Recommended Wire Size And Torque Requirements; Power Connections - 50 Kva; Table 6.6 Ups Control And Battery Wiring; Figure 6-5 Power Terminals - 50Kva - Toshiba 4200FA Installation And Operation Manual

6.2.1

Recommended Wire Size and Torque Requirements

TERMINAL
(TERMINAL #)
UPS CONTROL CIRCUITS
(1-24)*
BATTERY CONTROL CIRCUITS (3-
6)*
BATTERY
(+/-)
*Indicates Class 1 wiring methods are to be used. Maximum Wire Size for Control Circuits is 12
AWG. Maximum for Battery is 1 AWG.
6.3 Power Connections – 50 kVA
The following illustrates the wiring connections from the power distribution panel (not part of the UPS)
to the terminal block of the 50 kVA UPS Model
The Ground lugs are located to the left of TB4. See illustration, below.
Optional: Bypass Input: 3-phase, 3-wire
TB1
(H1) (H2) (H3) (N)
INPUT: 3-phase, 3-wire
208 V requires 3-phase,
4-wire
Optional: Bypass Input: 3-phase, 4-wire
208 V requires 3-phase, 4-wire
4200FA Installation and Operation Manual

Table 6.6 UPS Control and Battery Wiring

Minimum Wire Size and Torque Requirements
UPS Control and Battery Interface Circuits
USE MINIMUM 75 °C COPPER WIRING
15 kVA
14-16
14-16
6 – 1
(L1) (L2)
OUTPUT: 3-phase (4-wire)
TB4

Figure 6-5 Power Terminals - 50kVA

Wire Size AWG*
25 kVA 30 kVA
14-16 14-16
14-16 14-16
2 – 1 1
(L3) (N) (+)
BATTERY
(H1) (H2) (H3)
TIGHTENING
TORQUE
8 in-lbs.
8 in-lbs.
45 in-lbs.
(-)
(N)
27