Page 671 - Demo

626Glossary of SOUTHCO® Standard TermsAverage Ultimate Load:The average load that causes failure or excessive deformation which renders the product inoperable.Clamping Force:The force exerted on the panels when drawn together at the nominal mounting dimensions.Detent:A pre-set, internal positioning feature that allows a fastener or hinge to rotate into fractional positions and/or to hold panel(s) or door(s) in a full/partially opened position. Also used to indicate the full-opened or closed position of some latching mechanisms. In hinges, also called Door Positioning or Hold-open feature.EMI / RFI:Electromagnetic interference or radio frequency interference is a (usually undesirable) disturbance that affects an electrical circuit due to electromagnetic radiation emitted from an external source.EMI / RFI Shielding: The capability to reduce the transmission of electromagnetic or radio energy into or out of an enclosureFerrule:The component of a Captive Fastener/Quarter-Turn Fastener that is captivated to the panel.Frame:The surface or \thickness / geometry is an important part of the latch selection process.Fully-Retractable:The ability of a Captive Fastener to be withdrawn so that no portion of the screw threads protrude beyond the inner surface of the outer panel when disengaged.Grip: Generally, the total thickness being fastened. Usually defined as the dimension from the outer surface of the door or outer panel to the inside surface of the frame or inner panel. For DZUS® Quarter Turn Fasteners, grip is denoted as \panel, frame and accessory items.Grip Range:The Minimum to Maximum allowable total material thickness for a given product that provides for proper operation. Keeper/Keeper Plate:A component used to engage with the primary latch mechanism.Key-Choice System:The SOUTHCO® Key-Choice System features a common lock core that fits a wide range of latches. This system allows for the independent selection of the latch and the lock core required to manage the security of the end product (see page 158).Machinery Directive:The EU Machinery Directive 2006/42/EC, in effect from 29 December 2009, is the regulatory basis for essential health and safety requirements for machinery at European Union level. Southco recommends a range of access hardware solutions to comply with the requirements of this law. (see page 544).Material and Finish:The base (primary) material used in the product and any supplementary coating applied to provide protection and to enhance the product appearance.Maximum Dynamic Working Load:The maximum recommended load at which the product continues to function properly throughout its intended cycle life. Maximum Static Load:The maximum recommended load after one time application and removal of which the product continues to function properly. Multi-Point System:A multi-point latching system requiring the actuator, rods and guide to be ordered from the same product family.NEMA/IP:Refers to standards for an enclosure’s resistance to dust, rain, hose-directed water, and/or ice damage. Individual components (latches, etc.) are not certified to NEMA or IP, but can help the entire enclosure achieve certification. All latches and other components should always be tested in the individual application. Over-Center/Under-Center: Two types of SOUTHCO® draw latches, described on page 324.Over-center: During actuation, the moving pin rotates above the stationary pin.Under-center: During actuation, the moving pin rotates below the stationary pin. Receptacle:The component that accepts a Quarter-turn stud or Fast-lead Thread screw and provides for positive fastening. Receptacle selection is a critical feature when designing in a Quarter-turn Fastener or Fast-lead Thread screw.Secondary Catch:An optional component of draw latches that provides added resistance to vibration, accidental opening, and shock load.Spring Loaded:A latch assembly in which the latching force is provided by an integral spring component which allows for vibration and gasket relaxation.Tightening Torque:The maximum recommended torque to be applied to the mounting hardware or to the latch itself. Tightening torque should not exceed recommended values, or latch damage/failure may occur.Type A/Type B:Generally describes right- or left-handed operation and/or installation of latches or hinges. Also described as clockwise/counterclockwise latch operation.Rod System:A multi-point accessory that can be added to a range of standard singlepoint Southco latches.Two / Three Point Latching:A latching arrangement having latching and or compression capabilities in two or three areas of a door and frame (see overview on page 206-207).