Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) - Manual (Page 127)

Rockwell Automation Publication 7760-UM001D-EN-P - October 2014 127
7760, 7761, 7762, and 7763 SMC Flex Specifications Appendix A
Table 47 - Medium Voltage Magnetically Actuated Vacuum Circuit Breaker: 10…12 kV
Description Specification
Voltage Ratings
(1)
Maximum Rated Voltage 12 kV
Basic Impulse Level (B.I.L.) Withstand– Phase to Ground, Phase to Phase (kV) 75
Rated Insulation Voltage 12 kV
Withstand Voltage at 50 Hz 28 kV
Frequency Ratings 50 / 60 Hz
Current Ratings
(1)
Rated Normal current (40 °C) 630 A
Rated Breaking Capacity (kA) (rated short-circuit breaking current symmetrical) 16, 20, 25, 31.5
Rated short-time withstand current (3s) (kA) 16, 20, 25, 31.5
Making Capacity (kA) 40, 50, 63, 80
Pole Distance (mm) 150
Opening Time (ms) 35…45
Arcing Time (ms) 10…15
Total Breaking Time (ms) 45…60
Closing Time (ms) 50…60
Operating Temperature (°C) -25…50 (with derating)
(1) The voltage and current ratings listed are valid up to 1000 m (3300 feet). Please refer to Controller Derating chart for ratings above this altitude.