Basler Electric BE4-27/59 Over/Under Voltage Relay, DIN rail mount, is a 120 V AC protective relay designed to monitor voltage levels and actuate an output when undervoltage or overvoltage conditions occur. It operates at 50/60 Hz and uses a 4A1N3 contact configuration. This device is intended for installation in electrical control panels to guard equipment against voltage excursions by providing a defined switching action at preset voltage thresholds.
