Guardmaster 440F Safety Contactor

The Allen-Bradley Guardmaster 440F is a family of safety edge and safety mat sensing systems designed to detect the presence of personnel or objects at hazardous machine perimeters and access points. The 440F catalog numbers follow a structured pattern: the 440F-T prefix identifies trim and edging components, where the digits that follow encode profile geometry, length, and corner configuration — for example, 440F-T2010 designates a standard MatGuard trim profile, while 440F-T3311 specifies a 3-meter trim length with integrated channel. The 440F-A prefix covers spare parts and hardware kits, such as screw kits for standard trim (440F-A17141) and channel trim (440F-A17142) configurations. Safety mat controller modules carry the 440F-M prefix, with catalog digits encoding output configuration and connection options — the 440F-M0920DYNN is a representative mat controller variant. With 481 products spanning trim profiles, corner pieces, mounting hardware, and mat controllers, this family supports a wide range of perimeter guarding installations. Consult the Guardmaster 440F Safety Edge Technical Data for full specifications and wiring details.