 1000 | 1000 |
| Agreed heating current (A) | 160 | 250 | 400 | 630 | 800 |
| Rated working current (A) | 160 | 250 | 400 | 630 | 800 |
| Rated limiting short-circuit current (KA) | 50 | 50 | 50 | 50 | 50 |
| Size of matched fuse | 00 | 1 | 2 | 3 | 3 |
| class of pollution | 3 | 3 | 3 | 3 | 3 |
| Installation category | III | III | III | III | III |
Note: The rated voltage of auxiliary switch is AC 380V, the agreed heating current is 5A, the use category is AC-15, and the rated working power is 300VA
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