Eaton ATC-900 - Specification Summary

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Instructional Booklet
Effective: March 2021 Page 11
Operation and Maintenance Manual,
Automatic Transfer Switch Controller, ATC-900
2.6 Specification Summary Refer to Table 3.
Table 3. ATC-900 Specifications.
Figure 6 . Dimensions. Depth of 3 .60 inches with DCT module installed.
PARAMETER SPECIFICATION
Power Isolation Requirements: • Control power for Source 1, J7-1,2 must be electrically isolated from control power for Source 2, J7-3,4.
• Similar for accessory I/O Module on J1-1,2 and J1-3,4 for S1 and S2 respectively.
Control Power: • 120 Vac (50/60 Hz)42mA-ac (operating range 65 to 160 Vac) or 24 Vdc (+/- 20%) at 213mA-dc with DCT Module
Power Consumption: • 20 VA
Environmental Conditions:
Operating Temperature • -4.0 to 158 F (-20° to 70°C)
Storage Temperature • -22°F to +176°F (-30°C to +80°C)
Operating Humidity • up to 90% Relative Humidity (non-condensing)
Enclosure Compatibility: • NEMA 12 (standard mounting)
• NEMA 4/4X (mounted with gasket between panel and device faceplate)
• NEMA 3R (outdoor)
• UV Resistant ATC-900 Faceplate
System Voltage Application: • 120 to 600 Vac (50/60 Hz) (single or three phase)
Voltage Measurements: • Source 1, Source 2 and Load (VAB, VBC, VCA for Three-Phase System)
Voltage Measurement Range: • 0 to 720 VAC RMS
Voltage Measurement Accuracy: • ±1%
Frequency Measurements: • Source 1 and Source 2
Frequency Measurement Range: • 40 to 80 Hz
Frequency Measurement Accuracy: • ±0.2 Hz
Applicable Testing: • UL Recognized Component including the I/O and DCT Modules
• Meets Seismic Requirements of Uniform and California Building Codes
(exceeding requirements of worst case Zone 4 levels) 3rd Quarter 2014
• Complies with UL 991 environmental tests
• Complies with IEC 61000-4-2, 61000-4-3, 61000-4-4, 61000-4-5, 61000-4-6, and 61000-4-11
• Complies with CISPR 11, Class B
• Complies with FCC Part 15, Subpart B, Class A
Front view
Side view
Top view
5.00 (127.0)
3.63 (92.1)
6.72 (170.7)
10.25
(260.4)
.50 (12.7) 2.10 (53.4)
9.31
(236.5)