1. The maximum current meter is 4 the rated current, the product is smart meters, overload capacityUp to 12 the base reference current.2. This product is measured by LCD digital power, no reset button, to avoid human tampering with the data Rated current:5AMaximum current: 100APulse frequency: 800imp / kwhPulse LED indicates working of meter. Pulse output with optical coupling isolation.35mm DIN rail installationtype: AColour:As ShownMaterial:plasticPackage Contents:1 x Energy meter DDS546COnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.