GYW6 intelligent universal air circuit breakers are designed for AC 50Hz distribution networks with rated voltage up to AC690V and rated current from 200A to 6300A. They are used to distribute power and protect lines and power equipment against overload, undervoltage, short circuit, single-phase grounding and related faults.
Key Features
- Intelligent protection functions for selective and reliable low-voltage distribution protection.
- Open communication interface support for remote measurement, remote signaling, remote control and remote adjustment functions.
- Can be used as an isolating device when configured without intelligent controller and sensor.
- Low temperature rise, compact structure and integrated design are listed as product characteristics.
- Multiple contact-knife structure and thermal-magnetic protection function are listed in the catalog data.
- Conforms to GB/T 14048.2 and IEC 60947-2 for low-voltage circuit breakers.
Intelligent Controller
- Controller types include 2M ordinary intelligent type, 2H communication type, 3M liquid-crystal type and 3H liquid-crystal communication type.
- Protection functions include overload long-delay inverse time, short-delay inverse time, definite-time delay and instantaneous protection.
- Single-phase grounding protection is supported.
- Display functions include current display and voltage display when specified at ordering.
- Alarm, self-check and test functions include overload alarm, overheating self-check, microcomputer self-diagnosis and controller action testing.
Main Technical Data
| Model | Frame current | Rated working current | Rated working voltage | Poles |
|---|
| GYW6-1600 | 1600A | 200A, 400A, 630A, 800A, 1000A, 1250A, 1600A | AC400V / AC690V, 50Hz | 3P / 4P |
| GYW6-2500 | 2500A | 400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A | AC400V / AC690V, 50Hz | 3P / 4P |
| GYW6-3200 | 3200A | 2000A, 2500A, 2900A, 3200A | AC400V / AC690V, 50Hz | 3P / 4P |
| GYW6-4000 | 3200A | 3200A, 3600A, 4000A | AC400V, 50Hz | 3P / 4P |
| GYW6-6300 | 6300A | 4000A, 5000A, 6300A | AC400V, 50Hz | 3P |
Electrical Performance
| Item | Data |
|---|
| Rated insulation voltage Ui | 1000V |
| Rated impulse withstand voltage Uimp | 12kV |
| Power-frequency withstand voltage | AC50Hz 3500V for 1 minute |
| Full power interruption time | 12ms to 18ms without additional delay |
| Closing time | Maximum 60ms |
| Electrical life | 2000 operations |
| Mechanical life | 10000 operations without maintenance; 20000 operations with maintenance |
Installation Conditions
- Ambient air temperature upper limit is +70C; lower limit is -25C; 24-hour average value should not exceed +40C.
- Installation altitude should not exceed 2000m.
- Protection level is listed as IP30.
- Pollution degree is listed as III.
- Usage category is Class B.
