Tag Archives: Heat Shrink Terminals

***New*** Long Neck Ring Terminals from National Standard Parts Associates, Inc. (NSPA)

NSPA’s new long neck ring terminals are IDEAL when using heat shrink tubing.  The longer neck and 45° barrel design allows you to have a sealed termination without impeding the stud hole.  The design also allows you to visually inspect that your wires are properly inserted before crimping.

As you can see with the two pictures below, the longer neck design (top) allows for variation of the tubing’s position and placement while still providing sufficient room for the recovered tubing to properly sealed and not impede the stud hole.  Notice that the forty-five degree window allows you to see the stranded copper wire past the crimp area.

KS114-10 Long Ring Installed - cropped jbe

Standard terminal components were never designed to be used with heat shrink tubing and can often times block or obstruct the stud hole opening.  This is illustrated in the picture below.  The tubing is sealed but the tubing will likely impede a flush mount on a terminal block or screw.

KS114-10 Ring Installed - cropped jbe

This is a potential critical flaw when bare part terminals designed for PVC or Nylon are used with heat shrink tubing and stacking or mounting to a terminal block are required.  In the picture below you can see the excess tubing needed to seal the area where the barrel’s throat meets the ring can prevent a flush mount to a block or when stacking terminals.  This ultimately may result in less than optimal contact and potential connectivity issues.  Notice how the tubing interferes with the stacked rings.

KS - Bad Flush

In contrast, NSPA’s new, long-neck terminals stack flush and without any impedance.  Don’t risk electrical failure for your equipment and or vehicles.  Ask your NSPA sales representative for information about our NEW long neck barrel rings and spades.

KS - Good Flush

NEW… Crystal Clear Sealed Window Butt Connectors

Check out NSPA’s most recent line of Sealed Heat Shrink connectors… OptiSeal.

OptiSeal offers a unique crystal clear opportunity to visually inspect the integrity of your electrical system.

OptiSeal offers a unique crystal clear opportunity to visually inspect the integrity of your electrical system.

OptiSeal offers the following visual assurances:
• Ensures the wire is crimped to connector
• Ensures the center of crimp barrel is properly crimped
• Crystal Clear™ waterproof insulation allows for indisputable inspection of the wire’s condition

OptiSeal Components:

The Crimp Barrel:
• Window in center of connector assures that wire is seated properly and that the wire is being crimped to the connector
• Color-coded stripes identify wire gauge size to be used with connector
• Color-coded stripes also indicate/guide the installer to the proper crimp position on the
center of the barrel
• Seamless barrel butt connectors ensure superior crimp performance
• Wire-stop in butt connectors prevents over insertion of wire

The Adhesive-Lined Heat Shrink Tubing:
• Crystal Clear™ tubing provides optimal clarity for visual inspection
• Adhesive-Lined tubing ensures a waterproof seal
• Wire gauge imprint simplifies wire size identification

OptiSeal compared to a standard heat shrink terminal

Why you should ONLY use heat shrink terminals.. Part 2

In a previous blog, I touched on how big of a problem corrosion is.  The next reason why you should only use sealed, heat shrink connectors is to help protect against wire pull-out.  Wire pull-out is often found in areas of high vibration or where long periods of strain or pulling on your wires may occur.  Connectors that are exposed to weathering and UV rays can also be susceptible to wire pull-out over time.

Electrical Failure can also occur when constant strain and/or vibration causes a wire within your electrical system to come loose.

Electrical Failure can also occur when constant strain and/or vibration causes a wire within your electrical system to come loose.

By using a heat shrink connector, you add extra tensile strength to your crimp and/or solder termination that a standard, unsealed vinyl or nylon connector does not have.

Troubleshooting electrical failure is EXPENSIVE.  Help prevent costly downtime to your electrical systems by using sealed, heat shrink terminals from NSPA today.

Do it Once, Do it Right!