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Strain Reliefs USR Series

For European Requirements
Designed to meet those requirements wherein the Strain Relief device must remain attached to the panel during cable removal or replacement.

US Patent No. 5052643

  • Captive screw cannot be removed from body during cable removal or replacement. (The screw forces the locking flap against the cable.)
  • Reinforcing ribs provide extra strength.
  • Nylon USR-400 series parts may help you comply with IEC Publication #335, CEE #10 and #11; VDE #0720, #0730, and others.
  • Protects your cable against forces of pull, push, twist, and FLEX; prevents use of larger-than-intended cord diameter.
  • Easy panel installation : fingertip pressure locks bushing into 7/8 (22.2 mm) holes with wall thickness up to .125" (3.2 mm).
  • No need for separate cord guard. The bushing cord exit features a bell-mouth contour, radiuses at 1 1/2 times the exit hole diameter.
  • USR-40 uses captive metal screw and USR-400/401 uses captive acetyl screw.
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