Service life

The service life or life expectancy of an appliance describes the service life in operating hours. This is the period of time during the operation of an appliance until the first signs of wear (e.g. dried-out capacitors) occur. The component with the lowest life expectancy in an appliance determines the service life of the entire appliance.
The design of the device, the quality of the components used and the operating conditions are responsible for achieving a long service life:
– Place critical components in cool locations
– Do not obstruct the air flow
– Dissipate generated heat well to the outside
– Place the power supply unit in a cool place in the switch cabinet
An important design guideline is the minimum life expectancy of 50,000 hours. This is defined at rated output current, +40°C ambient temperature and rated input voltage. The service life hours must not be confused with the MTBF hours.