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Thomas & Betts 3/4 Inch NPT Straight Cord Connector with Superior Strain Relief
Professional Cable Entry Solution with Extended Range Performance
The Thomas & Betts 3/4 inch NPT straight cord connector delivers reliable cable entry performance for electrical enclosures with superior strain relief design. Constructed from durable Polyamide/Nylon 6.6 material with IP65 protection rating, this connector accommodates conductor ranges from 0.310 to 0.560 inches (7.9-14.2mm) while operating reliably in temperatures from -34�C to +105�C. The gland nut design restricts cable bending to protect cable integrity in demanding applications.
Professional Features & Benefits
- 3/4 Inch NPT Threading: Standard pipe thread connection ensures secure mounting and compatibility with common electrical enclosures and junction boxes.
- Superior Strain Relief Design: Extended range strain relief with specialized gland nut prevents cable damage and maintains connection integrity under mechanical stress.
- IP65 Protection Rating: Sealed construction provides dust-tight and water-resistant performance for reliable operation in wet, dry, or ordinary locations.
- Wide Conductor Range: Accommodates cables from 0.310 to 0.560 inches (7.9-14.2mm) diameter, offering versatility for various cable sizes and applications.
- Polyamide/Nylon 6.6 Construction: High-strength thermoplastic material provides excellent chemical resistance, durability, and long-term performance.
- Extended Temperature Range: Operates reliably from -34�C to +105�C, suitable for both indoor and outdoor installations in varying climatic conditions.
- UL and CSA Listed: UL E13938 and CSA 52391 certifications ensure compliance with North American electrical safety standards.
Technical Specifications
- Color: Black
- Colour: Black
- Conductor Range: 0.310 Inch/7.9mm to 0.560 Inch/14.2mm
- Degree Of Protection Ip: IP65
- Department: Electrical
- Environmental Conditions: Ordinary, Wet, or Dry Locations
- Etim: EC000441 Cable screw gland
- Inner Dimensions Inches: 5x4.5x3
- Inner Quantity: 10
- Material: Polyamide/Nylon 6.6
- Material Quality: Polyamide (PA)
- Nominal Thread Size Inch Gas Pipe Thread: 3/4 inch
- Operating Temperature: -34-+105�C
- Outer Dimensions Inches: 24x11x4.1
- Outer Quantity: 100
- Product Details: Cord Connectors-Straight
- Product Group: Connectors
- Product Model: Straight
- Product Subgroup: Electrical Connectors
- Product Type: Cord Connectors-Straight
- Standard: UL E13938, CSA 52391
- Strain Relief: Y
- Suitable For Cable Diameter: 7.9-14.2mm
- Temperature Rating: -34 to +105 Degrees C
- Thread Length: 15.875mm
- Thread Type: NPT
- Unspsc: 39121431 Cable gland connector
- Weight Uom: 6.5 lbs. per 100
Professional Applications
- Industrial Control Panels and Electrical Enclosures
- Commercial Building Electrical Systems
- Outdoor Electrical Equipment Installations
- Manufacturing Facility Power Distribution
- Process Control and Automation Systems
- Marine and Harsh Environment Applications
- Telecommunications Equipment Housings
Why Choose Thomas & Betts Quality?
Thomas & Betts cord connectors deliver proven reliability with UL E13938 and CSA 52391 certifications, ensuring compliance with rigorous North American safety standards. The IP65-rated construction and extended temperature range from -34�C to +105�C provide dependable performance in demanding environmental conditions, while the superior strain relief design protects cable integrity for long-term operational reliability.
Manufacturer Resources
2921NM Spec Sheet
Product Specs
- Product Group:
- Wiring Devices
- Department:
- Electrical
- Etim:
- EC000441 Cable screw gland
- Unspsc:
- 39121431 Cable gland connector
- Wire Size:
- 0.310 Inch/7.9mm to 0.560 Inch/14.2mm
- Product Color:
- Black
- Thread Length:
- 15.875mm
- Operating Temperature:
- -34-+105°C
- Colour:
- Black
- Strain Relief:
- Y
- Suitable For Cable Diameter:
- 7.9-14.2mm
- Standards:
- UL E13938, CSA 52391
- Material Quality:
- Polyamide (PA)
- Product Type:
- Straight Cord Connector
- Environmental Conditions:
- Ordinary, Wet, or Dry Locations
- Product Details:
- Cord Connectors-Straight
- Product Model:
- Straight
- Degree Of Protection Ip:
- IP65
- Thread Type:
- NPT
- Outer Quantity:
- 100
- Product Subgroup:
- Cord Grips
- Product Material:
- Polyamide/Nylon 6.6
- Temperature Rating:
- -34 to +105 Degrees C
Thomas & Betts 2921NM – Frequently Asked Questions
1) What cable diameter range does the Thomas & Betts 2921NM straight cord connector accept?
The gland takes cable from 0.310 to 0.560 inches outside diameter (7.9 to 14.2 mm). Measure the jacket OD, not the conductor gauge. Anything thinner than 0.310 inches won't get a proper seal or grip from the gland nut, and anything over 0.560 won't pull through, so on SO/SJO cord jobs check the jacket OD first.
2) Do I get a 1/2 inch or 3/4 inch NPT hub on this Thomas & Betts cord connector?
Both. The connector is ordered by NPT thread size: 2921NM is the 1/2 inch and 2931NM is the 3/4 inch. Pick the one matching the hub or knockout you are landing in, since the thread is NPT (tapered pipe thread), not straight metric.
3) Can this nylon cord connector be used outdoors or in a washdown area?
Yes. It is rated IP65 (dust tight, protected against water jets) and listed for ordinary, wet, or dry locations, so outdoor enclosures and washdown panels are within its scope. It is not rated for submersion.
4) What temperature range can a polyamide cord connector handle in an unheated building or hot panel?
Rated -34 to +105 degrees C. That covers unheated warehouse and exterior winter service at the low end and hot control panel interiors at the high end. The body is Polyamide/Nylon 6.6, which also holds up to chemical exposure better than a bare metal gland in plating or process areas.
5) Does this connector actually provide strain relief, or just seal the hole?
It does both. The gland nut clamps the cable jacket and restricts bending where the cord leaves the enclosure, so pull on the cord is taken by the fitting instead of the terminations inside. That is the difference between this and a plain sealing bushing, and it is what most panel specs mean by a strain relief connector.
6) How many cord connectors come in a case for a panel shop stocking order?
Standard case quantity is 100 pieces. Useful if you are standardizing a panel build or MRO crib on one gland size rather than buying onesies.
How fast can I get the Thomas & Betts 2921NM delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Thomas & Betts 2921NM come with a warranty?
Absolutely. The Thomas & Betts 2921NM is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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