990-91399A-001

Upstream and Downstream Protection for UL

DANGER
Hazard of electric shock, explosion, or arc flash
  • Circuit breakers must have instantaneous trip time of maximum 50 ms.
  • Circuit breakers must have instantaneous override values set according to the table below.
  • Circuit breakers must be installed for input (unit input breaker UIB) and bypass (static switch input breaker SSIB).
  • Circuit breakers must be installed for the output (unit output breaker UOB) of each UPS in a parallel system.
Failure to follow these instructions will result in death or serious injury.
CAUTION
hazard of fire
  • Connect only to a circuit with the below specifications.
  • Connect to a circuit provided with a 1200 A branch circuit overcurrent protection maximum in accordance with the National Electrical Code, ANSI/NFPA70, and the Canadian Electrical Code, Part I, C22.1.
Failure to follow these instructions can result in injury or equipment damage.

Recommended Upstream Protection for UL

NOTE: Overcurrent protection is to be provided by others and marked with its function.
UPS rating 200 kW 250 kW
  Input Bypass Input Bypass
Breaker type LJF36400CU31X LJF36400CU31X

PJF36060CU31A

LJF36400CU31X
Ir 400 300 540 400
tr ≥4 ≥4 ≥4 ≥4
li (x In) ≤12 ≤12 ≤12 ≤12
UPS rating 300 kW 350 kW 400 kW
  Input Bypass Input Bypass Input Bypass
Breaker type

PJF36060CU31A

PJF36060CU31A

PJF36080CU31A

PJF36060CU31A

PJF36080CU31A PJF36060CU31A
Ir 600 480 720 600 800 600
tr ≥4 ≥4 ≥4 ≥4 ≥4 ≥4
li (x In) ≤12 ≤12 ≤10 ≤12 ≤10 ≤12
UPS rating 450 kW 500 kW
  Input Bypass Input Bypass
Breaker type PJF36100CU31A PJF36080CU31A PJF36100CU31A PJF36080CU31A
Ir 900 720 1000 800
tr ≥4 ≥4 ≥4 ≥4
li (x In) ≤8 ≤10 ≤8 ≤10
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