Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 41)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 41
Installation and Wiring Chapter 2
Grounding The following grounding recommendations are provided to ensure EMC
requirements during installation
.
• The earth ground terminal of the E300 Electronic Overload Relay shall be
connected to a solid earth ground via a low-impedance connection.
• Wire the green shield wire of the Cat. No. 193-ECM-ETR into the earth
ground terminal of the E300 control module.
• Installations employing an external ground fault sensor shall ground the
cable shield at the sensor with no connection made at the E300 Electronic
Overload Relay.
• The PTC thermistor cable shield shall be grounded at the E300 Electronic
Overload Relay with no connection made at the opposite end.
Short-Circuit Ratings The E300 Electronic Overload Relay is suitable for use on circuits capable of
delivering not more than the RMS symmetrical amperes listed in the following
tables.
Table 6 - Standard Fault Short Circuit Ratings per UL60947-4-1 and CSA 22.2 No. EN60947-4-1
Table 7 - Short Circuit Ratings per EN60947-4-1
Overload Relay using Sensing Module Cat. No. Max. Available Fault Current [A] Maximum Voltage [V]
193-ESM-___-30A-C23
5,000 600
193-ESM-___-30A-C55
193-ESM-___-30A-E3T
193-ESM-___-30A-P
193-ESM-___-30A-T
193-ESM-VIG-30A-CT
592-ESM-___-30A-S2
193-ESM-___-60A-C55
193-ESM-___-60A-E3T
193-ESM-___-60A-P
193-ESM-___-60A-T
592-ESM-___-60A-S2
Overload Relay using Sensing Module Cat. No.
Prospective Short-
Circuit Current, I
r
[A]
Conditional Short-Circuit
Current, I
q
[A]
Maximum Voltage [V]
193-ESM-___-30A-C23
3,000 100,000 690
193-ESM-___-30A-C55
193-ESM-___-30A-E3T
193-ESM-___-30A-P
193-ESM-___-30A-T
193-ESM-VIG-30A-CT
592-ESM-___-30A-S2
193-ESM-___-60A-C55
193-ESM-___-60A-E3T
193-ESM-___-60A-P
193-ESM-___-60A-T
592-ESM-___-60A-S2