4-20

1-800-526-4182 • 732-286-1800 (NJ) • FAX: 732-244-8843 • www.heyco.com

“Stay Connected” with

Strain Relief Bushings

®

• Protects the lifeline of your electric/

electronic products by absorbing the

forces of pull, push, and twist that may

be exerted on the flexible power cord.

• Securely anchors, insulates, and

protects cables at panel entry points.

• Sizes SR 6-Series to SR 7-Series for

mounting hole diameters from .625˝

(15,9 mm) to .781˝ (19,8 mm).

• Sizes for thin .062˝ (1,6 mm)

panel available: SR 7N-2

See chart for details.

• See page 4-38 for corresponding

Mounting Hole Plugs which can be

used to fill blank/unused Mounting

Holes and thus allow for a single panel

design for multiple applications.

• Consult Heyco for other wire types

and sizes.

• See pages 4-27 & 4-28 for SR

assembly tools.

• See page 4-19 for Quick Specs.

• For Double D Mounting Hole Punches,

see page 4-30.

Heyco® Original Strain Relief Bushings

Straight-Thru for Round Cables

.625˝ (15,9 mm) to .750˝ (19,0 mm) Mounting Holes

WILL FIT THESE CABLES

PANEL DIMENSIONS

PART NO. DESCRIPTION PART DIM. Mounting

UL Type

AWG/

Approximate

A

B

Finished

C

Hole Plug

Conductors

Size

Mounting

To Prevent

Fit Panel

Black

BODY

Hole Dia.

Rotation

Thickness*

LENGTH

in.

mm.

in.

mm.

in.

mm.

in.

mm.

in.

mm. PART NO.

SJ, SJT

18/2

.300

7,6

.625

15,9

.550

14,0

.062

1,6

1217

SR 6N-4

.578

14,7

& SJO

Same as SR 6N-4 above except

.125

3,2

1210

SR 6P-4

.578

14,7

SJT

18/3

.300-

7,6-

.625

15,9

.550

14,0

.062

1,6

1197

SR 6N2-4

.578

14,7

.330

8,4

16/2

.325

8,3

18/3

.330

8,4

SJ, SJT

14/2

.350

8,9

.625

15,9

.550

14,0

.062

1,6

1200

SR 6N3-4

.578

14,7

2497

& SJO

16/3

.355

9,0

18/4

.360

9,1

Same as SR 6N3-4 above except

.125

3,2

1207

SR 6P3-4

.578

14,7

18/2

.380

9,7

S & ST

18/3

.405

10,3

.625

15,9

.550

14,0

.062

1,6

1202

SR 6N5-4

.578

14,7

16/2

Same as SR 6N5-4 above except

.125

3,2

1204

SR 6P5-4

.578

14,7

18/2

.300

7,6

.625

15,9

SJ, SJT

16/2

.325

8,3

.656

16,7

& SJO

18/3

.330

8,4

.656

16,7

.550

14,0

.156

4,0

1214

SR 6L-1

.678

17,2

consult Heyco

16/3

.355

9,0

.687

17,4

HPD

16/3

.355

9,0

.687

17,4

SJT

18/4

.360

9,1

14/3

.370

9,4

18/2

.390

9,9

.750

19,0

18/3

.405

10,3

.660

16,8

.062

1,6

1244

SR 7N-2

.750

19,1

2503

S & ST

16/2

.405

10,3

16/3

.430

10,9

.750-

19,0-

.781

19,8

Same as SR 7N-2 above except

.125

3,2

1237

SR 7P-2

.750 19,1

Standard color black. Consult Heyco for white and other colors.

*Maximum Panel Thickness. Part has additional clearance. Consult Heyco for your Custom Finished Fit Panel Thickness.

STANDARD MOUNTING HOLES

.956

.255

FOR SR-7KR-2 ONLY

C

B

A

B

A

ELONGATED MOUNTING HOLE

A

B