Product Description
Cat. No. AA115LPK is an alarm signal lockout switch (AL/LO aux SW) auxiliary contact switch #1494D37G02 used in Cutler-Hammer ND-frame models. This alarm switch indicates breaker status and is used for remote signaling and system interlocking purposes. These Cutler-Hammer lockout switches are necessary for reporting the operating status of machinery or equipment running. Without these signal type switches, a person would have to manually walk to equipment and verify status.