Can you help me guys know the difference between Ith & Iu rating in MCCB?
I have an MCCB with the rating of Ue = 660 volts & Iu = 1250 Amps
It as a rating also of Ith = 800 amps max @ 45 deg C & Ir = 6300.
I have a motor for my chiller which requires a MCCB wit
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