SMARTZONE UPS INSTALLATION MANUAL
52
environmental conditions (temperature and natural conditions).
4. Each part of the system must maintain a connected earth ground.
a. Refer to
Appendix K
for the ground screw location and
ground wire size.
ii. Before hardwiring the UPS unit, ensure that there is no power on the
wires, use lock-out tag-out at the breaker panel / local disconnect.
iii. Remove the protective cover on the terminal block housing on the back
of the UPS.
iv. Feed the input cable through a provided cable gland and appropriate
hole on terminal block housing.
Note:
Ensure that the cable gland is
separated on each side of the terminal block house to allow for the cable
to be secured to the housing.
v. Crimp a ring terminal onto each wire with a standard crimping tool for
the wire size.
vi. Connect each wire under the appropriate screw as indicated on the back
of the UPS (see the appropriate wire connection diagram in Figures 67
- 70 and bus jumpers in Figure 81).
Note:
Each part of the system must
maintain a connected earth ground.
vii. After completing the wiring, confirm again that all wiring is correct.
viii. Tighten the cable gland to the terminal block housing to secure the cable
to the UPS.
ix. Leave the terminal block cover off the housing for the next step of
connecting the load(s).
2. Connect the load(s) to the UPS:
a. All 3-phase UPS units (10-20kVA) have a hardwire output (U10N32V, U10S32V,
U15N32V, U15S32V, U20N32V, U20S32V).
i. The wired connections must be appropriately sized.
1. Refer to the table below for the output power cable to be used
based on the configuration of the UPS unit being deployed (3-
phase in and 3-phase out or 3-phase in and single-phase out).
a. If the rated voltage is 400 V, multiply the currents by 0.95.
If the rated voltage is 415 V, multiply the currents by 0.92.
b. If primary loads are non-linear loads, increase the cross-
sectional areas of neutral wires by 1.5 to 1.7 times.
2. The cable must conform to the local wiring code according to
environmental conditions (temperature and natural conditions).
3. Each part of the system must maintain a connected earth ground.
ii. Before hardwiring the UPS unit outputs, ensure that there is no power
on the terminals.
iii. The protective cover on the terminal block should already be removed
from the last step.
iv. Feed the output cable(s) through provided cable gland(s) and
appropriate hole on terminal block housing.
Note:
Ensure that the cable
gland is separated on each side of the terminal block house to allow for
