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Heyco® Euro Strain Relief Bushings USR Series–US Patent No. 5,052,643 Foreign Patents

Heyco® Euro Strain Relief Bushings USR Series–US Patent No. 5,052,643 Foreign Patents

Product catalog summary

Overview: Heyco Products, Inc. offers the USR Series Euro Strain Relief Bushings, designed to meet European requirements for strain relief devices that must remain attached to the panel during cable removal or replacement. These bushings are patented in the US and have foreign patents.

Specifications:

The bushings feature a captive screw that cannot be removed from the body during cable removal or replacement, ensuring the locking flap is forced against the cable.
Reinforcing ribs provide additional strength.
Made from Nylon USR-400 series, they may comply with IEC Publication #335, CEE #10 and #11, VDE #0720, #0730, and others.
They protect cables against pull, push, twist, and flex forces and prevent the use of larger-than-intended cord diameters.
Easy installation with fingertip pressure locking the bushing into .875˝ (22.2 mm) holes with panel thickness up to .125˝ (3.2 mm).
No separate cord guard is needed due to the bell-mouth contour of the bushing cord exit.
Available with captive metal or acetyl screws depending on the model.

Compatibility:

Fits cables with cross-section sizes up to .400 inches (10.2 mm) for round or flat cables.
Panel dimensions include a mounting hole diameter of .875 inches (22.2 mm) and a maximum panel thickness of .125 inches (3.2 mm).

Part Numbers and Descriptions:

1724 USR-400 for round or flat cables up to .400 inches.
1726 USR-401 for flat cables up to .250 x .400 inches.
*1730 USR-40 for round or flat cables (SPT Type).

Material and Certifications:

Made from 6/6 Nylon.
Recognized under File E15331 for round and flat (SPT Type) cables.
Listed under Underwriters’ Laboratories File E103540.
Certified by the Canadian Standards Association File LR81067.
Flammability Rating of 94V-2.
Material Temperature Index of 257°F (125°C), with a maximum part temperature not to exceed 221°F (105°C).

Color Options: Standard color is black, with options for white and other colors available upon consultation with Heyco.

Catalog excerpts

Heyco® Euro Strain Relief Bushings USR Series–US Patent No. 5,052,643 Foreign Patents-1

Heyco Products, Inc. “ T h e F i r s t N a m e i n W i r e P r o t e c t i o n ” 3-19 1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • Web site: www.heyco.com Quick Specs Heyco® Euro Strain Relief Bushings USR Series–US Patent No. 5,052,643 Foreign Patents For European Requirements Designed to meet those requirements wherein the Strain Relief device must remain attached to the panel during cable removal or replacement. • 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 .875½ (22,2 mm) holes with panel thickness up to .125½ (3,2 mm). • No need for separate cord guard. The bushing cord exit features a bell-mouth contour, with radius 1-1/2 times the exit hole diameter. • USR-40 uses captive metal screw and USR-400/401 uses captive acetyl screw. WILL FIT THESE CABLES PANEL DIMENSIONS PART NO. DESCRIPTION Cross Approximate A B Maximum Section Size Mounting To Prevent Panel Black Hole Dia. Rotation Thickness in. mm. in. mm. in. mm. in. mm. Round or Flat up to .400 up to 10,2 .875 22,2 .770 19,6 .125 3,2 1724 USR-400 Flat up to .250 x .400 6,4 x 10,2 .875 22,2 .770 19,6 .125 3,2 1726 USR-401 Round or Flat up to .400 up to 10,2 .875 22,2 .770 19,6 .125 3,2 *1730 USR-40 (SPT Type) Standard color black. Consult Heyco for white and other colors. Material 6/6 Nylon Certifications Recognized File E15331 for round, flat (SPT Type Cables) Listed under Underwriters’ Laboratories File E103540 Certified by the Canadian Standards association File LR81067 Flammability Rating 94V-2 Material Temperature Index 257°F (125°C)–Maximum temperature on part not to exceed 221°F (105°C) .63 (16,0mm) 1.00 (25,4mm) Ø.75 (19,1mm) Ø.75 (19,1mm) 1.15 (29,2mm) 1.15 (29,2mm) Ø.41 (10,4mm) .26 (6,6mm) .49 (12,4mm) Ø.97 (24,6mm) Ø.97 (24,6mm) A 2 r= MOUNTING HOLE B A 1726 1724

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