Emerson GXT2-PP20KRT208 - Manual (Page 21)

Installation
17
5.5 Parallel POD Main Electrical Connection—Must Be Installed
Electrical connections are made through a removable conduit box that attaches to the top of the paral-
lel POD.
A branch breaker is required for short circuit or overcurrent protection. The installer must provide a
120A (@ 208V to 240V) branch circuit breaker. If the paralleling system detects any UPS with short
circuit or overcurrent, the input circuit breaker and the output circuit breaker on the rear fixed-panel
of the UPS will disconnect all power between the main cabinet and the distribution box.
The manual bypass breaker passes utility power directly to the bypass switch from the input terminal
block. The three UPS input circuit breakers on the POD do not disconnect power from the manual
bypass breaker.
Figure 13 120A branch circuit breaker connection
!
WARNING
Risk of electrical shock and fire. May cause equipment damage, personal injury and death.
A disconnect switch for the AC input circuit must be field-supplied. To reduce the risk of fire,
connect the disconnect switch only to a circuit provided with branch circuit overcurrent
protection for 120A rating in accordance with the National Electric Code, ANSI/NFPA 70.
!
WARNING
Risk of electrical shock and fire. May cause equipment damage, personal injury and death.
A disconnect switch for the AC output circuit must be field-supplied. To reduce the risk of fire,
connect the disconnect switch only to a circuit provided with branch circuit overcurrent
protection for 100A rating in accordance with the National Electric Code, ANSI/NFPA 70.
UPS1 UPS2 UPS3
Optional
Output
Distribution
Module
63A Input and
Output Circuit
Breakers
I/P I/P I/P O/P O/P O/P
Input
Utility
Output
Maintenance
Breaker
Main I/P
Terminal Block
120 A External
Branch Circuit
Breaker
100 A External
Circuit Breaker
Main O/P Terminal Block
Load