Cable Strain Relief, Flex Relief - Design, Engineering,
Manufacturing, Off the Shelf Products
Strain Relief Photo Gallery
Very Large Diversity of Strain Relief and Flex Relief Designs
We provide over 450 strain relief designs for custom cable assemblies. This includes over 80 versions for over
molds and over 20,000 grommet combinations for "discrete" end applications. All of our strain reliefs have a unique modular design for maximum versatility and utilization across a
potential wide range of over mold designs. This leads to significant cost cuts for our customers.
Grommets and strain relief's are available in four shapes; round, oval, square or rectangular. These grommets may
either be molded directly onto the cable or be discreet slip-on style boots.
Our Cable Strain Relief system utilizes a modular tooling design, thus providing maximum flexibility in
interchangeable sections, and ultimately a lower strain relief cost. Furthermore, standard cable strain relief lead times are reduced to weeks rather than months.
3D Cable Grommet Configurator
Click here for our grommet configurator This configuration manager provides for over 20,000 semi-custom grommets, which are standard,
off the shelf discrete strain relief's or ready to mold strain relief's, and are typically available for
shipment in 1-2 weeks after order. Alternatively the typical lead-time for a custom cable strain relief is 3 - 4 weeks
ARO. PVC is the standard molding material, but we can also provide Santoprene or Polyurethane
Ordering Information: ISC Engineering
provides for more than 20,000 combinations of semi-custom molded grommets, either as discrete slip on units, or molded directly onto a cable. If you do not fine what you are looking for,
please contact us for further information on custom order. PVC is the standard molding material, but we can also provide Santoprene or Polyurethane
Cable Strain Relief Basics
Do I Need a Cable Strain Relief?
A Cable Strain Relief provides extra protection to cables and wiring harnesses, at connection points on equipment.
Cable strain reliefs extend cord life and reinforce the cord connection to your equipment.
Strain Reliefs with Flex Reliefs
Depending on your application, you may wish to specify a cable strain relief with integral flex support. The flex support protects the cord from stress that is applied perpendicular to the axis of its entry into the equipment.
Pull Tests for Strain Reliefs
After installing the cable and the strain relief, the product should be able to pass a pull test. UL calls for stringent pull tests, which consists of a weight fixed to the cable for one minute. After the one-minute is over, a visual inspection is
performed to determine if the cable has slipped from the strain relief.
Dome Style Strain Reliefs
Dome style strain reliefs, named because of their domed shape, are designed to
protect the wire entering the equipment. They help to secure the wire connection to the equipment, and provide longer life to the cord by preventing it from rubbing
against a rough or sharp edge where the cord passes through the equipment panel
Flex Strain Reliefs
Flex style strain reliefs are named because they offer flexible bend protection to the cord entering the equipment. They are designed to eliminate the possibility of the
cord kinking at the point where it enters the equipment.
90° Angled Strain Reliefs
Our 90° angled strain reliefs can be used with both a flex or dome nut. They add strength and support to the cord and minimize wire strain in a bending application.
Types of strain reliefs as well as strain relief services we provide:
There is a tremendous variety of types, shapes and sizes available. We stand ready to help with any additional
information, and answer any question.
For the Best and Most Economical Strain Relief