Abstract: An interlock arrangement is configured for controlling a pair of aligned switches connected to two alternate power supplies. An interlock member is positioned between the aligned switches and is moveable between a first interlock position and a second interlock position. The interlock member has first and second blocking components. In the first interlock position, the first switch is ON and the second blocking component prevents movement of the second switch to an ON position, and the interference between the first switch and first blocking component prevents the interlock member from moving to the second interlock position. In the second interlock position, the second switch is ON and the first blocking component prevents movement of the first switch to an ON position, and the interference between the second switch and second blocking component prevents the interlock member from moving to the first interlock position.

Abstract: An electrical box cover including a body for securing a plurality of electrical connections therein, a cover having a door, the door having a first end with at least one male hinge, at least one female hinge attached to the cover, and wherein the at least one male hinge is removably connected with the at least one female hinge to selectively open and close the door.

Abstract: An automatic transfer switch to automatically electrically connect an electrical panel to a second power source, e.g., an electric generator, during interruption or failure of a first power source, e.g., a utility power supply, includes a powered interlock arrangement that is operative to prevent the electrical panel from being electrically connected to both power sources simultaneously.

Abstract: A transfer switch for interconnection in a power supply system for an electrical load, such as a traffic signal, for selectively switching between primary and alternate power sources. The transfer switch includes a housing having a cover that is movable between open and closed positions for selectively providing access to an interior. An input receptacle is configured to engage an electrical connector of the alternate power source. The input receptacle is movable between a first position for facilitating engagement of the connector with the receptacle when the cover is open, and a second position when the cover closed. A selector switch is contained within the interior and interconnected with the load and the primary and alternate power sources. The selector switch selectively connects the primary power source and the alternate power source to the load, and the cover prevents access to the selector switch when the cover is closed.

Abstract: An automatic transfer switch to automatically electrically connect an electrical panel to a second power source, e.g., an electric generator, during interruption or failure of a first power source, e.g., a utility power supply, includes a powered interlock arrangement that is operative to prevent the electrical panel from being electrically connected to both power sources simultaneously.

Abstract: A system and method of interlocking a plurality of electrical panel switches includes an interlock assembly having an interlock. The interlock has a first position that allows connection of one of utility power and power from an alternate power supply, such as a generator, to the electrical panel and prevents connection of the other of the utility power and alternate power. The interlock has a second position that allows connection of the other of the utility power and alternate power and prevents connection of one of the utility power and alternate power to the electrical panel. The interlock also is constructed to control the positioning and sequence of operation of neutral connections between the power supplies and the electrical panel.

Abstract: A generator has a receiver adapted to receive an electrical accessory in a manner that allows the electrical accessory to be quickly removed when desired by a user. The receiver allows an electrical accessory, such as a parallel connection kit, transfer switch, or work light, to be securely mounted to the generator, but removed when desired without the need for any tools.

Abstract: An interlock arrangement operatively associated with utility and generator side switches of an electrical panel including a first main switch associated with the first power supply and a second main switch associated with the second power supply. The interlock arrangement includes a first neutral switch associated with the first power supply, and a second neutral switch associated with the second power supply. A lockout sequencer arrangement has a first lockout that restricts simultaneous switching of the first and the second neutral switch, a second lockout configured to engage the first lockout to restrict movement of the first lockout when the first main switch is a conductive position, and a third lockout configured to engage the first lockout to restrict movement of the first lockout when the second main switch is in a conductive position.

Abstract: A power meter has a connector block with prongs for plugging the connector block into a wall socket and also has a socket for receiving the plug of a power cord of an electrical device. A display unit is tethered to the connector block such that values associated with energy usage of the electrical device may be shown on the display but remote from the wall socket. The power meter may calculate a cost associated with the energy usage of the device and display the cost information on the remote display.

Abstract: A combination switch and circuit breaker is operative as both a switch and circuit breaker when connecting a load to an auxiliary power supply, but is only operative as a switch when connecting the load to a main power supply. The combination switch and circuit breaker has a switch component for selectively connecting a load center branch circuit to either a main power supply or an auxiliary power supply. During main power interruption, for example, the switch component of the combination switch and circuit breaker may electrically connect a branch circuit of the load center to an auxiliary power supply, with a circuit breaking component providing current overload protection. However, during normal main power operation, the switch component electrically connects the load center branch circuit to main power, with a branch breaker and a main breaker providing current overload protection for the branch circuit.

Abstract: An interlock arrangement operatively associated with utility and generator side switches of an electrical panel including a first main switch associated with the first power supply and a second main switch associated with the second power supply. The interlock arrangement includes a first neutral switch associated with the first power supply, and a second neutral switch associated with the second power supply. A lockout sequencer arrangement has a first lockout that restricts simultaneous switching of the first and the second neutral switch, a second lockout configured to engage the first lockout to restrict movement of the first lockout when the first main switch is a conductive position, and a third lockout configured to engage the first lockout to restrict movement of the first lockout when the second main switch is in a conductive position.

