It is necessary to keep relays under aging test for 25 days consecutive to verify whether their working status are steady or not.

And we'd like to draw your attention to the fact that KINGSINE brand relay test set model K68i can offer relays factories the right solution.

K68i Online Experiment Conditions for 25 days consecutive:

Current output 3*5A, current load resistance is 3*2.5Ω

Voltage output 3*100V, voltage load resistance is 3*2800Ω

You are welcome to contact us for more detail.