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Heyco Strain Reliefs Knock-Out Adapters
Knock-Out Adapter

Material: Zinc Plated Steel

  • Converts trade size knock-out holes to diameters suitable for strain relief bushings.
  • Allows for standardization of panel design since various strain relief bushing sizes can be adapted to one hole size.
  • Allows for the mounting of strain relief bushings into unusually thick panels.
  • Adapters mount into 1/2" knock-outs (.875" or 22,2 mm nominal diameter) [or a 3/4" knock-out (1.109" or 28,2 mm) as noted for Part Number 7572]
  • A-10 Adapter Pliers (Part #0024) for quick and easy locking of adapters.
 
Heyco® Knock-Out Adapters for Strain Relief Bushings
Will Adapt These Strain Reliefs to Fit a
.875" (22,2 mm.) Diameter Hole.		 Part
Number		 Description Lug Length
in. mm.
3L-1, 3P-4, 3P-5, 3W-1, 13-1 7561 A-21F .500 12,7
4K-1, 4K-4, 4K-6, 4L-1, 4L-4,
5L-1, 5P3-4, 5P-4, 5P-7, 5S-1,
6W-1, 14-1, 15-1, 5M-3		 7562 A-22F .500 12,7
Same as A-22F above except...
.515" (13,1 mm) Mounting Hole Diameter		 7563 A-23F .500 12,7
6K-5, 6L-1, 6P2-5, 6P3-4,
6P3-5, 6P3-7, 6P-4, 6P-5,
6P-7, 10-2, 11-2, 11K-2		 7567 A-25F .500 12,7
2P-4, 2P-5, 5K-4, 5W-1,
16-1, 2L-1, 2M-4		 7570 A-28F .500 12,7
300-1 7571 A-40 .375 9,5
20-1, 20L-1, 30-1 7572 A-41 .500 12,7
7P-2, 7P-7, 17-2 7573 A-42F .375 9,5
302-1 7577 A-43 .375 9,5
23-1, 33-1 7578 A-44 .376 9,6
4K-1, 4K-4, 4K-6, 4L-1, 4L-4,
5L-1, 5P3-4, 5P-4, 5P-7, 5S-1,
6W-1, 14-1, 15-1, 5M-3		 7580 A-12 .250 6,4
Will Adapt These Strain Reliefs to Fit a
1.109" (28,2 mm.) Diameter Hole.		 Part
Number		 Description Lug Length
in. mm.
7K-2, 7W-2, 8L-1, 8P-2,
24-1, 31-2, 34-2		 7579 A-60F .500 12,7
 
 

A-10 Adapter Pliers (Part No. 0024) for quick and easy locking of strain relief Knock-Out adapters.

A-10 Adapter PliersA-10 Adapter Pliers