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Introduction 3
1.1.2 Electrical Specifications
• Nominal input voltage
120 or 208 volts single phase 2W+G, 60 Hz
220, 230, or 240 volts single phase 2W+G, 50 Hz
208/120 volts single phase 3W+G, 60 Hz
208 volts three phase, 3W+G, 60 Hz
208/120 volts three phase, 4W+G, 60 Hz
380, 400, or 415 volts three-phase 3W+G, 50 Hz
380/220, 400/230, or 415/240 volts three phase 4W+G, 50 Hz
Solidly grounded power sources
• Branch circuit breaker rating
15, 20, 30, or 60 amps, 60 Hz
13, 25, or 50 amps, 50 Hz
• Maximum continuous current
12, 16, 24, or 48 amps, 60 Hz
13, 25, or 50 amps, 50 Hz
• Load power factor range: 0.5 to 1.0, leading or lagging.
• Load crest factor: up to 3.5.
• Source voltage distortion: up to 10% THD.
• Overload capability: 125% of continuous current for 2 hours, 1000% for 2 cycles minimum.
• Overcurrent Protection: External overcurrent protection provided by the supply branch cir-
cuit breakers.
• Short circuit withstand capability: up to 20,000 symmetrical amps, protected by internal fus-
ing.
• Withstands Transient Voltage Surges up to 6 kV as defined by IEEE C62.41 for Category A3.
• Meets FCC Part 15 Class A Emission Limits.
• ETL Listed under UL Standard 1008.
• 50 Hz units are CE marked for compliance with the EMC and Low Voltage Directives.
• Redundant Control Power Supplies.
• Integral Maintenance Bypass.
• Eight Isolated Normally Open, Form A Switch Status Contacts.
• RS-232 Communications Port
• Hot-Swap, Plug-In Electronics Module.
1.1.3 Environmental Specifications
• Storage temperature range: -40° to +60°C
• Operating temperature range: 0° to 40°C.
• Relative Humidity: 0 to 95% without condensation
• Operating Altitude: up to 5000 feet (1500 meters) above sea level without derating.
• Storage/Transport Altitude: up to 40,000 feet (12,000 meters) above sea level.
• Audible Noise: less than 45 dBA at 5 feet (1.5 meters).