Allen-Bradley 1407-CGCM, User Manual, Page: 170 / 252

Rockwell Automation Publication 1407-UM001H-EN-P - November 2014
!PPENDIX! Time Over-current Characteristic Curves
4IME/VERCURRENT
#HARACTERISTIC#URVE
'RAPHS
The following illustrations show the characteristic curves of the CGCM.
Equivalent time dial settings were calculated at a value of five times pickup.
The Characteristic Curve Cross-Reference table cross-references each curve to
existing electromechanical relay characteristics.
4ABLE0AND.4IME#HARACTERISTIC#URVE#ONSTANTS
#URVE
3ELECTION
#URVE.AME 4RIP#HARACTERISTIC#ONSTANTS 2ESET
A B C N K R
1 S, Short Inverse 0.2663 0.03393 1.000 1.2969 0.028 0.5000
2 S2, Short Inverse 0.0286 0.02080 1.000 0.9844 0.028 0.0940
3 L1, Long Inverse 5.6143 2.18592 1.000 1.000 0.028 15.750
4 L2, Long Inverse 2.3955 0.00000 1.000 0.3125 0.028 7.8001
5 D, Definite Time 0.4797 0.21359 1.000 1.5625 0.028 0.8750
6 M, Moderately Inverse 0.3022 0.12840 1.000 0.5000 0.028 1.7500
7 I, Inverse Time 8.9341 0.17966 1.000 2.0938 0.028 9.0000
8 Inverse Time 0.2747 0.10426 1.000 0.4375 0.028 0.8868
9 V, Very Inverse 5.4678 0.10814 1.000 2.0469 0.028 5.5000
10 V2, Very Inverse 4.4309 0.09910 1.000 1.9531 0.028 5.8231
11 Extremely Inverse 7.7624 0.02758 1.000 2.0938 0.028 7.7500
12 E2, Extremely Inverse 4.9883 0.01290 1.000 2.0469 0.028 4.7742
13 Standard Inverse 0.01414 0.00000 1.000 0.0200 0.028 2.0000
14
B, Very Inverse (I
2
t)
1.4636 0.00000 1.000 1.0469 0.028 3.2500
15
Extremely Inverse (I
2
t)
8.2506 0.00000 1.000 2.0469 0.028 8.0000
16
Long Time Inverse (I
2
t)
12.1212 0.00000 1.000 1.0000 0.028 29.0000
17 Fixed Time 0.0000 1.00000 1.000 0.0000 0.028 1.0000