Panel transfer switch

A transfer switch for transferring a supply of electrical power to a load between a utility source and a generator that generates electrical power when started, the load interconnected to the utility source through a first circuit breaker and to the generator through a second circuit breaker, each of the circuit breakers movable between an on position and an off position, the transfer switch comprising:

• a first arm movable between a first position and a second position wherein the first arm is engageable with the first circuit breaker for moving the first circuit breaker from the off position to the on position;
• a second arm movable between a first position and a second position engageable with the second circuit breaker for moving the second circuit breaker from the off position to the on position;
• a bar extending between the first and second circuit breakers, the bar moving the second circuit breaker to the off position when the first circuit breaker moves to the on position and moving the first circuit breaker to the off position when the second circuit breaker moves to the on position;
• and
• a rotatable arm selectively engageable with one of the first and second arms to move the one of the first and second arms to the second position;
• the rotatable arm being axially movable between a retracted position and an extended position;
• wherein the transfer switch includes a biasing structure for urging the rotatable arm towards the extended position.

A transfer switch for transferring a supply of electrical power to a load between a utility source and a generator that generates electrical power when started, the load interconnected to the utility source through a first circuit breaker and to the generator through a second circuit breaker, each of the circuit breakers movable between an on position and an off position, the transfer switch comprising:

• a first arm movable between a first position and a second position wherein the first arm is engageable with the first circuit breaker for moving the first circuit breaker from the off position to the on position;
• a second arm movable between a first position and a second position engageable with the second circuit breaker for moving the second circuit breaker from the off position to the on position;
• a rotatable arm selectively engageable with one of the first and second arms to move the one of the first and second arms to the second position;
• a motor operatively connected to the rotatable arm for rotating the arm;
• a motor control operatively connected to the motor for actuating the motor;
• and
• an actuation element operatively connected to the rotatable arm, the actuation element communicating with the motor control for controlling actuation of the motor;
• wherein the rotatable arm is axially movable between a retracted position and an extended position and wherein the control structure includes a biasing structure for urging the rotatable arm towards the extended position.

A transfer switch for transferring a supply of electrical power to a load between a utility source and a generator that generates electrical power when started, the load interconnected to the utility source through a first circuit breaker and to the generator through a second circuit breaker, each of the circuit breakers movable between an on position and an off position, the transfer switch comprising:

• a first arm movable between a first position and a second position wherein the first arm is engageable with the first circuit breaker for moving the first circuit breaker from the off position to the on position;
• a second arm movable between a first position and a second position engageable with the second circuit breaker for moving the second circuit breaker from the off position to the on position;
• a control structure for urging the first and second arms to the second positions;
• and
• a bar extending between the first and second circuit breakers, the bar moving the second circuit breaker to the off position when the first circuit breaker moves to the on position and moving the first circuit breaker to the off position when the second circuit breaker moves to the on position;
• wherein:
• the control structure includes a rotatable arm selectively engageable with one of the first and second arms to move the one of the first and second arms to the second position;
• and
• the rotating arm includes a terminal end and a bearing rotatably mounted to the terminal end of the rotatable arm, the bearing engageable with the first and second arms.

A transfer switch for transferring a supply of electrical power to a load between a utility source and a generator that generates electrical power when started, the load interconnected to the utility source through a first circuit breaker and to the generator through a second circuit breaker, each of the circuit breakers movable between an on position and an off position, the transfer switch comprising:

• a first arm movable between a first position and a second position wherein the first arm is engageable with the first circuit breaker for moving the first circuit breaker from the off position to the on position;
• a second arm movable between a first position and a second position engageable with the second circuit breaker for moving the second circuit breaker from the off position to the on position;
• a bar extending between the first and second circuit breakers, the bar moving the second circuit breaker to the off position when the first circuit breaker moves to the on position and moving the first circuit breaker to the off position when the second circuit breaker moves to the on position;
• and
• a rotatable arm selectively engageable with one of the first and second arms to move the one of the first and second arms to the second position, the rotatable arm including a terminal end and a bearing rotatably mounted to the terminal end of the rotatable arm, the bearing engageable with the first and second arms.

A transfer switch for transferring the supply of electrical power to a load between a utility source and a generator that generates electrical power when started, the load interconnected to the utility source through a first circuit breaker and to the generator through a second circuit breaker, each of the circuit breakers movable between an on position and an off position, the transfer switch comprising:

• a first arm movable between a first position and a second position wherein the first arm is engageable with the first circuit breaker for moving the first circuit breaker from the off position to the on position;
• a second arm movable between a first position and a second position engageable with the second circuit breaker for moving the second circuit breaker from the off position to the on position;
• a rotatable arm selectively engageable with one of the first and second arms to move the one of the first and second arms to the second position;
• a motor operatively connected to rotatable arm for rotating the arm;
• and
• a motor control operatively connected to the motor for actuating the motor;
• an actuation element operatively connected to the rotatable arm, the actuation element communicating with the motor control for controlling actuation of the motor;
• wherein:
• the rotatable arm is axially movable between a retracted position and an extended position;
• the control structure includes a biasing structure for urging the rotatable arm towards the extended position;
• and
• the rotatable arm includes a terminal end and a bearing rotatably mounted to the terminal end of the rotatable arm, the bearing engageable with the first and second arms.

A transfer switch for transferring a supply of electrical power to a load between a utility source and a generator that generates electrical power when started, the load interconnected to the utility source through a first circuit breaker and to the generator through a second circuit breaker, each of the circuit breakers movable between an on position and an off position, the transfer switch comprising:

• a first arm movable between a first position and a second position wherein the first arm is engageable with the first circuit breaker for moving the first circuit breaker from the off position to the on position;
• a second arm movable between a first position and a second position engageable with the second circuit breaker for moving the second circuit breaker from the off position to the on position;
• and
• a control structure for urging the first and second arms to the second position, the control structure including a rotatable arm selectively engageable with one of the first and second arms to move the one of the first and second arms to the second position;
• a motor operatively connected to the rotatable arm for rotating the arm;
• first and second switches movable between off positions and on positions, the positions of the switches controlling actuation of the motor;
• a cam disk operatively connected to the rotating arm for rotational movement therewith, the cam disk including a first camming surface engageable with the first switch for actuating the first switch and a second camming surface engageable with the second switch for actuating the second switch.