APC G5USV040P005SAIO Datasheet download pdf (Page 14)

34001813EN/AF - Page 14

2. Installation

2.4 Required protective devices and cable sizes

Recommended upstream protection

Recommended downstream protection

Earth-leakage current

UPS earth-leakage current is 1 A.

UPS

power

rating

Upstream circuit-breaker on

separate Normal AC input

Upstream circuit-breaker on

separate Bypass AC input

Upstream circuit-breakers on

common bypass and Normal AC

input

20 kVA C60L - 50 A NS100N 4P-TM100A NS100N 4P-TM100A

30 kVA C60L - 63 A NS100N 4P-TM100A NS100N 4P-TM100A

40 kVA NS100N 3P-TM80A NS100N 4P-TM100A NS100N 4P-TM100A

60 kVA NS125E 3P-TM125A NS125E 4P-TM125A NS125E 4P-TM125A

80 kVA NS160N 3P-TM160A NS160N 4P-TM160A NS160N 4P-TM160A

100 kVA NS250N 3P-TM200A NS250N 4P-TM250A NS250N 4P-TM250A

120 kVA NS250N 3P-TM250A NS250N 4P-TM250A NS250N 4P-TM250A

The circuit breakers recommended above respect the requirements for discrimination with the UPS fuses

Stick a label with the following text on each upstream circuit breaker:

"Isolate Uninterrptible Power Supply (UPS) before working on this circuit".

UPS power rating Downstream

circuit breaker

Trip unit Curve N for the downstream circuit breaker

may be replaced by curve H or L, depending

on the installation.

The indicated protection ensures

discrimination for each output circuit

downstream of the UPS, whether supplied by

via the normal or the Bypass AC source. If

these recommendations are not followed, a

short-circuit on an output circuit can result in

a break in power longer than 20 milliseconds

on all the other output circuits.

20-30-40 kVA C60N C 16A

C60N B 25A

60 kVA C60N C 20A

C60N B 32A

80 kVA C60N C 25A

C60N B 50A

100-120 kVA C60N C 32A

C120N B 63A

NS100 TMG 50A

Note. See the simplified diagrams in the appendix for common or separate AC inputs, indicating the positions of the protection

devices, the characteristics of the internal UPS fuses and UPS line currents under overload conditions.

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