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2. Installation
Required protective devices and cable cross-sections
Recommended upstream protection
Single phase input : To UPS Normal AC source and/or Bypass AC source
Three phases input : To Bypass AC source
Three phases input : To Normal AC source
Recommended downstream protection
Required cable cross-sections
Terminal-block cable capacity: 25 mm², solid or stranded wire (maximum 25 mm² or AWG 2).
Capacity for earthing conductor: 25 mm², solid or stranded wire (maximum 25 mm² or AWG 2).
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34008486EN/AC
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UPS power rating
15000/20000 RT
2 poles circuit breaker
4 poles circuit breaker
2 poles circuit breaker
UPS power rating
15000 RT
20000 RT
Upstream circuit breaker
D curve - 125 A
To AC source
To Normal AC source
Downstream circuit breaker
Z curve - 10A
C curve - 6A
Z curve - 10A
C curve - 6A
The indicated protection ensures
discrimination for each output circuit
downstream of the UPS.
If these recommendations are not
followed, protection discrimination is not
achieved and may result in a potential
power interruption to the connected
devices.
The indicated protection ensures
discrimination for each output circuit
downstream of the UPS.
If these recommendations are not
followed, protection discrimination is not
achieved and may result in a potential
power interruption to the connected
devices.
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