The undervoltage accessory is an electronic module which provides remote control capability to open the circuit breaker when the voltage supplied to the accessory drops below 70% of its rated value.

GE Industrial Solution Undervoltage Release, Field Installed, 250 VDC, For Use With: TEB, TEC, TB1-B5, TED, THED, THLC1, E150 Molded Case Circuit Breaker

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/GE_FVK3100E_Catalog.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/GE_FVK3100E_Catalog.pdf
• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_2fb18cf6686a2794e7cd4716021316d972bf9bad6e782e6b86fdefafb6483f03.pdf https://www.iesbuy.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/IDW_DOCUMENT_2fb18cf6686a2794e7cd4716021316d972bf9bad6e782e6b86fdefafb6483f03.pdf