Main technical parameters:
| TYPE | Rated voltage(KV) | Rated current(A) | Breaking current(A) | Impulse voltage(BIL) | Power frequency withstand voltage(KV) | Leakage distance(MM) | Weight(KG) | Dimensions(CM) |
| FCO-15 | 15 | 100 | 10000 | 110 | 40 | 300 | 6 | 38.5X34.5X10.5 |
| FCO-15 | 15 | 200 | 10000 | 110 | 40 | 300 | 6 | |
| FCO-14 | 24 | 100 | 6000 | 170 | 70 | 620 | 7.3 | 48X35X12 |
| FCO-14 | 24 | 200 | 6000 | 170 | 70 | 620 | 7.3 | |
| FCO-16 | 36 | 100 | 6000 | 170 | 70 | 850 | 10.5 | 72.5X44.5X18 |
| FCO-16 | 36 | 200 | 6000 | 170 | 70 | 850 | 10.5 |