GT-137 Ground Trip Relay https://www.advancemining.com/repair/catalog/R20-50-242 https://www.advancemining.com/@@site-logo/logo-ams.jpg GT-137 Ground Trip Relay Manufacturer Name Manufacturer of the item Line Power Category Product category Ground Monitors:Miscellaneous Lead Image No image Lead Image Caption Settings Short name This name will be displayed in the URL. R20-50-242