Delta NT Series - Electrical Connections; 30 Kva Output 220 Vac Terminal Wiring Diagram

Chapter 4 Installation & Wiring
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1
), copper wires with temperature
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2
) when connecting to AC and DC
wiring terminals.
Model Wiring Location Wire Gauge (
*
1
) Bolt Type Torque (lb-in) (
*
2
)
GES104NT,
NT-100K
Main Input 4/0 AWG X 1 M10 220±8
Res. Input 2/0 AWG X 2 M10 220±8
Output 2/0 AWG X 2 M10 220±8
Battery 2/0 AWG X 2 M10 220±8
PE 3 AWG X 1 M10 220±8
4.9 Electrical Connections
WARNING:
1. AC power source connection: Three-phase (R/ S/ T) of AC power source
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2. Battery source connection: The positive and negative poles of the battery
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3. The external battery cabinet must be grounded and connected to the
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battery cabinet to any other grounding system.
4. Wrong wiring will cause damage to the UPS and electric shock.
4.9.1 10~30kVA Output 220Vac Terminal Wiring Diagram
Single input: When there is only one input source, the wiring diagram is as follows.
R
S
TRNNR
Input Output
1B
Battery
Cabinet
Ground
Battery+
Battery -
Ground