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4.4 Control Circuit and External Interface Connections
The following illustrates the wiring connections of the Control Circuits, and Battery Interface
Circuits for the 50kVA.
4.4.1 Recommended Wire Size and Torque Requirements
UPS Control and Battery Interface 50 kVA
Minimum Wire Size and Torque Requirements
UPS Control and Battery Interface Circuits
USE MINIMUM 75° C COPPER WIRING
50 kVA
TERMINAL
(TERMINAL #)
AWG
TIGHTENING
TORQUE
UPS CONTROL CIRCUITS
(1-24)*
14-16 8 in-lbs.
BATTERY CONTROL
CIRCUITS (3-6)*
14-16 8 in-lbs.
*Indicates Class 1 wiring methods is to be used. Maximum Wire Size is 12 AWG.
(1) Low Battery
(2) Battery Discharge
(3) Fault
(4) Not Used
(5) Inverter Supply
(6) Inverter Supply
(7) P24A3
(8) Remote Run
(9) P24A3
(10) Remote Stop
(11) Bypass
(12) GND
(13) EPO
(14) EPO
(3) Battery Shunt Trip
(4) Battery Shunt Trip
(5) Battery Aux.
(
6
)
Batter
y
Aux.