Appendix A - Allen-Bradley 7760 User Manual

Table 47 - Medium Voltage Spring Actuated Vacuum Circuit Breaker: 10...12 kV
Attribute
(1)
Voltage Ratings
Maximum Rated Voltage
Basic Impulse Level (B.I.L.) Withstand– Phase to Ground,
Phase to Phase (kV)
Rated Insulation Voltage
Withstand Voltage at 50 Hz
Frequency Ratings
(1)
Current Ratings
Rated Normal current (40 °C/104 °F)
Rated Breaking Capacity (kA) (rated short-circuit breaking
current symmetrical)
Rated short-time withstand current (3s) (kA)
Making Capacity (kA)
Pole Distance (mm)
Opening Time (ms)
Arcing Time (ms)
Total Breaking Time (ms)
Closing Time (ms)
Operating Temperature (°C/°F)
(1) The voltage and current ratings that are listed are valid up to 1000 m (3300 ft). See Controller Derating chart for ratings above this
altitude.
Rockwell Automation Publication 7760-UM001F-EN-P - March 2016
7760, 7761, 7762, and 7763 SMC Flex Specifications
Value
12 kV
75
12 kV
28 kV
50 / 60 Hz
630 A
16, 20, 25, 31.5
16, 20, 25, 31.5
40, 50, 63, 80
150
33...60
10...15
43...75
60...80
-5...50 °C/23...122 °F (with derating)

Appendix A

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