I.L. 3778A20B
Page 10
Effective 11/97
Figure 6 Control Scheme - Power Trip
Control Switch Box with 50 ft. # 14-3 Cable
and 3 Prong Male Twist Lock Connector
Ground and Test Device has 3 Hole Female Socket
KT
PS
WHITE
CLOSE
OPEN
W
1
TD
X
Z
R
24
TD
M
SR
Y
ST
GREEN
OR
RED
TD
Y
LS1
b
LS2
b
Y
Y
a
a
CS = Control Switch:
Vertical : No Circuit (Spring Return Position)
CW : Close
CCW : Trip
Y = Anti Pump Relay
M = Charging Motor
LS = Limit Switch (Shown - Spring Discharged)
ST = Shunt Trip Coil
TD = Time Delay Relay : Seals in to Complete Charging & Closing,
20 Seconds Delay on Dropout, Blocks Tripping for 20 Seconds
After Closing
a = Auxiliary Switch Contact
b = Auxiliary Switch Contact
SR = Spring Release coil
KT = Key Interlock Contact
R = Bridge Rectifier
PS = Position Switch (Prevents Charging Between “Test” and
“Connected” Positions)
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