APC 3000 Minimum setting of breakers for 10kVA UPS, Minimum setting of breakers for 15kVA UPS

Site Preparation (UPS and XR) – Operating Environment

Minimum setting of breakers for 10kVA UPS

Overload	Mains input	Bypass input	Output	Duration	Notes
Event
Internal fault	2kA	1.7kA	14kA	<10ms	1
800%	–	223A	223A	500ms
overload
bypass
operation
150%	–	–	42A	30s
overload
normal/battery
operation
125%	–	–	35A	60s
overload
normal/battery
operation
Continuously	34A	31A	31A	∞

Note 1: For the output value, the short-circuit-level is indicated.

Minimum setting of breakers for 15kVA UPS

Overload	Mains input	Bypass input	Output	Duration	Notes
Event
Internal fault	2.5kA	2.1kA	14kA	<10ms	1
800%	–	333A	333A	500ms
overload
bypass
operation
150%	–	–	63A	30s
overload
normal/battery
operation
125%	–	–	52A	60s
overload
normal/battery
operation
Continuously	51A	46A	46A	∞

Note 1: For the output value, the short-circuit-level is indicated

20 AIS® 3000 10-30kVA, 208V, Site Preparation and Installation Manual – 990-1957