Electromechanical assembly controlled by sensed voltage

[0029]Reference is made below to the drawings, where the same reference numbers used throughout different figures designate the same or similar components.

[0030]FIG. 1 depicts (by way of example) one embodiment of an electronics rack 100 with a plurality of electronic subsystems or drawers 101 to be cooled. In the embodiment illustrated, electronic systems, subsystems 101 are air-cooled by cool airflow 102 ingressing via an air inlet 110, and exhausting out an air outlet 111 as hot airflow 103. One or more air-moving assemblies 108 may be provided at the air inlet sides of electronic subsystems 101 and / or one or more air-moving assemblies 109 may be provided at the air outlet sides of electronic subsystems 101 to facilitate airflow through the individual subsystems 101 as part of the cooling apparatus of electronics rack 100. By way of example, air-moving assemblies 108 at the air inlets to electronic subsystems 101 may be or include axial fan assemblies, and air-moving assemblies 10