Delta DPS-400K - Wiring Procedures

5-8
Ultron DPS Series
5.4 Wiring
5.4.1 Pre-wiring Warnings
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Before wiring or making any electrical connection, make sure the power supplied to the
input and output of the UPS is completely cut off.
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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) 300 400 500
Input Voltage (V)
220/380. 230/400.
240/415
220/380. 230/400.
240/415
220/380. 230/400.
240/415
Output Voltage (V)
220/380. 230/400.
240/415
220/380. 230/400.
240/415
220/380. 230/400.
240/415
Input Switch (A) 630 630 800
Input Cable (mm²) 120mm
2
x 2 PCS 185mm
2
x 2 PCS 240mm
2
x 2 PCS
Bypass Switch (A) 630 630 800
Bypass Cable (mm²) 120mm
2
x 2 PCS 185mm
2
x 2 PCS 240mm
2
x 2 PCS
Manual Bypass
Switch (A)
630 630 800
Output Switch (A) 630 630 800
Output Cable (mm²) 120mm
2
x 2 PCS 185mm
2
x 2 PCS 240mm
2
x 2 PCS
Battery Cable (mm²) 185mm
2
x 2 PCS 300mm
2
x 2 PCS 185mm
2
x 3 PCS
Battery Fuse (A) 800 1000 1200
Grounding Cable
(mm²)
120mm
2
x 2 PCS 185mm
2
x 2 PCS 240mm
2
x 2 PCS
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.