PAIR Motor Protection Relay The PAIR module is designed for use with induction motors that require protection against both overload and underload conditions. Overcurrent sensing with inverse time delay response Sensitive underload protection by power factor measurement Integral current transformer up to 32A Current range can be extended with external current transformers Adjustable start up and reset delays Permanent memory of tripped status in the event of power loss Indicator lamps for supply and tripped conditions Reset can be automatic, manual and both local and remote IP20 enclosure DIN rail mounting Typical applications include protection against dry pumping for submersible pumps