Function and Usage
The NJR2-T series soft starter is suitable for three-phase 220V voltage level soft starters. It is based on advanced dual CPU control technology, controlling the thyristor module to achieve soft start and soft stop functions for (squirrel-cage) three-phase AC induction motors, and also has multiple protection functions including overload, input phase loss, load short circuit, start current limit timeout, overvoltage, and undervoltage. This product is mainly used in conjunction with complete control cabinets. When in use, it must be connected with corresponding specification bypass AC contactors. The product specifications cover 7.5 kW~160 kW (squirrel-cage) three-phase AC induction motors, and is an ideal replacement for traditional Y-△ starting and autotransformer voltage reduction starting.
Detailed Parameters
| Parameter Classification | Parameter Item | Parameter Value |
|---|
| 4.1 Power Supply Voltage | | 220V±33V; 50Hz±1Hz/60Hz±1.2Hz |
| 4.2 Starting Current | | Starting current limit from 0.5~5 times |
| 4.3 Ramp Down Time | | 0s~60s |
| 4.4 Soft Start Base Voltage | | 30%Ue~70%Ue |
| 4.5 Jolt Start Time | | 0.1s |
| 4.6 Environmental Requirements | Altitude above 1000 meters, capacity should be reduced accordingly, for every 100m increase above 1000 meters, current decreases by 0.5%; ambient temperature between -10℃ ~40℃; for every 1℃ increase above 40℃, current decreases by 2%; relative humidity not exceeding 95% (20℃ ~65℃); no condensation, no flammable or explosive gases, no conductive dust, and a well-ventilated indoor environment. | |
