NDG3VH-250 Series DC Disconnectors, Nader
Rated operational current Ie (A): DC 250A
Rated operational voltage Ue (V): DC1000/1500V
Poles: 2P
Certifications: UL, CCC, CE, TUV
Technical parameters:
| Rated current (A) | 200A, 225A, 250A |
| Number of Poles | 2P, 4P two-circuit |
| Rated voltage (V) | DC 1000V / DC 1500V |
| Rated insulation voltage Ui (V) | 1500V |
| Certification | UL CCC, CE, TUV |
| Standards | UL98B, GB/T 14048.1, GB/T 14048.3, IEC 60947-1, IEC 60947-3 |
| Rated short-circuit making capacity Icm (kA) | 10kA |
| Rated short-time withstand current Icw | ·UL: 10kA/50ms ·CCC, CE, TUV: 20kA/0.15s |
| Limiting short-circuit current (Iq) (fuse) | 30kA |
| Rated impulse withstand voltage Uimp (kV) | 12kV |
| Protection class | IP66 outside the switchgear , IP20 inside the switchgear |
| Operation method | Standard operation, side operation (side operation is an extended operation method) |
| Electrical endurance | 400times |
| Mechanical endurance | ·Standard operation：10000times ·Side operation：2000times(extended operation method) |
| Usage category | ·UL: UL98B ·CCC/CE/TUV: DC-21B/PV1 |
| Environmental Requirements | ROHS 2.0 |
| Operating torque(N.m) | ·Standard operation：7.5～12N.m ·Side operation4～6N.m |
| Wiring capability(M8) | ·CCC, CE, TUV: (NDG3VH-250) 120mm2copper wire 1 ·Auxiliary switch:0.75-2.5mm² |
| Terminal tightening torque (Tightening torque) | ·Main circuit:15N.m ·Auxiliary circuit:0.8 N.m |
| Environmental Requirements | ROHS 2.0 |
| Working conditions | ·Ambient Temperature: -40℃~+85℃ ·Storage Temperature: -40℃~+85℃ ·Altitude: ≤5000m ·When the ambient air temperature is +40℃, the relative humidity of atmosphere shall not be more than 50%. ·in a medium without explosion hazard, and the medium has no gas and conductive dust enough to corrode metals and destroy insulation; in a place without rain and snow ·pollution class: 3 |
| Installation | ·Mounting Orientation: Front-Mounted Rotary Handle Operation ·The installation types III and IV are applicable to the product. ·It should be installed in a place where there is no explosion hazard, no conductive dust, and no enough to corrode metals and damage insulation. Use M5 screws to fix the 4 feet of the isolation switch to the installation panel or switchgear. |
Outline and installation dimension
Packing and depositing:
·The material used for product packaging:
plastic bag sealing, silica gel desiccant, double corrugated paper for the box, and pearl cotton for the buffer
·Storage environment and period:
The product should be stored in a warehouse where the ambient temperature is -40°C to +75°C, the relative humidity (ambient temperature +25°C) is below 90%, and there is no acid, alkaline or other corrosive gas in the surrounding air. Storage, under the above conditions, the storage period shall not exceed 36 months from the date of manufacture.
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