Rockwell Automation Allen-Bradley E300

48 Rockwell Automation Publication 193-UM015D-EN-P - February 2015
Chapter 2 Installation and Wiring
Figure 36 - E300 DOL and Single-Phase Full-voltage Connections
External Line Current
Transformer Application
Current Transformer Ratio
The following E300 Electronic Overload Relay sensing module catalog numbers
can be used with step down current transformers:
• 193-ESM-IG-30A-E3T
• 193-ESM-IG-30A-T
• 193-ESM-IG-30A-P
• 193-ESM-I-30A-E3T
• 193-ESM-I-30A-T
• 193-ESM-I-30A-P
• 193-ESM-VIG-30A-CT
CT Primary (Parameter 263) and CT Secondary (Parameter 264) allows you to
identify the turns ratio of the step down current transformers in use. Based on
these two configuration parameters, the E300 Electronic Overload Relay will
automatically adjust the measured current. Use the primary current for your FLA
settings.
L1
2/T1
4/T2
6/T3
M
T1
Three-Phase Direct-On-Line
Single-Phase Full-Voltage
T2
L2
E300
L1
2/T1
4/T2
6/T3
M
T1
T2
T3
S.C.P.D.
L2
L3
S.C.P.D.
E300