Control wire requirements, Approximate dimensions – 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 39
Rockwell Automation Publication 193-UM002I-EN-P - December 2011
39
Installation & Wiring Chapter 2
Control Wire Requirements
• The maximum length of the shielded cable is 100 feet (30.48 meters).
• All control terminals are for copper wire only in sizes #12…24 AWG.
• Ring lug termination is required for the ground sensor terminals of 193-
CBCT2 and larger.
• The sensor fastener torque is 26…30 lb-in.
• The 193-CBCT1 wires should be twisted before termination by applying
one twist per inch (per 25.4 millimeters).
Table 17 - Control Wire Specifications
Approximate Dimensions
Approximate dimensions are shown in millimeters (inches). Dimensions are not
intended to be used for manufacturing purposes.
IMPORTANT The shield of the twisted pair cable must be connected to earth ground
at the ground fault sensor with no connection made at the E3 Plus
Overload Relay.
Cat. No.
193-
Max.
Current
[A]
Hz
Turns
Ratio
Sensor
Window
I.D.
Max.
Recommended
Cable Size @ 600V
Cat. No.
100-C09 IEC
Contactor
NEMA
Contactor
Size
CBCT1
45
50/60 1000:1 19.1 mm
(.75 in.)
#8 AWG
(10 mm
2
)
➊
…-C37
00…2
CBCT2
90
#2 AWG
(350 mm
2
)
➊
…-C85
00…3
CBCT3
180
#250 MCM
(120 mm
2
)
➊
…-D180
00…4
CBCT4
420
$350 MCM
(185 mm
2
)
➋
…-D240
00…5
➊
For a three-phase system with one cable per phase.
➋
For a three-phase system with two cables per phase.