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APPENDIX
IB 6.2.7.7-3I
a- Auxiliary Switch Contact Closed When Breaker is Closed.
b- Auxiliary Switch Contact Open When Breaker is Closed.
LCb - Latch Check Switch Contact Closed When Breaker Operating Mechanism is Reset.
LSa - Limit Switch Contact Open When Springs are Discharged. Closed When Springs are
charged.
LSb - Limit Switch Contact Closed When Springs Are Discharged. Open When Springs are
Charged.
TC - Shunt Trip Coil.
X - Closing Latch Release Coil.
Y - Contol Relay Lockout Coil.
Ya - Normally Open Relay Contact.
Yb - Normally Closed Control Relay Contact.
TB - Terminal Block Point.
ML - Motor Lead.
CE - Coil Lead End.
C1,C2 - Terminal Jumper (Control Device).
--< - Female Secondary Disconnect Contact.
TYPICAL DC SCHEMATIC OF CONTROL CIRCUIT
FIGURE A12
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