DSOP-I-200/012/CM and DSOP-I-200/013/BCM over-voltage protector for distribution system adopts several kinds of Arrow’s patents, and is over-voltage protector combined B and C poles designed according to IEC. It is designed to protect low voltage 3-phase power distribution systems. The system has high current-passing capacity and low residual voltage. It is equipped with power indicator, audible and visible alarm, an indicator showing when a phase is missing, lightning strike counter and remote communication I/O. the modular design allows replacement of one or more modules without interrupting the power supply. It is suitable for installment in B+C protection situation, which requires high current-passing capacity, and low residual voltage.
　　DSOP-I-120/014/BC and DSOP-I-160/BC over-voltage protector is high-performance surge protector equipped with small-sized breaker. It adopts the 3+1 structure. It uses voltage-limited and high-current-passing-capacity module between phase line and center line, and uses switch-type module with high current-passing capacity, in order to protect electrical equipments from strike coming from transient over-voltage. The above two equipments combine various kinds of Arrow’s patented technologies, and can automatically disconnect from system if over-heating occurs, and also have back-up current protection equipment. It is small in size, has high current-passing capacity, low grade-limited-voltage, and it is easy in installation. It is equipped with power indicator, audible and visible alarm, lightning strike counter and remote communication I/O. It is modularly designed, which enables it to replace modules without interrupting the current. It is suitable for situation requiring high current-passing capacity, and low limited voltage.
　　DSOP-I-120/008/CO,DSOP-I-120/009/O,DSOP-I-120-220/020/CO, and DSOP-I-120-220/021/O
are high-performance over-voltage protectors, which are used for protecting equipments from the damage of transient over-voltage. The correct installation plays an important role in the normal function of over-voltage protector for distribution systems. This equipment has high current-passing capacity, low grade-limited-voltage, and has the ability of malfunctioning warning, remote communication, counter for lightning strike. It has metal cover, and good at sealing performance. It also has good shape, easy for installation, and water-and-dust-resistant, anti-corrosive and flame retardant.