SDC's EH series magnetic door holders are designed to hold doors open and release the door by remote switch or fire life safety command center activation. Primary application includes holding and releasing of fire rated doors that are required to provide a barrier for fire and smoke in an emergency or the convenience of door closure by remote control. Choice of 25, 30, 35 or 40lb holding force determined by units specified voltage. Reduced power supply requirements and energy costs due to low power consumption (15mA to 40mA). Field selectable high holding force comes standard, reducing stock or need to special order high holding force. Screw terminal block input connections for simple and neat wiring. Innovative installation eliminates the need for secondary alignment adjustments. Ball pivot assembly enables full plate contact and holding force. Optional adjustable rod compensate for extreme misalignment up to four". Slotted mounting holes enable adjustment of magnet centerline.