General
The NDQ3A Automatic Transfer Switching Equipment (ATSE) comprises two integrated components: a robust device body and an advanced intelligent controller. The device body features two electric-operated circuit breakers (specific models detailed in technical parameters), complete with auxiliary alarm contacts, mechanical interlocking mechanisms, and electrical interlock terminal blocks, all securely mounted on a durable metal plate. The intelligent controller employs an innovative single-chip design with comprehensive output modules, forming a sophisticated control system when connected via ≤2m shielded cables to the aerial plug port, operating at 220V, 50/60Hz.
Engineered for maximum reliability, the ATSE system provides dual mechanical-electrical interlocking protection to ensure uninterrupted power supply. Its versatile design supports seamless automatic power transfer across single-phase 220V, three-phase three-wire, and three-phase four-wire electrical systems, delivering optimal performance in diverse power distribution scenarios.
Structure and properties
| Frame size B | 100 | 225 | 400 | 630 |
| Rated working current | 10/16/20/32/40/50/63/80/100A | 125/140/160/180/200/225A | 250/315/350/400A | 500/630A |
| Rated working voltage | AC400V |
| Controling voltage | AC220V |
| Rated Insulation voltage | 1000V |
| Transfer time | ≦3S |
| Frequency | 50/60HZ |
| ATS Level | CB Class |
| Standard | GB/T14048.11 |
| environment temperature | 5 degrees Celsius~40 degrees Celsius |
| temperature | -5°C~+40°C |
| altitude | ≤2000 m |
| Class of pollution | 3 |
| Controller | Type B (basic type) |
| Rated control supply voltage Us | 230V 50Hz |
| Installation mode for thecontroller | Integrated/separated (as installed on the surface of the cabinet) |
| Power consumption | ≤10W |
| Installation mode | Fixed type |
| Connection mode | Front connection |
Yueqing Lovadon Electric Co., Ltd.
