DT3000
Instruction Leaflet
I.B. 17555D
Effective: Date 07/02
Page 47
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www.cutler-hammer.eaton.com
Supersedes I.B. 17555C dated November 1999
Figure 7-6 Inverse Time Overcurrent/Short Delay Curves (SC-5395-92B)
0.01
0.10
1.00
10.00
100.00
1000.00
10000.00
0.1
1
10
100
Multiple of I
n
Value
Trip Time (seconds)
Typical Short Delay Time Function
Typical Inverse Time Overcurrent Function
Inverse Time Overcurrent Pickup = 1.0 x
Inverse Time Overcurrent Time Multiplier = 10 s @ 3 x I
n
(I
A
2
*
T)
Short Delay Setting = 11 x
Short Time Delay = 1.5 s
Note: The Short Delay Time is used as the shortest tip time
possible in Inverse Time Overcurrent or Short Delay
