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How to Choose a Heyco® Strain Relief

and Make the Right Choice

How to Choose a Heyco® Strain Relief

Part numbers and specifications:

1. Is my wire or wire harness Round or Flat?
 
Most Heyco Strain Relief tabular charts are segregated into "For Round Cables" and "For Flat Cables."
2. What is my wire or wire harness Diameter or Dimensions?
 
Heyco Strain Relief charts are typically sequenced by Wire Size / Mounting Hole Size.
3. What is my panel Thickness?
 
A. Lockit Strain Reliefs - Multiple Locking Step “Fingers” provide a Finished Fit across a wide spectrum of Panel Thicknesses
 
B. Original Strain Reliefs - the Maximum Panel Thickness provides the best Finished Fit.
4. What Functionality and Assembly Method do I need?
 
Heyco Strain Relief tabular charts are segregated by Functionality and ease of Assembly.
 
For The Ultimate in Snap-in Strain Relief Protection:
Product
 
A. Snap-in Cordgrip Strain Reliefs – Straight-thru
   
Snap-in Cordgrip Strain Reliefs – Pigtail
 
B. Lockit™ Strain Reliefs - Snap-onto-cable "Pre-Assemble" by Hand Tool or Semi-Automatic Equipment For Faster Final Assembly - Semi-Automated Equipment Available
   
1. ST Lockit Strain Reliefs - Straight-thru for Rectangular Mounting Holes
   
2. RDD Lockit Strain Reliefs - for "Double D" Mounting Holes
     
a. 35lb. Pull Test
Straight-thru
     
b. 35lb. Pull with Maximum Flex-protection
Pigtail
     
c. 35lb. Pull with 90 degree exit from Panel
Right Angle
   
3. Specialty Strain Reliefs for Multiple Conductors, Split Panels
   
4. Universal and Romex® Strain Reliefs - widest range, snap into panel
   
5. Removable Snap-in Ratcheting Strain Reliefs - widest range, snap into panel
   
6. Mounting Hole Plugs - Standardize Panel Design!
 
C. Original Strain Reliefs - Assemble by Air Tool or Hand Pliers
   
a. 35lb. Pull Test
Straight-thru
   
b. 35lb. Pull with minimum Flex-protection
Internal Radii
   
c. 35lb. Pull with Flex-protection
Bell-Mouth
   
d. 35lb. Pull with maximum Flex-protection
Pigtail
   
e. 35lb. Pull with 90 degree exit from Panel
Right Angle
   
f. In-line Lampcord Strain Relief
Replaces "UL Knot"
   
g. European Requirements
CEE
   
h. Metal Strain Reliefs and Accessories
 
   
i. Brass Clamping Strain Reliefs
Clamping Connectors
   
j. Zinc Die-Cast Box Connectors
Box Connectors