The Q series has a high level of standardization, serialization, and generalization. The three series have 28 basic specifications. Advanced design concept provides selection conditions with small size and large functions

Hr3 fuse type disconnector is suitable for short circuit protection and overload protection of cables and conductors in distribution system with AC 50 Hz, 380 V and rated current up to 1000 a. Under normal conditions, it can be used to manually turn on and turn off normal load current and overload current infrequently. Under short circuit conditions, it can be turned off by fuse.

Hr5 series fuse type disconnector is mainly used in distribution circuit and motor circuit with rated voltage of 380V and 660V (45 ~ 62Hz) and heating current up to 630A. It is used as power switch, disconnector, emergency switch and circuit protection, but it is generally not used to directly open and close a single motor.

Hr6 series fuse type disconnector is mainly used in distribution circuit and motor circuit with rated voltage of 380V and 660V (45 ~ 62Hz) and heating current up to 630A. It is used as power switch, disconnector, emergency switch and circuit protection, but it is generally not used to directly open and close a single motor.

Hr17 series fuse disconnector is a new product developed by our company. The rated insulation voltage is 800V, the rated working voltage is 690V, the rated working current is 630A, and the rated frequency is 50 Hz. It is suitable for power distribution circuits and motor circuits with high short-circuit current. It is used as power switch, isolating switch and emergency switch, and for circuit protection, but it is generally not used to directly open and close a single motor.

Hh15 series disconnector fuse group, QA and QP series disconnectors, switches are mainly used in power distribution circuit and motor circuit with high short-circuit current, as the main switch or master switch for manual infrequent operation. It is especially suitable for installation in advanced drawer type low-voltage complete sets.