TABLE XI. Short-time delay trip timing test (electromechanical and electronic trip units) - Continued.
Actual trip time
Left pole (short-time delay set at min.
Center pole (short-time delay set at
Right pole (short-time delay set at
STDPU
Applied
band)
intmd. band) /3
max. band)
switch
current
setting /1
(amps)
Trip time
Trip time
Trip time
Required /2
Actual
Required /2
Actual
Required /2
Actual
2 times
nominal
STDPU
3 times
Max.
nominal
setting
STDPU
4 times
nominal
STDPU
NOTES:
/1 Minimum, intermediate (or as close to middle as possible) and maximum short-time delay pickup (STDPU) setting available on the circuit breaker, as
specified in the applicable specification sheet.
/2 Allowable time band as specified in the applicable specification sheet for short-time tripping.
/3 Intermediate (or as close to middle as possible) short-time delay band setting available on the circuit breaker, as specified in the applicable specification
sheet.
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