Electric Power Generation

Riggs Cat

ATC-800 CONTROLLER

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Specification Summary

Rating Range
120 to 600V, single phase and three phase @ 50/60 Hz
Transfer Type
Switch application dependent
Switch Type
Switch application dependent
Input Control Voltage
120Vac (50/60 Hz) (operating range 65 to 160 Vac)
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Technical Summary

Rating Range
120 to 600V, single phase and three phase @ 50/60 Hz
Transfer Type
Switch application dependent
Switch Type
Switch application dependent

ATC Controller Specifications

Input Control Voltage
120Vac (50/60 Hz) (operating range 65 to 160 Vac)
Voltage Measurements of Utility
Source 1, Source 2 and Load
(VAB, VBC, VCA for Three Phase System)
Voltage Measurement Range
0 to 700 Vac
Voltage Measurement Accuracy
+/-1% of full scale
Frequency Measurements Of
Source 1 and Source 2
Frequency Measurement Range
40 Hz to 80 Hz
Frequency Measurement Accuracy
+/- 0.1 Hz
Undervoltage Dropout
Breaker Style 50 to 97% of Nominal System Voltage
Contactor Style - 78 to 97%
Undervoltage Pickup
(Dropout +2%) to 99% of Nominal System Voltage
Underfrequency Dropout Range
90 to 97% of Nominal System Frequency
Underfrequency Pickup Range
(Dropout +1 Hz) to 99% of Nominal System Frequency
Overfrequency Dropout Range
103 to 110% of Nominal System Frequency
Overfrequency Pickup Range
101% to (Dropout +1 Hz) of nominal system frequency
Operating Temperature Range
-20 to 70 degree C (-4 to +158 degree F)
Operating Humidity
Up to 90% Relative Humidity (non-condensing)
Enclosure Compatibility
  • NEMA 12 (std mounting)
  • NEMA 3R
  • UV Resistant Faceplate
  • Ratings

    System Voltage Application
    120 to 600 Vac (50/60 Hz) (single or three phase)
    Rating Range
    120 to 600V, single phase and three phase @ 50/60 Hz
    Transfer Type
    Switch application dependent
    Switch Type
    Switch application dependent
    Input Control Voltage
    120Vac (50/60 Hz) (operating range 65 to 160 Vac)
    Voltage Measurements of Utility
    Source 1, Source 2 and Load
    (VAB, VBC, VCA for Three Phase System)
    Voltage Measurement Range
    0 to 700 Vac
    Voltage Measurement Accuracy
    +/-1% of full scale
    Frequency Measurements Of
    Source 1 and Source 2
    Frequency Measurement Range
    40 Hz to 80 Hz
    Frequency Measurement Accuracy
    +/- 0.1 Hz
    Undervoltage Dropout
    Breaker Style 50 to 97% of Nominal System Voltage
    Contactor Style - 78 to 97%
    Undervoltage Pickup
    (Dropout +2%) to 99% of Nominal System Voltage
    Underfrequency Dropout Range
    90 to 97% of Nominal System Frequency
    Underfrequency Pickup Range
    (Dropout +1 Hz) to 99% of Nominal System Frequency
    Overfrequency Dropout Range
    103 to 110% of Nominal System Frequency
    Overfrequency Pickup Range
    101% to (Dropout +1 Hz) of nominal system frequency
    Operating Temperature Range
    -20 to 70 degree C (-4 to +158 degree F)
    Operating Humidity
    Up to 90% Relative Humidity (non-condensing)
    Enclosure Compatibility
  • NEMA 12 (std mounting)
  • NEMA 3R
  • UV Resistant Faceplate
  • System Voltage Application
    120 to 600 Vac (50/60 Hz) (single or three phase)