By-Pass Disconnector Switch

The MSB Type By-Pass Disconnector Switch was developed to operate in distribution networks, at voltages of 15.27 and 38 kV and currents of 400 to 630A. 

Developed for transfer maneuvers in distribution networks for nominal voltages up to 38kV and nominal currents up to 630A.

They are normally used to maintain reclosers or voltage regulators, without interrupting the line.
Supplied with or without fixing bracket, for single or double crossheads and direct installation on metal structures.

Basically, they are built on top of U-profile bases in hot-dip galvanized carbon steel.
The insulators used are of the support type and may be supplied in polymeric material (Silicone HTV) or vitrified porcelain in gray color.

Polymeric insulators have superior performance in aggressive environments of high pollution and high salinity, drainage distance meets up to class “E – very heavy” of local pollution (SPL) and reduces the weight of the assembly.
The knives are made of high-conductivity electrolytic copper and arranged in parallel, giving much greater mechanical resistance to high short-circuit currents.
The contacts are of the high pressure self-cleaning type with stainless steel springs and safety locking devices.
The terminals are made of copper alloy with a tinned finish and NEMA drilling pattern.

They have an eye and hook for manual operation using a maneuvering pole or for using a load opening device (loadbuster).

Project in accordance with ABNT / ANSI / IEC standards.