ATC Diversified Electronics UOA-220-AFN Voltage Monitor
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ATC Diversified Electronics UOA-220-AFN is part of the UOA series family of phase/voltage monitors. The UOA monitor is designed to protect single phase equipment that is required to operate above a certain voltage minimum. The internal relay will energize when operating voltage is applied above the preset pick up voltage. The output relay will then de-energize when the voltage falls below the preset drop out voltage for a period longer than the release delay. The UOA series will then automatically reset when the line conditions return above the preset pick up voltage.