1. An inline electrical circuit breaker system for an electrical extension cable structure including a first electrical extension cable having a female terminal and a second electrical extension terminal having a male terminal; the circuit breaker system comprising;

an intermediate coupler having opposite end terminals adapted for electrically coupling said female terminal of said first electrical extension cable to said male terminal of said second electrical extension cable;

a circuit breaker;

a recess formed in said coupler and having a pair of opposite end walls, said recess being adapted for receiving said circuit breaker;

a first power bus extending from one of said opposite end terminals through an adjacent one of said opposite end walls and partially into said recess;

a second power bus extending from another of said opposite end terminals through an adjacent one of said pair of opposite end walls and partially into said recess; and

means for coupling said first and second power buses to said circuit breaker for establishing a current path through said coupler.

2. The system of claim 1 and including means for releasably latching said circuit breaker into said recess.

3. The system of claim 2 and including means for ejecting said circuit breaker

from said recess upon release of said latching means.

4. The system of claim 3 wherein said latching means comprises at least one spring catch mounted in one of said pair of opposite end walls.

5. The system of claim 3 wherein said ejecting means comprises a spring positioned in a bottom of said recess and aligned with and compressed by said circuit breaker when said circuit breaker is in an assembled position in said recess whereby release of said latching means allows said spring to push said circuit breaker outwardly of said recess.

6. The system of claim 1 and including a plurality of pairs of first and second power buses extending into said recess and a corresponding plurality of circuit breakers adapted for installation in said recess for coupling respective pairs of said first and second power buses.