Product overview

Scope of application

HD series and HS series open knife switches and HD and HSII series disconnectors (hereinafter referred to as switches) are applicable to complete sets of power distribution devices with AC 50Hz, rated voltage up to 380V (type II series is 690V and below) and rated current up to 3000A, as infrequent manual connection and disconnection of AC and DC circuits or isolation. Of which:

1.1 the central handle type switch is mainly used in the power station without cutting off the circuit with current and is used as an isolating switch.

1.2 the side and front lever operating mechanism switch is mainly used in the front operation and front maintenance switch cabinet, and the operating mechanism can be installed on both sides of the cabinet.

1.3 the central front lever operating mechanism switch is mainly used in the switch cabinet for front operation and rear maintenance, and the operating mechanism is installed in the front.

1.4 side operation handle type switch is mainly used in power box.

1.5 the switch equipped with arc extinguishing chamber can cut off the appropriate current load, and other series of knife switches are only used as disconnectors.

Standards: GB 14048.3, IEC 60947-3.

Technical parameter