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What is the replacement for a CCM cradle communication module S48377 for Masterpact breakers?

Published date: 17 June 2020

Issue:
In an existing installation with a 4w Modbus network, a CCM S48377needs to be replaced.  Since the CCM is obsolete, what replaces it?
Can the CCM be replaced with only an IO Module? Are other parts needed?

Product Line:
Circuit Breakers

Environment:
Masterpact drawout breakers

Resolution:
The CCM is replaced by an IO module LV434063.  Other hardware is required to interface with the breaker and with the modbus network.
For quick reference, here are the steps.  Refer to the drawing and the parts list on the attachment.
  1. Remove the CCM.
  2. If the existing BCM has a green top, remove it and replace with new BCM ULP with gray top. 
  3. Install IO Module, IFM, CNV.
  4. Connect together the items in step 2 and 3 using a ULP Cord and ULP Cable selected from the below list (also see drawing below).
  5. Set the IO Module dial to 1 (ERMS is not available) and install a ULP Line Terminator onto the empty port on the IFM.
  6. Connect CNV to modbus 4w network.

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