Site Preparation – Operating Environment
18 Smart-UPS® VT 10-40kVA 400V Site Preparation and Installation Manual 990-2283
Minimum breaker settings for 10kVA UPS
Note 1: For the output value, the short-circuit-level is indicated.
Minimum breaker settings for 15kVA UPS
Note 1: For the output value, the short-circuit-level is indicated.
Overload
Event
Mains input Bypass input Output Duration Notes
Internal fault 2kA 1.7kA 9kA <10ms 1
800%
overload
bypass
operation
– 121.5A 121.5A 500ms
150%
overload
normal/battery
operation
– – 22.8A 30s
125%
overload
normal/battery
operation
– – 19A 60s
Continuously
(380V)
16.4A 16.7A 16.7A
∞
Overload
Event
Mains input Bypass input Output Duration Notes
Internal fault 2.1kA 1.8kA 9kA <10ms 1
800%
overload
bypass
operation
– 182A 182A 500ms
150%
overload
normal/battery
operation
– – 34.2A 30s
125%
overload
normal/battery
operation
– – 25.4A 60s
Continuously
(380V)
24.6A 25.1A 25.1A
∞
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