The 9905-004 is one of the models in the series that is unable to provide users with any of the voltage matching functionalities that may be needed. The standard frequency range for this unit ranges between 50 to 60 hertz, and the phase angle is given +/- 5 percent variation. This Synchronizer unit is outfitted with an input voltage (both for the bus and generator) that ranges from 115 to 300 volts of alternating current. The voltage tolerance that the 9905-004’s inputs have is a rate of +/- 10 percent.
While operational, the power consumption rate is a maximum of 5 watts. The outputs are outfitted with a high amount of control compatibilities, such as a high impedance for 2301 load sharing controls, a low impedance for 2301A/EPG/2500 load sharing control. The 9905-004 is installed with a set of selectable operating modes: Run, Check, Permissive, and Off. There is an automatic reset capability. It should also be stated that the 9905-004 is a phase-locked-loop synchronizer. It also dedicates itself to be a good fit for frequency and phases. AX Control INC. is able to buy, sell, repair, and resell this part as well as many others like it.