Abstract: An electrical contactor, and more particularly, but not exclusively, contactors having improved noise performance.

Abstract: Power control using photovoltaic module sourced power.

Abstract: A system for combining multiple direct current power sources is provided. The system is operable to combine multiple feeds from an array of power generating elements, such as solar panel arrays and combine the feeds into a single voltage output. The system includes a current monitoring assembly operable to monitor the current from each input to evaluate whether there is a malfunction or other problem associated with a particular output. An alarm or other signal can be provided to inform the operator of which power generating element in the array need to be analyzed.

Abstract: A system for combining multiple direct current power sources is provided. The system is operable to combine multiple feeds from an array of power generating elements, such as solar panel arrays and combine the feeds into a single voltage output. The system includes a current monitoring assembly operable to monitor the current from each input to evaluate whether there is a malfunction or other problem associated with a particular output. The system also includes a noise detection assembly for monitoring the current to evaluate whether there is a malfunction or other problem. An alarm or other signal can be provided to inform the operator of which power generating element in the array need to be analyzed in response to the output from the current monitoring assembly and the noise detection assembly.