SPECIFICATIONS |
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| Page 33 |
Table 3 Circuit Breaker Ratings – Manual Operation | ||||
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Rated Voltage | kV, rms | 7.2 |
| 4.8 |
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Rated Low Frequency Withstand Voltage | kV, rms |
| 22 | |
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Impulse Withstand Voltage | kV, crest |
| 60 | |
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Rated Continuous Current | A, rms | 630 | ||
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Rated Frequency | Hz | 50/60 | ||
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Rated | kA, rms | 14 |
| 16 |
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Rated | kA, crest | 35 |
| 40 |
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Rated | kA, rms | 12.5 | ||
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Rated Interrupting Time (60Hz Basis) | cycles |
| 3 | |
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Opening Time | msec | 8 - 25 | ||
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Rated Control Voltage (Opening) | V | DC 30, 125 | ||
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Rated Control Voltage (Undervoltage Trip) | V | AC 120 | ||
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Operating Duty |
| O - 1 min - CO - 3 min - CO | ||
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Auxiliary Contacts |
| 2 N.O. - 2 N.C. | ||
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Weight | kg | 22 (U Type) |
| 25 (L Type) |
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Table 4 Circuit Breaker Ratings – Motor Stored Energy Operation
Rated Voltage | kV, rms | 7.2 |
| 4.8 |
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Rated Low Frequency Withstand Voltage | kV, rms |
| 22 | |
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Impulse Withstand Voltage | kV, crest |
| 60 | |
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Rated Continuous Current | A, rms | 630 | ||
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Rated Frequency | Hz | 50/60 | ||
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Rated | kA, rms | 14 |
| 16 |
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Rated | kA, crest | 35 |
| 40 |
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Rated | kA, rms | 12.5 | ||
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Rated Interrupting Time (60Hz Basis) | cycles |
| 3 | |
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Opening Time | msec | 8 - 25 | ||
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Closing Time | msec | 150 - 300 | ||
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Charging Time | sec | 1.5 - 3 | ||
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Rated Control Voltage (Closing/Charging) | V | AC 120, DC 125 | ||
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Rated Control Voltage (Opening) | V | DC 30, 125 | ||
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Rated Control Voltage (Undervoltage Trip) | V | AC 120 | ||
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Operating Duty |
| O - 1 min - CO - 3 min - CO | ||
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Auxiliary Contacts |
| 2 N.O. - 2 N.C. | ||
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Weight | kg | 24 (MU Type) |
| 27 (ML Type) |
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