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ArcHorn (Not an Interrupter)
The ArcHorn is not an interrupter and has no ratings. It is used as an arc deflecting mechanism to save the life of switch blades and contact clips. The ArcHorn, also known as “sacrificial arcing horn”, is the first point of contact during switch closing operations. The initial making current during a closing operation creates small arcs; pitting the arc horns. This “sacrificial” mechanism helps prevent degradation of the main contacts. The ArcHorn is used to redirect the arc resulting from residual or stored charge left after a down-line circuit is opened. ArcHorns will not prevent damage from the inadvertent opening of a loaded switch.
LineBOSS™ Selection Guide suffix “A”