Circuit breaker lockout subassemblies, and circuit breakers and methods including same

A circuit breaker, comprising:

• an operating handle movable to a RESET position and to an ON position;
• electrical contacts being in a closed state in response to the operating handle being in the ON position and being in an open state in response to the operating handle being in the RESET position;
• electronic circuitry configured to perform at least one test in response to the operating handle moving to the RESET position and indicating a pass or fail of the at least one test;
• a lockout subassembly having a locked state configured to prevent the operating handle from moving to the ON position in response to the at least one test indicating a fail and having an unlocked state configured to enable the operating handle to move to the ON position in response to the at least one test indicating a pass, wherein the lockout subassembly includes:
• a rotatable latch bar including a lock portion, and
• a latch device configured to be receivable in the lock portion,
• wherein the rotatable latch bar positions between a first rotational position and a second rotational position, and
• wherein the rotatable latch bar includes a cam configured to contact a switch in response to the rotatable latch bar rotating to the second rotational position;
• and
• a ledge, wherein the latch device is biased to contact the ledge when the latch device is received in the lock portion.

A circuit breaker, comprising:

• an operating handle movable to a RESET position and to an ON position;
• electrical contacts being in a closed state in response to the operating handle being in the ON position and being in an open state in response to the operating handle being in the RESET position;
• electronic circuitry configured to perform at least one test in response to the operating handle moving to the RESET position and indicating a pass or fail of the at least one test;
• a lockout subassembly having a locked state configured to prevent the operating handle from moving to the ON position in response to the at least one test indicating a fail and having an unlocked state configured to enable the operating handle to move to the ON position in response to the at least one test indicating a pass, wherein the lockout subassembly includes:
• a rotatable latch bar including a lock portion, and
• a latch device configured to be receivable in the lock portion,
• wherein the rotatable latch bar positions between a first rotational position and a second rotational position, and
• wherein the lock portion includes a gap configured to receive at least a portion of the latch device;
• and
• a ledge, wherein the latch device is biased to contact the ledge when the latch device is received in the lock portion.