Wiring; Pre-Wiring Warnings - Delta DPH Series User Manual

5.4

Wiring

5.4.1

Pre-wiring Warnings

NOTE:
1. Before wiring, please ensure that you have followed 5.3 UPS Installation to
fix the UPS in the designated installation area firmly.
2. Before wiring, please read 5.4 Wiring thoroughly.
3. Only authorized Delta engineers or service personnel can perform installation,
wiring, panel & cover removal, maintenance and operation. If you want to
execute any action mentioned above by yourself, the action must be under the
supervision of authorized Delta engineers or service personnel.
4. The UPS must be connected with an external maintenance bypass cabinet
(user-supplied, handled and configured by Delta service personnel). For the
external maintenance bypass cabinet's information, please refer to 1.2
Connection Warnings.
5. During wiring procedures, please protect the UPS from foreign materials falling
into the cabinets.
• Before wiring or making any electrical connection, make sure that the power supplied to
the input and output of the UPS is completely cut off.
• Check if the size, diameter, phase and polarity are correct for each cable connecting to
the UPS, external battery cabinet(s) or external maintenance bypass cabinet. Please
refer to Table 5-2.
NOTE:
Table 5-2 is based on (1) default input/ output voltage: 480V, (2) default battery
Q'ty: 40 PCS and (3) default charge current per power module: 5A. For other
conditions different from Table 5-2, please contact Delta service personnel for
relevant values.
Table 5-2: Specifications of Input/ Output/ Battery Cables, Switches & Breakers
 200kVA/ 200kW ~ 350kVA/ 350kW
UPS Capacity
Power Module Q'ty
Input Rated current at
& 480V with battery
charging
Bypass
Modulon DPH Series
DPH Series
200kVA/ 250kVA/
200kW 250kW
4 5
295A 368A
48
300kVA/ 350kVA/
300kW 350kW
6 7
442A 516A