beautypg.com

Short-circuit ratings – Rockwell Automation 193-EC1_2_3_5, 193-ECPM,592-EC1_2_3_5 E3 and E3 Plus Solid-State Overload Relay User Manual User Manual

Page 30

background image

30

Rockwell Automation Publication 193-UM002I-EN-P - December 2011

Chapter 2 Installation & Wiring

• The earth ground terminal of the E3 Overload Relay shall be connected to

a solid earth ground via a low-impedance connection.

• Installations employing an external ground fault sensor shall ground the

cable shield at the sensor with no connection made at the E3 Plus Overload
Relay.

• The PTC thermistor cable shield shall be grounded at the E3 Plus

Overload Relay with no connection made at the opposite end.

Short-Circuit Ratings

The E3 Overload Relay is suitable for use on circuits capable of delivering not
more than the RMS symmetrical amperes listed in the following tables.

Short-Circuit Ratings

Table 10 - UL

Table 11 - IEC

Cat. No.

Maximum

193-EC_ _ 592-EC_ _ Available Fault Current [A] Voltage [V]
B

T

5,000

600

D

C

E

D

10,000

F
G

18,000

H

42,000

Z

5,000

Cat. No.

Prospective
Current I

r

[A]

Conditional Short-Circuit
Current I

q

[A]

193-EC_ _ 592-EC_ _

Maximum Voltage [V]

B

T

1,000

100,000

690

D

C

3,000

E

D

5,000