... IP20), high breaking capacity, good reliability of sensitive action, convenient multi-pole assorting, long using life etc. They are mainly used for ... protection within the circuit of AC 50Hz, 230V in single pole, 400V in double, three & four poles of lighting distribution system ... )In; C(510)In; D(1015)In.3. No. of pole: 1p, 2p, 3p, 4p.4. Breaking capacity (see table1).table1Rated ...