Abstract:
An electric switch having fixed contacts and rotary movable contacts in pairs. The movable contact have a central portion coupled to a rotary member and end portions adapted to contact the fixed contacts. The end portions extend from the central portion at an angle. The movable contact pairs lie in substantially the same plane.
Abstract:
A terminal apparatus for connecting an electrical conductor to electric equipment. A terminal is electrically coupled to the electric equipment and has a hole formed therethrough. A first securing member has a head and a shaft passing through the hole formed in the terminal. A first conductor receiving area is defined between the head and a first side of the terminal. A second securing member selectively engages the shaft on a side of the terminal opposite the head of the first securing member. A second conductor receiving area is defined between the second securing member and a second side of the terminal. A holder is coupled to the terminal and disposed on a side of the terminal corresponding to the second securing member. The holder retains the second securing member at a position in which the second securing member can be engaged with an end of the shaft when the shaft is inserted through the hole formed in the terminal.
Abstract:
A method for restricting travel of a moving contact in a lighting contactor is provided. The lighting contactor includes the moving contact and a contact carrier. The method includes the steps of providing a spacer, and a biasing member and positioning the biasing member though the spacer. The method also includes installing the biasing member and the spacer in the contact carrier.
Abstract:
A field configurable contactor is disclosed. The contactor preferably includes a plurality of spaces adapted to receive any number, up to its limit, of contact modules. Each contact module preferably includes a pair of contacts and a spring biased cam follower which opens and closes the contact pair when a cam profile of the contactor moves according to energization or de-energization of the contactor. The contact module can be either “normally open” or “normally closed” depending on its initial placement onto the contactor relative to the cam profile. A latch assembly in the contactor may hold the contactor mechanically during de-energization.
Abstract:
An energy storage mechanism for a circuit breaker motor operator is disclosed. The energy storage mechanism has a first elastic member; a first fixture having a plurality of slots therein, the first fixture positioned in the first elastic member; a second fixture having a plurality of members defining an aperture; a second elastic member engaged to the second fixture and positioned within the aperture; wherein the second fixture is engaged to the first fixture. A motor operator for a molded case circuit breaker is disclosed. The motor operator has an energy storage mechanism for assuming a plurality of states, each state having a prescribed amount of energy stored in the energy storage mechanism; a mechanical linkage system coupled to the energy storage mechanism and to the molded case circuit breaker; wherein the molded case circuit breaker is operative to assume a plurality of positions; wherein each position of the molded case circuit breaker is associated with a corresponding state of the energy storage mechanism; a motor drive assembly connected to the mechanical linkage system for driving the energy storage mechanism from a first state of the plurality of states to a second state of the plurality of states; and an energy release mechanism coupled to the mechanical linkage system for releasing the energy stored in the energy storage mechanism wherein the energy storage mechanism returns from the second state of the plurality of states to the first state of the plurality of states.