Patent ID: 8787004

Claim:
A Medium Voltage Circuit Breaker (“CB”) comprising an electronic protection and control unit wherein said electronic protection and control unit comprises: a base, fixed to the circuit breaker, comprising a main body having fixing means for fixing to the circuit breaker, a first side of said main body comprising a confined space including connections to the CB and internal accessories thereof, a second side of said main body comprising a plurality of first power and/or signal connection means; the first side of the main body forming the rear part of the base; the second side of the main body forming a part of the base that is opposite to the rear part of the base; a removable unit comprising a casing, a first part of said casing hosting one or more Intelligent Electronic Devices, a second part of said casing being removably coupled to said base at the second side of the main body and comprising a plurality of second power and/or signal connection means connected to said first power and/or signal connection means; wherein said electronic protection and control unit further comprises: a first cover fixed to the first part of the casing of said removable unit, the first cover forming a front cover of the assembly including the base and the removeable unit; and a second cover associated with the first side of the main body of said base, the second cover mounted on the rear part of the base.