141A-CC54R63 - 141A MCS Mounting System Adapter Modules, MCS Standard Busbar Module for 140M/140U Circuit Breakers, 54mm x 160mm, 63 Amp, MCS Specific Top Hat Rail,, , Priced per piece ;must buy in multiples of 4

141A-CC54R63 - 141A MCS Mounting System Adapter Modules, MCS Standard Busbar Module for 140M/140U Circuit Breakers, 54mm x 160mm, 63 Amp, MCS Specific Top Hat Rail,, , Priced per piece ;must buy in multiples of 4