Zipper-Mesh (VNH) Cable Bundling with EMI Shielding

SHX-4 EMI Shield, VNH-23 Jacket, Zipper Closure

Drawing Number: ZT02-07-024

Zipper-Mesh (VNH) Cable Bundling with EMI Shielding
RoHS Military Grade

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Selected Part Number:ZT02-07-024-0.5-B
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Zipper-Mesh (VNH) Infographic
  • Flame Retardant, Mil-Spec Jacket
  • Easy to install Zipper Closure
  • Excellent Low Frequency EMI Shielding (500 KHz to 1 GHz)
  • High Performance High Flexibility applications
  • Extremely Rugged VNH-23 Jacket

Zipper-Mesh™ (VNH) cable shielding is a convenient and efficient method of providing EMI/EMP protection to harnesses and wire bundles. It is a highly-flexible shield constructed of 4-ply knitted wire mesh utilizing an internal shield overlap, an integral grounding strap, and a heavy duty zipper closure. The zipper closure mechanism allows installation to be "tool-free", and re-entry to be very simple for cable repair or modification. The Mesh jacket is protected by a rugged, Mil-Spec, PVC jacket of flame retardant VNH-23.

Q:  What lengths of Zipper-Mesh are available?

A:  Our zipper closed sleeves can be ordered in lengths as short as a few inches to lengths of 100 feet or more.  When quoting or ordering, make sure to clearly state the length of each sleeve in inches, which is typically referenced at the end of the part number (-X120.0 for example).

Q:  How does the knitted wire mesh compare to metal braided sleeving?

A:  Both are excellent shielding options utilizing conductive metal wires.  However, the knitted wire mesh can be formed into large and custom sizes & shapes that are not possible with standard metal braid.  Additionally, the physical structure of the mesh tends to keep its orientation better under flexing conditions where a braid may open up around bends.  Read our comparison article for more: Mesh vs. Braid

Q:  Can I solder to the mesh to add a ground or attachment point?

A:  Yes.  There are several ways to attach grounding leads, including soldering.  Other good options for grounding include crimping or requesting pre-installed ground extensions.  Reference our Shielding Termination Guide or contact a design engineer for more information.

Q:  What diameter of jacketing do I need?  Is it recommended to oversize?

A:  We will often suggest oversizing the sleeve diameter by 1/8” to allow for ease of installation.  If the application requires significant bending or flexing we will suggest even more extra room.  For assistance with sizing you can also contact one of our design engineers.

Q:  Can I cut the Jacketing?

A:  Yes*.  *Although you can cut the jacketing, we recommend ordering zipper-closed jackets to the exact length required.  If you need to trim down your jacketing, make sure you do it from the end opposite the zipper pin/box end and reinstall top zipper stops at the point where you trimmed the jacketing.  For more details
on cutting or size recommendations please contact one of our design engineers.  

Q:  Will the zipper keep out water and is it water-tight?

A:  No.  Our standard zippers do a great job at keeping big debris and dirt out of the jacketing but are not water tight.  Our molded tooth zippers are rated at IP4X, which means they will keep out most dirt and dust but water splashing can enter the jacket.  If you need more protection, you may consider a track closure or adhesive closure option. 

 

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Overall Performance

  • Diameter: 0.5" (1/2)
  • Closure: Zipper (Nylon)
  • Material: VNH-23
  • Maximum Operating Temperature: 167°F
  • Minimum Operating Temperature: -67°F
  • RoHS: RoHS-6
  • Shelf-Life: 36 Months
  • Shielding: SHX-4 (SnCuFe)
  • Shielding Material: Tin-Plated Copper

VNH-23

  • Mil-Spec: Mil-C-20696 / Mil-PRF-20696, Type II, Class 2
  • Durability: Better
  • REACH: Compliant
  • Flame Retardant: FED-STD-191 Method 5903
  • Thickness: 0.023"
  • Maximum Operating Temperature: 171°F
  • Minimum Operating Temperature: -65°F
  • RoHS: RoHS-10
  • Shelf Life: 36 Months
  • Tensile Strength: 225 Warp; 225 Fill

