The MMTC HBF is a NEMA 1 interior-rated, flush-mount key switch with standard mortise cylinder, designed for indoor access-control applications in gate and door operator systems. Featuring a three-position center-return OPEN-CLOSE SPDT contact configuration, the HBF mounts into a standard single-gang electrical back box or J-box for a clean flush installation. The stainless steel faceplate provides durability and a professional finish. This base model uses a standard mortise cylinder and does not include a stop button or tamperproof hardware. Rated 15A at 125/250V AC, the HBF is compatible with a wide range of gate operators and access-control controllers.
A: The HBF uses a standard mortise cylinder. If you need a Best interchangeable core, order the HBF-BC variant; for a changeable core cylinder, order HBF-CC; for S-type large format, order HBF-SLF.
A: The HBF is rated for interior use only under NEMA 1, which provides protection against dust and indirect contact but is not suitable for outdoor or wet environments.
A: The HBF is a flush-mount key switch designed to install into a standard single-gang electrical back box or J-box, with the faceplate sitting flush against the wall surface.
A: The HBF features SPDT momentary contacts with center return, providing separate OPEN and CLOSE switching positions that spring back to center when the key is released.
A: No, the HBF does not include a stop button. It is an OPEN-CLOSE two-position center-return switch only. For stop functionality, a different MMTC model would be required.