The best replacement for mccb is acb.

The best alternatives to mccb are rated as following:
★★★★★  acb
★★★★  fuse
★★★  mcb
★★★  mpcb
★★★  elcb
★★★  fuse switch
★★  iccb

Your alternative for mccb is not listed? Suggest!
Speaking about mccb, one probably shouldn't forget about earth fault protection.

Other search terms related to mccb and their ratings are:
★★★★★ earth fault protection
★ mcb
You have in mind a companion for mccb and it is not yet here? Propose!



Google Trends

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mccb
acb
fuse