AC-Powered, Phase Sequence Monitor
PAA/PLA - North Atlantic Industries (NAI)
NAI's PAA and PLA are AC-Powered, Phase Sequence Monitors that protect three-phase loads from damage due to phase reversals or phase absence. These sequence monitors are ideally suited for rugged defense and industrial applications.
Phase Sequence Monitor
-
product
Phase Monitors
NAI''s AC- and DC-powered Phase Monitors are used to protect three-phase loads from damage due to phase reversals or phase absence. Contacts may be used to disconnect the load or to operate alarm circuits or both. Upon application of power, the output relay energizes if all phases are connected and the phase sequence is ABC. If any phase becomes disconnected or if the phase rotation is abnormal, the relay immediately de-energizes. These monitors are specifically designed for rugged defense and industrial applications.
