Description Get the exact size, strength and power configuration but with off-the-shelf speed and convenience by choosing a magnet from our Heavy Duty Round 24-Volt DC electromagnet line. AEC Magnetics' DCS-400E-24C is rated at 780 pounds of holding power in a 4.00 inch diameter by 1.25-inch in height case. It weighs 7.0 pounds, draws 22 watts and uses an E-style cord and 1/4-20 threads on 1.0 inch center. Works best for smooth, flat ferrous surfaces. The best feature of these reliable magnets are they are built to last, tested before shipping and guaranteed. Top or side power inlets, variety of mating disconnect cords, sizes and holding powers, we have the right magnet to ensure your process works exactly as you wish.