Current trip unit for circuit breaker

A trip unit, comprising:

• a current carrying element;
• an oscillator having a first position and a second position;
• an anchor having a tripped position and an untripped position;
• a first magnetic yoke surrounding said current carrying element and said anchor, wherein a first magnetic flux flowing through said first magnetic yoke moves said anchor into said tripped position;
• and
• a second magnetic yoke surrounding said current carrying element and said oscillator, wherein a second magnetic flux flowing through said second magnetic yoke moves said oscillator into said first position or into said second position.

A trip unit, comprising:

• a current carrying element;
• an anchor having an up position and a down position;
• an oscillator having a first position and a second position, wherein when said oscillator is in said first position said anchor is permitted to move into said down position, and when said oscillator is in said second position said anchor is blocked from moving into said down position;
• at least one magnetic yoke surrounding said current carrying element, said anchor, and said oscillator, wherein said at least one magnetic yoke provides a magnetic current to move said movable anchor into said down position, and said at least one magnetic yoke provides a magnetic current to move said oscillator into said first or second positions.
• a blockade latch connected to said oscillator, wherein said blockade latch interacts with said anchor to prevent downward movement of said anchor;
• and
• a bumper, wherein said bumper is disposed about said anchor and is contacted by said blockade latch to prevent downward movement of said anchor.