Table 2: Recommended Circuit Breakers For The Current Rating For 20-60Kva Ups 208 - Gamatronic B60US-IB Installation Manual

A suitably rated fuse must be installed on the rectifier ac input line and bypass input line.
Refer to Figure 9 or Figure 10 for system connections and to Table 2 for circuit breaker
recommendations.
See Chapter ‎ 5 for an overview of circuit breaker selectivity.
Warning: Connection of The UPS to the electrical panel must be
performed only by a licensed electrician experienced with similar
systems.
Warning: If two separate input lines are used for rectifier and bypass
input (as in Figure 9 and Figure 10), the Neutral line must be shared.
WARNING: The recommended cable and breaker sizes are based on
optimal installation conditions. Local code must be followed to coincide
following
with the site ambient temperatures, wire insulation type, conductor
warning:
material, length of cables, method of installation and voltage drop
requirements.

Table 2: Recommended circuit breakers for the current rating for 20-60kva UPS 208

*
UPS MAIN
MODEL SWITCH SW1
kW
18kW 3x63A
36kW 3x133A
54kW 3x200A
UPS for 208 Vac Grid, Installation Guide, doc. rel. 3.0
**
MAIN CB
CB1
(with TRANSFORMER)
3x63A
3x133A
3x200A
For installation:
(*) Without installation transformer.
(**) With isolation transformer only.
RECTIFIER CB BYPASS & OUTPUT CB
CB2 CB3, CB4, CB5
3x63A
3x133A
3x200A
Use copper
wires only!
3x56A 4 AWG
3x112A 2/0 AWG
3x167A 4/0 AWG
32