Shielded Knock-Out Covers

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Knock-Out covers are gaskets designed to provide continuous EMI/RFI shielding integrity   preventing leakage from existing openings. Covers can be used to permit or prevent access at existing openings. Knock-Out Covers are manufactured from cad plated 1010 steel, SnCuFe seamless compressed wire mesh gasket and come with pre-installed bolt assembly. Shielded Knock-Out Covers are available in standard sizes or custom fabricated to your configuration.

Material Specifications:
• SAE 1010 Steel
• Sn/Cu/Fe per ASTM-B-520 .0045 wire diameter

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                        Shielded Knock-Out Covers 
attenuation characteristic for shielded conduit (E Field Only)       Various profiles available

 

 

Shielded Couplers

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Shielded Couplers are gaskets designed to provide continuous EMI/RFI shielding integrity of rigid metallic conduit by preventing leakage at the threaded joints, seams or where they connect with the conduit.   Couplers are fabricated from tin plated SAE 1010 steel and Sn/Cu/Fe seamless compressed wire mesh.

Shielded Couplers are supplied in standard sizes or custom configurations.

 

Material Specifications:
• SAE 1010 Steel
• Sn/Cu/Fe   per ASTM-B-520   .0045 wire diameter
• Tin Plate ASTM-B-545 Class C

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                                                  Alco-Knit Shielding Effectiveness