Arc protection devices
ImPR1_ESHubU-1 switching unit with ImPR1_ESensU-1 optical sensors is designated to detect a short circuit arc in distribution devices in a short period of time and to transmit information on a monitored section into relay protection and automatics devices (electromechanical, semiconductor, and microprocessor).
ImPR1_ESHubU-1 switches a control electrical signal if a specified illumination level is exceeded with the specified illumination increase rate in a zone where an optical sensor is installed.
ImPR1_ESHubU-1 can be supplied both independently and within the composition of ImPR1 microprocessor relay protection and automatics devices.
