Eaton's Cooper Power™ series compact twoposition loadbreak/loadmake switch is designed for use in transformer (mineral) oil, Envirotemp™ FR3™ fluid, or an approved equivalent fluidfilled “Class 1” pad-mounted transformers or distribution switchgear.
The switch mechanism uses a manually charged over-toggle stored spring assembly, which is independent of operator speed. The spring loaded activating mechanism ensures quick loadbreak or loadmake operation in less than one cycle. The two-position switch incorporates a double “O” ring shaft sealing system and two types of mounting systems, including a weld-in bracket assembly, and an easy to install ring mount system. Also incorporated into the switch mechanism are internal stops which restrict the handle orientation to only two positions.
The two-position switch is hotstick operable and requires minimal input torque to operate. The switch contacts are factory assembled and gaged to a predetermined spring pressure to ensure uniform contact pressure between the contacts and the blades.
The silver-plated copper blades are securely keyed between the vented rotor halves which ensure proper blade and contact alignment during switching. All of these features make the two-position switch a reliable, no-maintenance switch product.