Which of the following is an acceptable temporary replacement for a run capacitor rated at 35MFD @ 440VAC?

When considering a temporary replacement for a run capacitor, it is essential to ensure that the capacitance rating is as close to the original as possible, while still adhering to allowable tolerances. In this case, the run capacitor is rated at 35MFD (microfarads) and 440VAC (volts alternating current).

The ideal temporary replacement should be within a tolerance range that does not significantly impact performance or reliability. A typical acceptable tolerance for capacitors can be around ±10%. For a capacitor rated at 35MFD, this means any replacement between approximately 31.5MFD and 38.5MFD would likely be acceptable.

The choice of 37.5MFD aligns well within this acceptable tolerance range, providing a capacitance that is similar enough to ensure that the system operates efficiently, maintaining proper motor starting and running characteristics. This close match to the original capacitance allows for the continuation of normal operation without risking damage or inefficiency.

The other options, while they may meet voltage ratings, deviate too far from the acceptable capacitance range, potentially leading to insufficient performance or overloading the system components. Thus, 37.5MFD @ 440VAC not only meets the voltage requirement but is also