AC Voltage Monitors

Monitors & Flashers

NAI designs and manufactures a wide variety of COTS and Custom Power Monitors, Time Delay Relays, and Flashers specifically designed for rugged defense and industrial applications.

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NAI''s Power Monitors are used to monitor voltage, frequency, phase characteristics, or phase rotation of single- and three-phase power lines. Specifically designed for rugged defense and industrial applications, these Power Monitors meet the most stringent performance and environmental requirements.

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Phase Monitors

North Atlantic Industries

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.

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Flashers

North Atlantic Industries

NAI's Aircraft Warning, Navigation Light, and Position Light Flashers are general purpose, solid state, and low-current units. Designed for airbourne use, these units conform to all military specifications. All components are mounted within the fully encapsulated and hermetically sealed flasher assembly

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AC-Powered, AC Voltage Monitor

VAA/VQA - North Atlantic Industries

NAI’s VAA and VQA are AC-Powered, AC Voltage Monitors used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits. These voltage monitors are ideally suited for rugged defense and industrial applications.

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AC Voltage Monitor, 3 Phase Delta Power

DAA - North Atlantic Industries

NAI’s DAA is an AC-Powered, Voltage Monitor used to continuously measure voltage on three-phase Delta power lines. This allows normal operation of system loads when the voltage characteristics are within pre-determined limits. The DAA voltage monitor is ideally suited for rugged defense and industrial applications.

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AC-Powered, AC Voltage Monitor, Adjustable

VMA - North Atlantic Industries

NAI’s VMA is a field-adjustable, AC-Powered, AC Voltage Monitor used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits.High and low voltage limits, and "pick-up" and "drop-out" time delay are field-adjustable. The VMA voltage monitor is ideally suited for rugged defense and industrial applications.

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DC-Powered, AC Voltage Monitor

VAD/VQD - North Atlantic Industries

NAI’s VAD and VQD are DC-Powered, AC Voltage Monitors used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits. These voltage monitors are ideally suited for rugged defense and industrial applications.

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AC Voltage Monitors

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