• Parameters

  • Details

  • Size&weight

  • Related

  • Video

  • Message

Scope of application

HR6 series fuse type isolation switch (hereinafter referred to as switch) is mainly used as power switch, isolation switch, emergency switch in the distribution circuit and motor circuit with high short circuit current, rated voltage AC 400V and 660V (45~62Hz), conventional thermal current to 800A, and for circuit protection. But it does not normally open or close a single motor directly. The switch conforms to the IEC60947-3, GB14048.3.

Model and meaning

Structure characteristics

The switch consists of a base, a cover, an arc chute and others, all of which are made of arc-resistant plastic and are all-plastic structures. The static contact is directly installed on the base, and the arc chute is easy to disassemble and install. Each arc chute has two parts, the inner chamber and the outer chamber, and uses a plurality of metal arc extinguishing grids to enhance the arc extinguishing ability and improve the contact life.
The NT type fuse link is mounted in the cover, and the cover can rotate along the support member in a fan-shaped manner, and has a large electrical isolation distance to meet the requirements of the isolating switch. The cover can be easily detached from the base, so that it is very easy to install and replace the fuse link. Convenience. There are two sets of mounting holes on the base to meet the requirements for installation in various switch cabinets and panels. On both sides of the switch, auxiliary contact can be installed as required, and sends out signals indicating the on-off state of the switch.

Main parameters and technical performance

The relationship between the switch and the fuse (see Table 1)

Conventional thermal current (A) Fuse model Rated operational voltage (V) Fuse current (A)
160 NT00, RT16-00 380 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, RT16-1 380 80, 100, 125, 160, 200, 224, 250
660 80, 100, 125, 160, 200
400 NT2, RT16-2 380 125, 160, 200, 224, 250, 300, 315, 355, 400
660 125, 160, 200, 224, 250, 300, 315
630 NT3, RT16-3 380 315, 355, 400, 425, 500, 630
660 315, 355, 400, 425
800 CRT3 380 630, 800
660 630
Main Technical Parameters
Model HR6-160 HR6-250 HR6-400 HR6-630 HR6-800
Rated insulation voltage (V) 800 800 800 800 800
Conventional thermal current (A) 160 250 400 630 800
Rated operational current (A) 380V 160 250 250 630 800
660V 100 200 315 425 630
Rated connection and breaking capacity (A)
(1.05Ue)
380V, COSΦ=0.35, AC23B ON 1600 2500 4000 6300 6300
OFF 1280 2000 3200 5040 5040
660V, COSΦ=0.65, AC22B ON 480 750 1200 1890 1890
OFF 480 750 1200 1890 1890
Maximum prospectie peak current (kA) 100 100 100 100 100
NT Fuse Size 00 1 2 3 3
Pollution level 3 3 3 3 3
Installation category
The auxiliary switch's rated voltage is AC 400V, conventional thermal current is 6A, the use category is AC-15, and the rated control capacity is 300VA.

Normal working conditions

1. The ambient air temperature is not higher than +40°C and not lower than -5°C.
2. The elevation of the installation site does not exceed 2000m.
3. Humidity: When the maximum temperature is +40°C, the relative humidity of the air does not exceed 50%, and higher relative humidity may be allowed at lower temperatures, for example, 90% at 20°C. Special measures should be taken for the occasional condensation caused by temperature changes.
4. The pollution level of the surrounding environment is 3.
5. The switch shall be installed in a place where there is no significant shaking, shock and vibration and there is no rain and snow. At the same time, there shall be no dangerous medium for explosion at the installation site, and there shall be no gas and dust in the medium that can corrode metal and destroy insulation.

Outline and Installation Dimensions

Model Outline Dimension (mm) Installation Dimension (mm)
A B C D E a b c d Φe Φf
HR6-160/30 134 215 142 245 40 80 198 80 40 Φ6.5 Φ6.5
HR6-250/30 184 280 162 320 60 120 260 120 60 Φ8.5 Φ8.5
HR6-400/30 220 30 194 360 72 144 280 144 60 Φ8.5 Φ8.5
HR6-630/30 244 300 194 360 80 160 280 160 60 Φ8.5 Φ8.5

view and download

File name(Click to view)File typefile sizeView timesClick to download

Product related news

News titlePromulgatorRelease timeView timesClick to read