Power Cable Terminals; Recommended Circuit Breakers - Huawei UPS5000-H-800 kVA-NTN Quick Manual

UPS5000-H-800 kVA-NTN
Quick Guide (480 V, 100 kVA Power Modules)

1.2.3 Power Cable Terminals

Table 1-3 Power terminal connection requirements
Port Connection Method
Mains input Crimped DT terminal
Bypass input Crimped DT terminal
Battery input Crimped DT terminal
Output Crimped DT terminal
PE Crimped DT terminal
Equipotential Crimped DT terminal
ground

1.2.4 Recommended Circuit Breakers

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Recommended specifications when the short-circuit current going through the
circuit breaker is less than 65 kA:
Capacity
800 kVA
700 kVA
600 kVA
Issue 01 (2023-03-20)
The input circuit breakers recommended are for reference only.
The bypass input circuit breaker and downstream output circuit breaker
specifications are recommended based on the rated UPS capacity. If the UPS
needs to be overloaded, adjust the switch specifications based on the
overload current.
The maintenance bypass circuit breaker is recommended based on the
scenario where a single UPS is used. In a parallel system, adjust the circuit
breaker specifications based on the total current.
The UPS can generate large leakage currents. A circuit breaker equipped with
a residual current device (RCD) is not recommended.
If multiple loads are connected, use recommended specifications for branch
circuit breakers.
Select proper circuit breakers to protect loads and cables, and cascade them
properly to achieve selective protection.
Mains Input Bypass Input
Circuit Breaker Circuit Breaker
Specifications Specifications
1250 A/3P 1000 A/3P
1250 A/3P 1000 A/3P
1000 A/3P 800 A/3P
Copyright © Huawei Technologies Co., Ltd.
Bolt Bolt Length
Specifications
M16 55 mm
M16 55 mm
M16 55 mm
M16 55 mm
M12 30 mm
M6 20 mm
Downstream
Output Circuit
Breaker
Specifications
1000 A/3P
1000 A/3P
800 A/3P
1 Installation and Cable Connection
Torque
120 N·m
120 N·m
120 N·m
120 N·m
47 N·m
4.5 N·m
Maintenance
Bypass Circuit
Breaker
Specifications
1000 A/3P
1000 A/3P
800 A/3P
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