Abb+ufes+manual _hot_ Here

: Often integrated alongside or into the UFES logic, utilizing optical sensors to detect the intense light flash of an arc fault. Primary Switching Elements

: Indicates a broken or severely bent fiber optic cable, or a dirty sensor lens. Inspect the entire run of the affected sensor path. abb+ufes+manual

: The QRU receives these inputs. It evaluates the logic within microseconds and sends a powerful electrical firing pulse to the UFEA actuators. : Often integrated alongside or into the UFES