Function and Application
The HR3 series fuse-type isolating switch is suitable for use in AC 50Hz, 380V distribution systems with a rated current up to 1000A, as a short-circuit protection and overload protection for cables and conductors. Under normal conditions, it can be used to manually connect and disconnect normal load currents and overload currents without frequent operations. In the event of a short circuit, the fuse will break the current, but it is generally not used for directly opening and closing individual motors.
Details Parameters
| Parameter Classification | Parameter Item | Parameter Value |
|---|
| Model | HR3-100 |
| Rated Operating Voltage Ue V | 380 |
| Rated Insulation Voltage Ui V | 690 |
| Agreed Heating Current Ith A | 100 |
| Rated Operating Current Ie A | 100 |
| Fuse Model | RT0-100 |
| Rated Limiting Short Circuit Current KA | 50 |
| Model | HR3-200 |
| Agreed Heating Current Ith A | 200 |
| Rated Operating Current Ie A | 200 |
| Fuse Model | RT0-200 |
| Rated Limiting Short Circuit Current KA | 50 |
| Model | HR3-400 |
| Agreed Heating Current Ith A | 400 |
| Rated Operating Current Ie A | 400 |
| Fuse Model | RT0-400 |
| Rated Limiting Short Circuit Current KA | 50 |
| Model | HR3-600 |
| Agreed Heating Current Ith A | 600 |
| Rated Operating Current Ie A | 600 |
| Fuse Model | RT0-600 |
| Rated Limiting Short Circuit Current KA | 50 |
| Model | HR3-1000 |
| Agreed Heating Current Ith A | 1000 |
| Rated Operating Current Ie A | 1000 |
| Fuse Model | RT17-1250/1000 |
| Rated Limiting Short Circuit Current KA | 50 |
