The GYCM8LY series is a thermomagnetic leakage molded case circuit breaker with overcurrent protection and residual current protection. It supports leakage alarm and leakage alarm non-tripping options for distribution protection applications.
Main Features
- Thermomagnetic overcurrent release.
- Electronic leakage release.
- Residual current protection.
- Leakage alarm with trip or non-trip options.
- Frame currents from 125A to 1250A.
- 2P, 3P, and 4P versions depending on frame size.
- AC230V for 2P and AC400V for 3P/4P versions where listed.
- AC type residual action and Class A selective category.
Frame Ratings
| Frame | Rated current range | Poles | Rated operating voltage |
|---|
| GYCM8LY-125 | 16A-125A | 2P / 3P / 4P | AC230V for 2P; AC400V for 3P/4P |
| GYCM8LY-160 | 16A-160A | 2P / 3P / 4P | AC230V for 2P; AC400V for 3P/4P |
| GYCM8LY-250 | 100A-250A | 3P / 4P | AC400V |
| GYCM8LY-400 | 250A-400A | 3P / 4P | AC400V |
| GYCM8LY-630 | 400A-630A | 3P / 4P | AC400V |
| GYCM8LY-800 | 500A-800A | 3P / 4P | AC400V |
| GYCM8LY-1250 | 1000A-1250A | 3P / 4P | AC400V |
Common Technical Data
| Item | Specification |
|---|
| Rated insulation voltage | 1000V |
| Rated impulse withstand voltage | 8kV |
| Type of overcurrent release | Thermomagnetic |
| Leakage release type | Electronic |
| Rated residual action type | AC type |
| Selective category | Class A |
