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Manufacturers : Cables and connectors : Connector caps plugs and covers
Electrical connections are often located in areas where contamination by foreign matter such as dirt or moisture can cause failure. In order to protect electrical connectors to which the mating connector or plug has not been coupled, against environmental factors, and EMI, RFI and EMP, it has been proposed heretofore to provide protective covers to be secured to the unmated connector. Covers are used to protect the wire bundles to a wire harness from edges and burrs in the vehicle and from damage during such operations as tightening bolts. Connector cap is used to seal the connector against EMI, RFI and EMP,  against moisture or other environmental factors, against normal shock and vibration, and is always ready for application, when in the unmated configuration. Telecommunication equipment has benefited from the design of electrical plugs and jacks that provide easy connect/disconnect capability between electrical circuits within the telecommunications equipment and for local network wiring. Modular plugs provide a convenient means for connecting and disconnecting telephone equipment, telecommunications equipment, and computer-related equipment. Two conductor coaxial cable with so called 1/4" phone plugs is commonly used to interconnect audio equipment such as amplifiers, microphones, and electrified instruments such as guitars and keyboards. Generally, such plugs have a cylindrical body that inserts in a mating jack of the audio equipment, and the cylindrical body surrounds a tip rod that projects beyond the body. Audio connector plugs have also been attached to coaxial cable using solderless connections.

Listings on Cables and connectors : Connector caps plugs and covers

  • Caplugs
    Manufactures premium protection products including caps, plugs, tubing, edge liners, fasteners, grips, flange covers, hanger caps, netting, polyester masking tape, silicone rubber tape, and high-temperature masking discs. USA.
    http://www.caplugs.com
  • ARI International Corporation
    Manufacturer of precision rubber and plastic parts such as LED white caps, silicone rubber color caps, heat-dissipating silicone gel, and self-lubricated o-rings for computers and microelectronic systems, automation equipment, medical and consumer products. USA.
    http://www.ari-corp.com
  • Ell-Tron Manufacturing
    Manufactures caps, plugs, grips, stud/lug terminal, side post, straight clamp terminal, marine terminal, right/left elbows, solenoid/starter motor and alternator cap, and other custom injection molding products. USA.
    http://www.elltron.com
  • Harman Corporation
    Produces plastic caps, plastic plugs, end caps, anti-roll caps, end plugs, hanger caps, pull caps, plastic grips, foam grips, plastic hanger grips, double dip grips, silicone caps, high temp paint masks, high gloss finish, round pull tabs, pull plugs, and tubing plugs. USA.
    http://www.harmancorp.com
  • Heat Exchanger Products Corp.
    Manufactures silicone tube plugs on the market today for several industries, including; electrical generating plants both nuclear and fossil, pulp and paper and petro-chemical. USA.
    http://www.hepcoplugs.com
  • Hirel Connectors, Inc.
    Manufactures self-locking plugs, hermetically sealed connectors, filter connectors, surge suppression connectors, umbilical connectors, hermetic initiators, headers, terminals, housings with sealed-in contacts, aluminum hermetics, high temperature ceramic hermetics, thermocouple connectors, and thermocouple contacts. USA.
    http://www.hirelco.com
  • Niagara Caps & Plugs
    Manufacturer of tapered caps and plugs, core plugs, esd caps and plugs, furniture glides, electrical connector caps and plugs, protective netting, non-threaded caps, flange protectors, pipe caps, vinyl grips, threaded caps, nylon fasteners, non-threaded plugs, threaded plugs, snap-in plugs, and bushings. USA.
    http://www.niagaraplastics.com
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