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Heyco® RDD Lockit™ Strain Relief Bushings - Straight-Thru

Snap onto Round Cables for Faster Assembly into Double D Mounting Holes - Semi-Automatic Equipment Available

Fit 1/2" Electrical Knock-out Hole

  • Part Numbers and Specifications
  • Features
WILL FIT THESE CABLES PANEL DIMENSIONS RDD LOCKIT STRAIN RELIEF
for Faster Assembly
Corresponding
Mounting Hole Plug
CAD
UL
Type
AWG/
Conductors
Approximate
Size
Mounting Hole
Size
Thickness
PART NO. DESC. PART
NO.
DESC.
in. mm. in. mm. in. mm. Black White
See UL Recognized
Wire Type Table
various .290 - .385 7,4 - 9,8 .875 w/
.770 flats
22,2 w/
19,6 flats
.032 0,8 1857 1858 RDD 201 2509 DD 875-770 CAD
.063 1,6
.099 2,5
.126 3,2
.157 4,0
Same as RDD 201 above except –––––––––––––––––––––––––––––> .078 2,0 1855 1856 RDD 201-2* 2509 DD 875-770 CAD
.140 3,4
See UL Recognized
Wire Type Table
various .340-.430 8,6-10,9 .875 w/
.770 flats
22,2 w/
19,6 flats
.032 0,8 1861 1862 RDD 301 2509 DD 875-770 CAD
.063 1,6
.099 2,5
.126 3,2
.157 4,0
Same as RDD 301 above except –––––––––––––––––––––––––––––> .078 2,0 1859 1860 RDD 301-2* 2509 DD 875-770 CAD
.140 3,4
See UL Recognized
Wire Type Table
various .420-.450 10,7-11,4 .875 w/
.770 flats
22,2 w/
19,6 flats
.032 0,8 1865 1866 RDD 401 2509 DD 875-770 CAD
.063 1,6
.099 2,5
.126 3,2
.157 4,0
Same as RDD 401 above except –––––––––––––––––––––––––––––> .078 2,0 1882 1883 RDD 401-2* 2509 DD 875-770
.140 3,4

Standard color black. Consult Heyco for white and other colors.
*Designed for cast or other mounting holes with rounded edges.

  • Assembly friendly! Independent of insertion into the panel, RDD Lockit™ Strain Reliefs self-lock onto the cable. Preassemble RDD Lockits off line for final assembly at a later time or remote location, for lower installed cost!
  • Install easily with fingertip pressure into a standard round or Double D hole. No tools required, even for hand assembly.
  • Protect the lifeline of your electric/electronic products by absorbing the forces of push and pull that may be exerted on the flexible power cord. Double D design eliminates the possibility of part rotation under forces of twist.
  • Multiple panel locking steps secure Lockit Strain Reliefs into a wide range of panel thicknesses for a flush, finished fit.
  • Heyco's automated Pre-Assembly Equipment speeds assembly of the RDD onto the cable and thus lowers costs while greatly reducing risk of carpal tunnel syndrome.
  • Consult Heyco for other wire types and sizes.
  • Corresponding Mounting Hole Plugs can be used to fill blank/unused Mounting Holes and thus allow for a single panel design for multiple applications.
  • For Double D Mounting Hole Punches, click here.

QuickSpecs

Material   Nylon 6/6
Certifications ru Recognized under Underwriters' Laboratories File E15331
csa Certified by Canadian Standards Association File 8919
Flammability Rating   94V-2
Temperature Range   -.04°F (-18°C) to 221°F (105°C)
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