ATC UPA-130-GOV 30mm Power Alert Voltage Detector. The ATC power alert is UL and CSA rated. The ATC UPA-130-GOV Power Alert reduces the risk of electrical arc flash by pre-verifying the electrical isolation from outside of a control panel. Hard wired to the circuit breaker or main disconnect, the UPA lights whenever voltage is present. Engineered with redundant circuitry, the Power Alert is powered by the same voltage that it indicates.
The eight detector UPA-130-GOV visually alerts to the presence of dangerous AC or DC (Stored Energy) potentials occurring between any combination of the four monitored input lines (11, 12, 13, GND). Maximum voltages are 750 AC and 1000 DC. Two Amber LED indicators are assigned to each input line and are designated + and -. For each input line carrying an AC potential (bi-polar), both the + and - LEDs will be active. A DC or Stored Energy potential will illuminate the + LED for the positive line and the - LED for the negative line. The ON LED is Amber. ATC Part number is UPA-130-GOV
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