Rockwell Automation 193-EC1_2_3_5, 193-ECPM,592-EC1_2_3_5 E3 and E3 Plus Solid-State Overload Relay User Manual - Manual (Page 48)

48 Rockwell Automation Publication 193-UM002I-EN-P - December 2011
Chapter 3 Protective Trip & Warning Functions
Figure 30 - Time-Current Characteristics for Trip Classes 5, 10, 20, & 30
For trip class time-current characteristics other than 5, 10, 20, or 30, scale the
Class 10 trip time according to the following table:
Table 19 - Time-Current Characteristic Scaling Factors
Trip Class
Trip Class
10 Multiplier Trip Class Trip Class
10 Multiplier Trip Class Trip Class
10 Multiplier
5 0.5 14 1.4 23 2.3
6 0.6 15 1.5 24 2.4
7 0.7 16 1.6 25 2.5
8 0.8 17 1.7 26 2.6
9 0.9 18 1.8 27 2.7
10 1.0 19 1.9 28 2.8
11 1.1 20 2.0 29 2.9
12 1.2 21 2.1 30 3.0
13 1.3 22 2.2
1
10
100
1000
100% 1000%
Time (seconds)
Trip Class 5
Current (% FLA)
Trip Class 30
1
10
100
1000
10000
100% 1000% Current (% FLA)
Time (seconds)
1
10
100
1000
10000
100% 1000%
Trip Class 20
Time (seconds)
Current (% FLA)
1
10
100
1000
100% 1000%
Time (seconds)
Trip Class 10
Current (% FLA)
Cold Trip
Hot Trip