What stands out about the unbranded brand is that the contact ratings are printed large, so you can read them fast.
Current Sensing Switch AC 0-30A Digital Monitoring Relay 2.5×0.98×1.85in
like that the brand is NOFUEL, because it shows up clearly in my parts inventory.
What stands out about this one is the AMERICAN ZETTLER / MCE signature, which many buyers look for.