Abstract: An early break bypass switch provides a modular system for bypassing an inverter when needed without allowing switching induced damage to the inverter. In an embodiment of the invention, a shaft-mounted switch provides rotatable cams and sliding followers for positive opening contacts while providing an auxiliary switch section for breaking and making contact to an inverter controller in a specific sequence relative to inverter power. In this way, the inverter is both isolated from the line power and also protected during switching from being damaged by switching-induced spikes and transient signals and surges.

Abstract: An apparatus and method for using an AC wireless switch is disclosed. The AC wireless switch may include an AC powered transmitter capable of transmitting signals wirelessly, an AC powered receiver capable of receiving signals wirelessly, and at least one switch in electrical communication with the transmitter and capable of providing a signal to the transmitter, indicating the activation and deactivation of a device and/or the transmitter. The method for wirelessly switching an AC powered device using the AC wireless switch, comprises the steps of: transmitting a first signal to activate the transmitter, requesting to activate the AC powered device, transmitting a second signal from the transmitter to the receiver wirelessly, receiving the second signal by the receiver, and enabling AC power to activate the AC powered device. The AC wireless switch may be also capable of disabling power to the AC powered device upon the request to deactivate the AC power device.

Abstract: A disconnect switch that provides a simple and economical means for preventing the possibility of stray/surge current from damaging the solid state components of an inverter drive is provided. The disconnect switch includes early break auxiliary contact(s) that open before the standard power contacts when the switch is turned off by an operator and close after the standard power contacts when the switch is turned on by an operator.

Abstract: A generator transfer switching system having a multi-position generator transfer switch that enables a homeowner or user to manually select a group of circuits from among a number of pre-selected groups of circuits for transfer from utility company service to a standby generator via a single cam-operated switch. The multi-position generator transfer switch is comprised of a contact block having multiple stages with a shaft and a handle to turn the shaft. Each stage contains electrical contacts and cams operably connected to the contacts. The cams are mounted on a shaft running through the center of the block and connected at one end to a handle. The handle can be manually turned to switch a group of selected household circuits from the utility company service to an electric generator service. The switch eliminates the potential for electrical back feed from either the utility company to the generator or from the generator to the utility company.

Abstract: A generator transfer switching system having a multi-position generator transfer switch that enables a homeowner or user to manually select a group of circuits from among a number of pre-selected groups of circuits for transfer from utility company service to a standby generator via a single cam-operated switch. The multi-position generator transfer switch is comprised of a contact block having multiple stages with a shaft and a handle to turn the shaft. Each stage contains electrical contacts and cams operably connected to the contacts. The cams are mounted on a shaft running through the center of the block and connected at one end to a handle. The handle can be manually turned to switch a group of selected household circuits from the utility company service to an electric generator service. The switch eliminates the potential for electrical back feed from either the utility company to the generator or from the generator to the utility company.

Abstract: An inverter by pass safety switch for rerouting electrical power either through or around AC variable frequency inverter drives during electrical disturbances, thus allowing a motor to continue operation. The switch works in a mechanical fashion, and comprises a contact block containing electrical contacts and cams operably connected to the contacts and mounted on a shaft that can be turned by an operator. The cams are shaped and mounted on the shaft in such a way to provide a desired switching pattern when the shaft is manually rotated.

Abstract: An inverter by pass safety switch for rerouting electrical power either through or around AC variable frequency inverter drives during electrical disturbances, thus allowing a motor to continue operation. The switch works in a mechanical fashion, and comprises a contact block containing electrical contacts and cams operably connected to the contacts and mounted on a shaft that can be turned by an operator. The cams are shaped and mounted on the shaft in such a way to provide a desired switching pattern when the shaft is manually rotated.