MCB Hydraulic magnetic mini circuit breaker is mainly suitable for overload and short circuit protection.
- It adopts hydraulic magnetic trip instead of bimetal. So it has a high sensitivity and the ambient temperature does also not affect it.
- It is especially used for illumination and distribution in industry and commerce.
- They are mainly used for overload and short circuit protection within the circuit of AC 50/60Hz, rated voltage of single pole or double poles up to 240V, three poles up to 415V.
- They can also be used for an unfrequented switchover of the circuit and illumination under normal conditions. They comply with IEC 157-1973 BC4752-1977 and BS 3871.



| Standard | Rated Current (A) | Pole | Rated Volatage (V) | Breaking capacity (A) | |
| SA-G3 | SF-G3, SX-G3 | ||||
| IEC157-Bs3871 | 3, 5, 6, 10, 16, 20, 25, 32, 40, 50, 63 | 1 | 230/240 | 3000 | 6000 |
| 2, 3 | 400/415 | 3000 | 6000 | ||








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