The Schneider Electric Square D LV851101SP ERMS Switch Kit is a 24VDC electronic control accessory designed for equipment management and maintenance applications. It enables an Energy Reduction Maintenance Setting (ERMS), allowing compatible circuit protection equipment to operate with adjusted protection settings during maintenance activities. Commonly used with Schneider Electric sw... https://www.partshnc.com/schneider-electric-square-d-lv851101sp-erms-switch-kit-24vdc