Abstract: An interlock assembly for use with a pair of aligned multiple switch assemblies configured to control the supply of electrical power to an electrical panel. Each multiple switch assembly includes a two-pole transfer switch for a pair of “hot” conductors, and a single-pole transfer switch for a neutral connection. The interlock assembly is movably mounted relative to both of the multiple switch assemblies, and is configured to control a sequence of connection and interruption of each neutral connection relative to switching the hot conductors associated with switching each multiple switch assembly. The interlock assembly prevents the “hot” conductors of each multiple switch assembly from being connected without the associated respective neutral connection having been made in advance. The interlock assembly also ensures that the neutral connection of each multiple switch assembly is interrupted without previous interruption of the connection of the respective “hot” conductors.

Abstract: An electrical panel is operable to receive electrical power from a first power supply and a second power supply. The electrical panel includes a neutral bus conductor having a stab configured to engage one or more switching devices and a separation formed in a bus conductor to electrically isolate one of the stabs.

Abstract: A generator has an accessory mounting member adapted to mount an electrical accessory that provides isolation of the electrical accessory from the generator such that transfer of vibratory forces generated during operation of the generator is mitigated. The accessory mounting member allows an electrical accessory, such as a parallel connection kit, transfer switch, or work light, to be securely mounted to the generator, yet isolated from the vibrations that occur during operation of the generator.

Abstract: An interlock assembly for use with a pair of aligned multiple switch assemblies configured to control the supply of electrical power to an electrical panel. Each multiple switch assembly includes a two-pole transfer switch for a pair of “hot” conductors, and a single-pole transfer switch for a neutral connection. The interlock assembly is movably mounted relative to both of the multiple switch assemblies, and is configured to control a sequence of connection and interruption of each neutral connection relative to switching the hot conductors associated with switching each multiple switch assembly. The interlock assembly prevents the “hot” conductors of each multiple switch assembly from being connected without the associated respective neutral connection having been made in advance. The interlock assembly also ensures that the neutral connection of each multiple switch assembly is interrupted without previous interruption of the connection of the respective “hot” conductors.

Abstract: An interlock assembly for use with a pair of aligned multiple switch assemblies configured to control the supply of electrical power to an electrical panel. Each multiple switch assembly includes a two-pole transfer switch for a pair of “hot” conductors, and a single-pole transfer switch for a neutral connection. The interlock assembly is movably mounted relative to both of the multiple switch assemblies, and is configured to control a sequence of connection and interruption of each neutral connection relative to switching the hot conductors associated with switching each multiple switch assembly. The interlock assembly prevents the “hot” conductors of each multiple switch assembly from being connected without the associated respective neutral connection having been made in advance. The interlock assembly also ensures that the neutral connection of each multiple switch assembly is interrupted without previous interruption of the connection of the respective “hot” conductors.

Abstract: A neutral connection arrangement for use with a pair of aligned transfer switch assemblies of an electrical panel. The first transfer switch assembly is operable to regulate electrical connection of a neutral conductor of a utility service, and the second transfer switch assembly is operable to connect a neutral conductor of a generator. The neutral connection arrangement may be in the form of a neutral bracket apparatus that includes a bracket having a first mount member, a second mount member, and a third mount member. The first mount member is attached at the first neutral bus of the electrical panel, and the second mount member is attached at the second neutral bus of the electrical panel located opposite the first neutral bus. An elongated body portion electrically connects the first and second mount members. The third mount member is generally U-shaped and extends from the elongated body portion for electrical connection to the first and second transfer switch assemblies.

Abstract: An electrical switch assembly is provided for use as a single-pole, double-throw switch. The assembly includes a housing having an interior cavity. First and second stationary contacts are positioned on one side of the interior cavity, and third and fourth stationary contacts are positioned on the other side of the interior cavity. A conductive member is interconnected between the first and third stationary contacts. A movable contact member is configured in one operative position to complete an electrical path between the first and the second stationary contacts, configured in a second operative position to complete an electrical path between the third and the fourth stationary contacts, and configured in an inoperative or OFF position to be electrically disconnected from all four stationary contacts. The improved switch assembly eliminates a center contact disposed in the housing, such that the switch assembly is less cumbersome and costly to manufacture and assemble.

Abstract: An interlock arrangement for a pair of aligned switches, for preventing both switches from being on at the same time, includes a feature that prevents the switches from being inadvertently disengaged from mounting structure associated with an electrical panel to which the switches are mounted. The interlock arrangement includes an interlock base member that extends through aligned openings defined by the switch operating members. A pair of inner engagement members interact with the switch operating members so as to ensure that the switch operating members cannot both be in the ON position. An outer engagement member is secured to the interlock base member outwardly of each switch operating member. The interlock base member overlies and engages edges defined by the switches and the outer engagement members engage the switch operating members, to prevent inadvertent removal of the switches.