Low Voltage NH Fuse Switch
The low voltage nh fuse switch is applicable to high short circuit with AC 50(60)Hz, rated voltage 400V/690V, and rated current up to 630A. It could use as power switch, isolating switch and emergency switch and for protecting current. Their contacting parts are used copper T3 and the cover is…
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- The low voltage nh fuse switch is applicable to high short circuit with AC 50(60)Hz, rated voltage 400V/690V, and rated current up to 630A.NH-fuse disconnecting switches single-phase break simultaneously,upper/lower end connection
For NT and NH fuse links
According to EN 60947-1 and EN 60947-3
Rated voltage:690V AC
Rated currents:160A,250A,400A/630A
Rated insulation voltage :size NH00 to NH3 AC 750V
Degree of protection IP 20 with operational status,IP 10 with open slewing equipmentElectrical Parameter DNH18-630 DNH18-400 DNH18-250 DNH18-160 Rated Operating Voltage Ue V AC400 AC500 AC690 AC400 AC500 AC690 AC400 AC500 AC690 AC400 AC500 AC690 Rated Operating Current Ie A 630 630 500 400 400 315 250 250 200 160 160 125 Conventional Heating Current Ith A 630 630 500 400 400 315 250 250 200 160 160 125 Rated ;Limit Short-Circuit Current (With Fuse) KA 100 100 50 100 100 50 100 100 50 100 100 50 Use Level (With Fuse) AC-23B AC-22B AC-21B AC-23B AC-22B AC-21B AC-23B AC-22B AC-21B AC-23B AC-22B AC-21B Rated Impulse Withstand Voltage Hz 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60 Electrical Life 200 200 200 200 200 200 200 200 200 500 500 500 
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1. LV fuse switch | from size NH 00 to NH 1/2/3. These fuse switches can contain the entire Pronutec accessories and terminal series. Each fuse switch contains three current transformers.
2. Low-voltage current transformer | The device includes three current transformers and voltage taps per phase. Current transformers with different current ratios are available, based on fuse switch amperage.
- The low voltage nh fuse switch is applicable to high short circuit with AC 50(60)Hz, rated voltage 400V/690V, and rated current up to 630A.NH-fuse disconnecting switches single-phase break simultaneously,upper/lower end connection
