HH15 series isolation switch fuse group
Short Description:
HH15 series of disconnector-fuse units, HA and HP series of disconnectors (hereinafter referred to as switch), the switch is used in distribution circuits and motor circuits with high short-circuit current, as the main switch or general switch for manual infrequent operation. It is particularly suitable for installation in highergrade drawer-type low-voltage complete units.
Model Meaning：
Product details
Product Overview:
HH15 series of disconnector-fuse units, HA and HP series of disconnectors (hereinafter referred to as switch), the switch is used in distribution circuits and motor circuits with high short-circuit current, as the main switch or general switch for manual infrequent operation. It is particularly suitable for installation in highergrade drawer-type low-voltage complete units.
Model Meaning：
Product Features:
The switch is of full-cover, enclosed structure to ensure greater working reliability and stable performance: it has a unique rolling plug-in contact system Each phase has two sets of such double-break contacts, and the two sets of contacts are connected either in series or in parallel, to meet the requirements of circuits of different current and different classes of work. The contact system allows the current to pass through several rollers respectively, and the result is that the electrodynamic force acting on each roller is greatly reduced During the movement, the contact between the roller and the static contact is both rolling and sliding friction, which can effectively prevent welding. The operating mechanism is provided with a storage spring so the speed of the moving contact group is independent of the magnitude of the operating force and the operating speed. The operator is composed of a handle mounted on the panel, a driving shaft joint meshing with the handle, an extending shaft, an edge shaft and a driving shaft. The extending shaft and the coupling are only used when the driving shaft is too short The depth of installation of the switch in the cabinet of the complete set of devices can be considered according to the needs of the combined installation of various electrical elements, and there is a range of movement.
