Yes, it is generally safe to leave a dishwasher on after the cycle has ended. Most modern dishwashers have built-in safety features and energy-saving modes that allow them to remain idle after the cleaning cycle without causing any harm.
After the dishwasher has completed its cycle, it typically enters a standby mode, where it consumes minimal power while waiting for the user to unload the clean dishes. The duration for which you can leave the dishwasher on after the cycle has ended varies among different models and brands.
In most cases, dishwashers will remain in standby mode for several hours (usually around 4-8 hours) before they automatically shut off to conserve energy. This allows you some flexibility to unload the dishes at your convenience without needing to restart the dishwasher if you don't get to it immediately.
However, if you want to conserve energy, it's a good practice to turn off the dishwasher completely when you're done using it. Leaving it on standby for extended periods may still consume a small amount of electricity, which can add up over time.
As always, it's essential to refer to the dishwasher's user manual for specific instructions and guidelines from the manufacturer regarding its operating and standby durations. Following the manufacturer's recommendations will help ensure the proper and safe functioning of your dishwasher.