Littelfuse 201A 3PH SPDT Dual Range Plug-In Line Voltage Monitor

The Littelfuse 201A 3PH SPDT Dual Range Plug-In Line Voltage Monitor protect HVAC and industrial electrical systems from damage. The device regularly check three-phase line voltage to find problem with lost or flipped phases plus and uneven voltage. The monitor system activates an SPDT relay to trigger either a system shutdown or an alarm response when it finds an abnormal condition. The device safeguards HVAC equipment by protecting its motors and compressors from voltage instability. The device helps avoid equipment breakdowns and extends its useful life while keeping operations safe by maintaining steady voltage levels. The product install easily through its plug-in design which help to protect important electrical systems from harm.