1.General
NDQ2 series dual power automatic transfer switch is suitable for AC 50/60Hz dual power supply system with rated operating voltage of 400V and rated operating current from 16~63A. Optional transfer of dual power can be made according to requirement.
NDQ2 series dual power automatic transfer switch with improved detection protection, it uses high-speed single- chip microprocessor as the main chip embedded, real-time detection of power supply status, power supply system to ensure reliable operation of high speed.
1.Mechanical interlock and electrical interlock with the double protection to prevent the closing of two circuit breakers at the same time.
2.With Manual control Automatic recovery Common power supply Standby power Power button again Since the vote of no self-re-6 operation control method.
3.With under voltage, over voltage, phase loss protection function to prevent the power supply to load fault.
4.A power failure, circuit breaker trips, such as failure of the alarm or indicator.
5.Secondary function of preventing reclosing The load side short circuit, overload, automatic switch off electrical appliances (tripping), you can not automatically switch on their own.
2.Structure and properties
1. reasonable structure, minimum volume, beautiful appearance, equipped with protective cover, power supply is more safe and reliable.
2. the protection function is complete, with short circuit, overload, lack of phase, under-voltage protection.
3. EPS fire power supply interface, DC12-24 can be reliable long-distance double points.
4. no noise operation, energy saving and consumption reduction, easy installation, simple operation, reliable and stable performance.
3. Specification
| Standard | IEC60947-1 |
| Model | NDQ2-63/2P . NDQ2-63/4P |
| Rated working current | 6A,10A,16A,20A,32A,40A,50A,63A |
| Frequency | 50/60HZ |
| Rated insulation voltage Ui(V) | AC500V |
| Control voltage of transfer switch | AC230V |
| transfer time | ≤1.2S |
| Rated short-circuit breaking capacity | 4.5kA |
| Rated short-circuit connecting capacity | 4.5kA |
| Mechanical life of transfer switch | 3000 times |
| electric life | 1500 times |
| the ambient temperature | -5℃-40℃ |
| The altitude of installation site | ≤2000M |
| Pollution calss | class III |
| Grage of electrical | Grade CB |
| Utilization categor | AC-33iB |
| Rated operating voltage (Ue) | 220V(2-pole), 380V(3-pole,4-pole) |
| Rated frequency | 50Hz |
| Making and Breaking Capacity |
| Utilization Category | I/Ie | U/Ue | CosΦ | Electrical time(s) | Duration of cycle(min | Number of operating cycles |
| AC-33B | 6 | 1.05 | 0.5 | 0.05 | ≤5 | 12 |
| Note:AC-33B motor load or combined load including motor and resistance load under infrequent operation condition |
Yueqing Lovadon Electric Co., Ltd.
