I don't know if the hours marked, is the rated life of this capacitor.
h/cl isn't a life rating and i don't know what it is means.
But capacitors don't have an unlimited life.
45uF makes it a motor run capacitor, most likely for an airconditioner, as this is a fairly common value ( though I see them from 30 to 60uF depending on make and model) and normally housed inside the condenser, either above the compressor on the control panel, or next to the thermostat in window/wall units.
The rated life given there is a estimate, and is dependent on both line voltage and operating temperature, with higher voltages and temperatures tending to cause excessive self healing and a reduction in capacitance. Normally the capacitor loses capacitance because the insulating polycarbonate film breaks down and shorts the electrodes together. This causes a brief high current pulse that burns away the thin aluminium film on the surface, and this isolates the faulty spot. If you unwind a faulty one you will see large areas where the foil is missing or discoloured, although some fail and get hot enough to cause the whole unit to melt into a grey smelly blob.
These must be installed where there is a free space above the faston connectors, as they are designed to pop the end cap off during fault conditions so as to fail safely open circuit. If you prevent this ( either by pushing up against a panel or by the wiring being inflexible) there is a chance the unit will catch fire from the overload current.
SeanB~1: Sorry if i being off topic, but the majority of Carmel hospital, are "Air conditioned" not by air conditioners, but by fan coils connected through a complicated water basis to a water cooling system called a chiller. So this capacitor is most likey related to the compressors of the chillers.
The capacitor is use to correct the power factor that is being used on the motor. The motor is using pure inductive load and that takes more power than it looks. I just learned that from the summer class.
If anyone wants to read about power factor and how PF correction works, I recommend this page (You need some understanding of complex numbers to understand all of it)
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Will it go bad after these hours
h/cl isn't a life rating and i don't know what it is means.
But capacitors don't have an unlimited life.
The rated life given there is a estimate, and is dependent on both line voltage and operating temperature, with higher voltages and temperatures tending to cause excessive self healing and a reduction in capacitance. Normally the capacitor loses capacitance because the insulating polycarbonate film breaks down and shorts the electrodes together. This causes a brief high current pulse that burns away the thin aluminium film on the surface, and this isolates the faulty spot. If you unwind a faulty one you will see large areas where the foil is missing or discoloured, although some fail and get hot enough to cause the whole unit to melt into a grey smelly blob.
These must be installed where there is a free space above the faston connectors, as they are designed to pop the end cap off during fault conditions so as to fail safely open circuit. If you prevent this ( either by pushing up against a panel or by the wiring being inflexible) there is a chance the unit will catch fire from the overload current.