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Chapter 3—Installation and Wiring
Power Xpert C445 Global Motor Management Relay
MN042003EN—January 2019
www.eaton.com
37
DC Input Option
The C445 Base Control Module with the DC Input option
allows for four isolated 24 Vdc Inputs (Option #1) or four dry
contact (relay/switches) inputs (Option #2).
Figure 46. DC Field Input Terminal
Wiring Option #1—Four Isolated 24 Vdc Inputs
When using option #1, no connections are made to pins 6 or 7.
Wiring Option #2—Four Dry Contact Inputs
To use this option, pin 5 is shorted directly to pin 6. Pin 7 is
connected through a switch or relay to the appropriate input.
The maximum wire length from pin 7 to the corresponding
input is 10m.
DC Field Input wiring is accomplished with a 7-pin, 5.00 mm
pitch, removable screw terminal plug.
Note:
When using Option #2, all wiring must meet PELV
requirements.
Figure 47. DC Input Wiring Option 1 (Isolated)
Figure 48. DC Input Wiring Option 2 (Non-Isolated)
Pin#
Circuit
Description
1
I1
DC Field Input 1
2
I2
DC Field Input 2
3
I3
DC Field Input 3
4
I4
DC Field Input 4
5
C
Common for DC Field Input
6
0V
Digital Electronics Ground
7
24V
Source for DC Field Inputs
Field
1
2
3
4
5
6
7