Specifications

10
JD and LD-Frame Trip Adjustments
Short Time Pickup/Short Time Delay (Optional)
Circuit breakers with the letters “NT” in the catalog number
have an adjustment to set both the Short Time Pickup and the
Short Time Delay. This single knob sets both pickup and
delay at the same time.
Four delays are available. These are fixed delays of 0.05, 0.1,
or 0.2 seconds or an 1
2
t delay slope at 0.2 seconds at 6 times
the Continuous Current Setting (I
r
) The delay is selected by
using the appropriate area of the setting knob. The pickup
settings are multiples of the Continuous Current Setting (I
r
) of
the circuit breaker.
Ground Fault Pickup (I
g
) (Optional)
Circuit breakers with the letter “G” included in the catalog
number have integral equipment ground fault protection.
These circuit breakers have an adjustment to set the Ground
Fault Pickup current (I
g
) as a percentage of the Maximum
Continuous Current rating (I
n
) The pickup has a built in time
delay. Three time delays are available of 0.1, 0.2, or 0.4
seconds. These are selected by using the appropriate area
of the setting. Below 50% Maximum Continuous Current
rating (I
n
) the pickup delay has an 1
2
t slope.