With excellent structure and extensively proved high quality, it is mainly used for overload and short-circuit protection as well as infrequent on-and

With excellent structure and extensively proved high quality, it is mainly used in circuit of AC 50Hz / 60Hz, 230V for 1 pole and 400V for 2, 3, 4 pol

With excellent structure and extensively proved high quality, it is mainly used in AC 50Hz / 60Hz, single-pole 230V or two, three, four-pole 400V circ