W-C-375/18C
REQUIREMENTS:
Interface and physical dimensions: See figure 1.
Trip indication: See figure 1.
Common trip: All poles shall make and break simultaneously when operated manually or automatically.
Electrical:
Interrupting current rating: RMS symmetrical.
18,000 amperes at 240 V ac.
14,000 amperes at 277 V ac.
14,000 amperes at 480 V ac. Voltage rating: 480 V ac maximum. Trip current: See table I.
Frequency: 60 hertz. Calibration: At +40°C.
Enclosure for overload, endurance, and short circuit tests: Cutler-Hammer SFDN100, or equivalent.
TABLE I. Part or Identifying Numbers (PINs) and current rating.
Government PIN |
Current rating |
WC375/18-001 1/ WC375/18-002 WC375/18-003 WC375/18-004 WC375/18-005 WC375/18-006 WC375/18-007 WC375/18-008 WC375/18-009 WC375/18-010 WC375/18-011 WC375/18-012 |
10 15 20 25 30 35 40 50 60 70 90 100 |
1/ Not for new design.
3
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