NSi Industries 249-DCSLP - 4" EMT Slip Coupling Set Screw
NSI Industries

249-DCSLP

UPC: 781747072498


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Overview

The NSI Industries 249-DCSLP is a 4-inch EMT slip coupling designed for secure conduit connections. This coupling uses a hardened steel set screw for positive holding strength and grounding, eliminating the need for conduit threading. It features an insulated nylon throat to reduce wire pulling effort. Approved for concrete-tight applications, it conforms to UL 514B and CSA C22.2 No. 18. Constructed from malleable iron with an electro zinc plated and chromate coated finish, this coupling is ideal for joining conduit in limited spaces or racked runs, saving installation time. Listed and certified by UL (File No: E-23018) and CSA (LR-2884, LR-4484).
  • 4-inch EMT slip coupling with hardened steel set screw for secure conduit connections
  • Eliminates conduit threading with positive holding strength and grounding
  • Insulated nylon throat reduces wire pulling effort by up to 50%
  • Concrete-tight design approved for harsh environments
  • UL 514B and CSA C22.2 No. 18 certified

Specifications

Application
Mighty-Align™ "Slip" Style Coupling - Used to join two ends of 4" EMT together. Backing out center screw allows 249-DCSLP to be temporarily located on one cut end while adjacent end is slid into place. -Back out center screw stop as necessary to slip coupling over conduit. -Fully install center screw stop between conduits. -Ensure that both ends of conduit are visible in sight hole. -Tighten all set screws. Patented
Connection Type
Set Screw
Length
133.3500;5.250000000000000 in;in
Length
5.25 in
Length
133.35 mm
Material
Malleable Iron with Electro Zinc Plated and Chromate Coated Finish
Material Quality
Zinc Die Cast
Outside Diameter
5.02 in
Outside Diameter
127.508 mm
Size
4" EMT
Special Features
Use in tight or limited access applications
Standard
cULus, E24001
Trade Size
4 in.
Type
Slip
Package Weight (Imperial)
1.650 L
Package Weight (Metric)
0.748 kg

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Frequently Asked Questions

What is the application of the 249-DCSLP?

The 249-DCSLP is a Mighty-Align™ 'Slip' Style Coupling used to join two ends of 4" EMT together.

What are the dimensions of the 249-DCSLP?

The dimensions are 5.25 inches for Dimension A and 5.02 inches for Dimension B.

What is the trade size of the 249-DCSLP?

The trade size of the 249-DCSLP is 4 inches.

What material is the 249-DCSLP made from?

The 249-DCSLP is made from zinc die cast.

How is the 249-DCSLP installed?

To install, back out the center screw to temporarily locate the coupling, then slide the adjacent end into place and tighten all set screws.

Where is the 249-DCSLP manufactured?

The 249-DCSLP is manufactured in the USA.

Frequently Asked Questions about NSi Industries

What technical support does NSi Industries offer?

NSi Industries offers dedicated technical support through their toll-free technical support line at 888.500.4598. They are committed to customer satisfaction and promise to make every reasonable effort to remedy any product or service issues. Additionally, customers can contact their customer service team at 800.321.5847 or email [email protected] for further technical assistance.

What are the key features of NSi Industries products?

NSi Industries products feature exceptional versatility, reliability, and safety across multiple industrial automation categories. Key features include insulation piercing connectors with no wire stripping required, watertight and corrosion-free designs, wide wire range compatibility (from #14 AWG to 750 MCM), and the ability to install on energized conductors. Their product lines like Easy-Tap™ Connectors and TORK® Digital Timers demonstrate advanced capabilities such as turbo spacers, double shear-head bolts, astronomic scheduling, and enhanced switching technologies.

What environmental ratings do NSi Industries products have?

NSi Industries enclosures feature robust environmental ratings, including IEC 60529 IP66 certification, NEMA Type 1, 2, 3, 4, 4X, 12, and 13 ratings, and UL/CSA standards. Their products are designed for both indoor and outdoor applications, with protection against dust, water, corrosion, and extreme temperatures ranging from -40°F to 266°F.

How are NSi Industries products typically installed?

NSi Industries products are typically installed using detailed mechanical and digital wiring diagrams that specify precise connection methods for various voltage configurations (120V, 208V, 240V, 277V, 480V). Installation involves carefully following product-specific wiring schematics, which include clear terminal block connections, ground wire specifications, and phase alignment requirements. Professional electricians and technicians should reference the specific product's wiring diagram to ensure correct installation and electrical compliance.

What industries and applications are NSi Industries products used for?

NSi Industries provides electrical and automation products for diverse industrial applications, including lighting control, electrical enclosures, wire management, connectors, and sensor technologies. Their product lines serve commercial, industrial, and infrastructure markets with solutions for electrical infrastructure, control systems, and safety-critical environments.

What are the main product lines offered by NSi Industries?

NSi Industries offers a comprehensive range of industrial products including TORK® Photocontrols, Polaris™ Lighting Controls, Easy-Twist™ Grounding Solutions, Miniterms, Cable Ties, Connectors, Enclosures, Occupancy Sensors, and Wire Management systems. Their product lines span electrical components, control devices, and industrial automation accessories designed for diverse applications in commercial and industrial settings.

What accessories are available for NSi Industries products?

NSi Industries offers a range of accessories for their product lines, including photocontrol accessories like replacement caps, mounting brackets, and receptacles. Specific accessories include shorting caps, open caps, 3-pin and 7-pin receptacles, and utility mounting brackets for conduit photocontrols. For specialized applications, NSi recommends contacting their customer service team to discuss custom accessory needs.