Zipper (Nylon)

    SHX-4 (SnCuFe)

      Nylon Thread

        15 AWG Braided Ground Straps

          Specifications subject to change without notice. All statements and technical information contained herein are based on tests we believe to be reliable, but the accuracy or completeness is not guaranteed under all circumstances. Before using Zippertubing® products, the user shall determine suitability for the intended use, and user assumes all responsibility for improper selection. Published attenuation values of Zippertubing® shielding have been verified by laboratory testing of the respective shielding materials. Actual installed attenuation values may differ due to installation techniques and final assembly operation parameters which are beyond the control of Zippertubing®. Actual attenuation values can only be determined by the end user testing the completed assembly. U.S. and International Patents and patents pending. © The Zippertubing® Company, Chandler, Arizona.
          Shrink-N-Shield® (2:1) EMI Shielded Heat Shrink Tubing  Flex-Shield (HP) Braided EMI Shielding Sleeve  
          NAME SHRINK-N-SHIELD® (2:1) EMI SHIELDED HEAT SHRINK TUBING  FLEX-SHIELD (HP) BRAIDED EMI SHIELDING SLEEVE  
          DESCRIPTION Shrink-N-Shield® (2:1) is a MIL-SPEC, heat-shrink tubing with a 2:1 shrink ratio that provides exceptional shielding from EMI, RFI and EMF.  A braided, expandable EMI, RFI and EMF shielding sleeve that is lightweight and flexible—an ideal solution for the aerospace industry.  
          Closure    
          RoHS RoHS-10  RoHS-10  
          Abrasion Resistance Best    
          Installation Type Pull-Through  Pull-Through  
          Purpose EMI Shielding  Sleeve  
          Min Temperature Extreme  Moderate  
          Minimum Operating Temperature -67°F  -40°F  
          Max Temperature Moderate  Moderate  
          Maximum Operating Temperature 275°F  302°F  
          Flexibility    
          View  View  
          Zippertubing
          Zipper-Mesh (VNH) Infographic

          Zipper-Mesh (VNH) Cable Bundling with EMI Shielding

          SHX-4 EMI Shield, VNH-23 Jacket, Zipper Closure

          Drawing Number(s): ZT02-07-024

          Selected Part Number: ZT02-07-024-0.5-B

        • Flame Retardant, Mil-Spec Jacket
        • Easy to install Zipper Closure
        • Excellent Low Frequency EMI Shielding (500 KHz to 1 GHz)
        • Military
          Zipper-Mesh (VNH)
          Zipper-Mesh (VNH) Electromagnetic Interference Shielding
          Zipper-Mesh™ (VNH) Shielding Options
          Zipper-Mesh (VNH) Wire and Cable Protection

          Zipper-Mesh (VNH) Cable Bundling with EMI Shielding

          Specifications subject to change without notice. All statements and technical information contained herein are based on tests we believe to be reliable, but the accuracy or completeness is not guaranteed under all circumstances. Before using Zippertubing® products, the user shall determine suitability for the intended use, and user assumes all responsibility for improper selection. Published attenuation values of Zippertubing® shielding have been verified by laboratory testing of the respective shielding materials. Actual installed attenuation values may differ due to installation techniques and final assembly operation parameters which are beyond the control of Zippertubing®. Actual attenuation values can only be determined by the end user testing the completed assembly. U.S. and International Patents and patents pending. © The Zippertubing® Company, Chandler, Arizona.

          SHIELDING EFFECTIVENESS - SHX-4 (SnCuFe)

          ATTENUATION DATA WAS OBTAINED USING MIL-DTL-83528H (MODIFIED). TESTING WAS PERFORMED BY ACCREDITED, THIRD-PARTY EMI LABORATORIES.

          Zipper-Mesh (VNH) Cable Bundling with EMI Shielding

          MATERIAL SPECIFICATIONS

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