Description
Floor mounted, and for use with single-door applications, the Siemens Model SDH-5 Series fire-door holder is for self-closing, swinging, fire and smoke-barrier doors. The unit includes a single-faced electromagnet assembly encased in an attractive housing, door-armature assembly, and door plate. When installed with provided gaskets, the electromagnet portion consists of a floor plate and floor housing that forms a waterproof, electrical junction box. Incoming conduit connects directly into floor plate and forms and additional means (four [4] concrete anchor bolts are provided) for anchoring the unit to the floor. The magnet has a holding force of approximately 25 lbs. Model SDH-5D is rated at 24VDC.