Product Description
Amtec 7303-003 SR Series Non-Insulated Strain Relief Grip is a robust, single-piece solution designed to provide wide-range strain relief using galvanized steel mesh. With a 1/2-inch NPT thread and support for 0.43 to 0.54-inch cable diameters, this grip prevents cable pullout and ensures reliable connections in electrical enclosures. Built by Amtec Corporation, this model is ideal for dry indoor installations and applications demanding durable, non-insulated strain relief.
Model: 7303-003
Brand: Amtec
Series: SR Series
Grip Type: Non-Insulated Strain Relief
Cable Range: 0.43 - 0.54 in (Dia. Range)
Thread Size: 1/2 in NPT
Material: Galvanized Steel Mesh
Length @ NOM Dia: 3 3/4 in
UL Listed: Yes (4D55)
Free shipping on orders over $250
Product Benefits
- Prevents cable pullout and strain damage in electrical enclosures
- Quick and simple installation with one-piece construction
- Durable galvanized steel mesh for long-term performance
- Ideal for industrial and commercial dry-location applications
Key Features
- Thread Size: 1/2-inch NPT
- Cable Diameter Range: 0.43 – 0.54 inches
- Mesh Construction: Single weave, galvanized steel
- Design: Non-insulated, wide range strain relief
- UL Certification: Listed under UL 4D55
Specifications
Technical Specs
| Attribute | Value |
|---|---|
| Part Number | 7303-003 |
| Series | SR |
| Description | SR-040 |
| Thread Type | NPT |
| Thread Size | 1/2 in |
Physical Specs
| Attribute | Value |
|---|---|
| Material | Galvanized Steel Mesh |
| Construction | One-piece, non-insulated |
| Mesh Style | Single Weave |
Performance Specs
| Attribute | Value |
|---|---|
| Cable Diameter Range | 0.43 – 0.54 in |
| Grip Length @ NOM Dia | 3 3/4 in |
| UL Listed | Yes (4D55) |
Application Examples
- Control panels and switchgear housings
- Motor and generator cable management
- Flexible conduit terminations in industrial environments
- Dry indoor installations requiring pullout protection
Installation Tips
- Ensure cable diameter matches specified range (0.43 – 0.54 in)
- Thread the fitting securely into 1/2-inch NPT knockout
- Optional locknut and PVC gasket can be added for dust sealing
- Only use in dry indoor locations per UL listing
Frequently Asked Questions
What cable sizes are compatible with the Amtec 7303-003?
It supports cable diameters between 0.43 and 0.54 inches.
Is this strain relief grip UL listed?
Yes, it is UL listed under UL 4D55 for use in electrical enclosures.
Can this grip be used outdoors?
No, it is intended for dry indoor locations only.
Is the grip insulated?
No, this is a non-insulated model. For insulation, consider Amtec’s SRP Series.
What is the thread size of the fitting?
This model features a 1/2-inch NPT thread.
How is the grip installed?
Simply insert the cable and thread the fitting into a 1/2-inch knockout; no disassembly required.
Does it include a sealing gasket?
The standard version does not; however, a locknut and PVC gasket are available as accessories.
Is this grip reusable?
It is designed for single-use installations to ensure optimal strain relief and safety.
