Delta Electronics is a major supplier of power supplies and power supply accessories, including their DRP024V480W3BN Industrial DIN power supply. This product lists a voltage input range of 360 to 600 VAC 3-phase, but upon arrival we’ve had a few customers notice the product’s label says 400-500VAC instead. Is there a reason for this discrepancy?
The 400-500VAC is the power supply’s nominal range, where it functions best. It can still accept any input voltage between 360VAC and 600VAC, though at this point you may want to test your set-up to ensure the power supply is delivering, especially if you’re close to its maximum possible output values.