Wiring; Pre-Wiring Warnings - Delta DPS-400K User Manual

5.4

Wiring

5.4.1 Pre-wiring Warnings

Before wiring or making any electrical connection, make sure the power supplied to the
input and output of the UPS is completely cut off.
Check that the size, diameter, phase, and polarity are correct for each cable that needs
connecting to the UPS. Please refer to Table 5-2.
Table 5-2: Input/ Output Electrical Data
UPS Rating (kVA)
Input Voltage (V)
Output Voltage (V)
Input Switch (A)
Input Cable (mm²)
Bypass Switch (A)
Bypass Cable (mm²)
Manual Bypass
Output Switch (A)
Output Cable (mm²)
Battery Cable (mm²)
Battery Fuse (A)
Grounding Cable
Ultron DPS Series
220/380. 230/400.
220/380. 230/400.
120mm
120mm
Switch (A)
120mm
185mm
120mm
(mm²)
NOTE:
1. Please refer to national and local electrical codes for acceptable non-fuse
breakers and cable size.
2. In accordance with National Electrical Codes (NEC), please install a
suitable conduit and bushing.
3. Cables with PVC material and with temperature resistance up to 105°C are
suggested.
4. The tightening torque for M8 screws should be 150 ±5Kgf.cm, and for M10
screws, 250 ±5Kgf.cm.
300
220/380. 230/400.
240/415
220/380. 230/400.
240/415
630
2
x 2 PCS 185mm
630
2
x 2 PCS 185mm
630
630
2
x 2 PCS 185mm
2
x 2 PCS 300mm
800
2
x 2 PCS 185mm
5-8
400
220/380. 230/400.
240/415
220/380. 230/400.
240/415
630
2
x 2 PCS 240mm
630
2
x 2 PCS 240mm
630
630
2
x 2 PCS 240mm
2
x 2 PCS 185mm
1000
2
x 2 PCS 240mm
500
240/415
240/415
800
2
x 2 PCS
800
2
x 2 PCS
800
800
2
x 2 PCS
2
x 3 PCS
1200
2
x 2 PCS