This product is suitable for being used in circuit up to AC 660V or 440V and current 0.1 to 16A. It can be used for protection of overload and short circuit of 3-phase squirrel-cage motors, and starters of motors at full voltage. It is suitable to protect the motor from under voltage. It can also be used in operating AC single phase load and DC load. It can monitor the fuse switch disconnection or to act as protection for phase failure. This product range includes basic switch and 26 accessories. It complies with standard of IEC 60947-2.