NSi Industries 291-CDC - Compression Transition Coupling, Rigid/IMC to EMT, Zinc Die Cast 3/4 Inch
NSI Industries

291-CDC

UPC: 781747942913


Documents & Media
Specification SheetVideo ClipWarranty

Contact for Pricing

Minimum Qty: 15

Multiplier: 15

*Contact for lower quantities*

Overview

The NSi Industries 291-CDC Compression Transition Coupling is a zinc die-cast connector designed to join Rigid/IMC conduit to EMT conduit in 3/4-inch sizes. This coupling provides a rigid, vibration-resistant transition between conduit types, ensuring continuous electrical and mechanical integrity in industrial and commercial installations. Its zinc die-cast construction delivers superior corrosion resistance and durability, making it suitable for harsh environments where exposure to moisture, chemicals, or physical stress is common. The compression design eliminates threading requirements, simplifying installation and reducing labor time while maintaining a concrete-tight seal. Compatible with standard 3/4-inch conduit systems, the 291-CDC accommodates both Rigid Metal Conduit (RMC) and Intermediate Metal Conduit (IMC) on one end, transitioning to Electrical Metallic Tubing (EMT) on the other. This versatility supports mixed-conduit applications in power distribution, control systems, and machinery wiring. NSi Industries, a trusted manufacturer of electrical fittings, ensures this coupling meets industry standards for performance and safety. Ideal for retrofits, new construction, and maintenance projects where conduit type transitions are necessary.
  • Zinc die-cast construction for corrosion resistance and durability
  • Connects Rigid/IMC conduit to EMT conduit in 3/4" size
  • Compression design eliminates threading for faster installation
  • Concrete-tight seal maintains system integrity in harsh environments
  • Compatible with standard 3/4" conduit systems for mixed applications

Specifications

Application
When exiting concrete slab or foundation, or transitioning overhead from Rigid to EMT, the CDC fittings provide a convienient, labor-saving, low profile and listed solution.
Color
Silver
Length
2.000000000000000;50.8000 in;in
Length
2 in
Length
50.8 mm
Material Quality
Zinc Die Cast
Outside Diameter
1.45 in
Outside Diameter
36.83 mm
Special Features
Concrete-Tight. Dry Locations Only
Standard
UL-514B
Trade Size
0.75 in
Type
Compression Transition
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 kg

Similar Products

292-CDC


Outside Diameter: 1.725 in

Trade Size: 1 in.

Length: 2.125000000000000;53.9750 in;in

295-CDC


Outside Diameter: 2.8 in

Trade Size: 2 in.

Length: 2.700000000000000;68.5800 in;in

291-DC


Special Features: Furnished with 2-way Phillips/Slotted Head Screw

Type: Coupling

Connector Type: Combination

291-MS


Material Quality: Steel

Special Features: Concrete-tight

Type: Coupling

291-RT


Special Features: Raintight /Wet Location Seal

Standard: cETLus

Type: Coupling

291-RTNPT


Color: Gray

Standard: cETLus

Type: Raintight

You May Also Be Interested In

Frequently Asked Questions

What is the trade size of the 291-CDC?

The trade size of the 291-CDC is 3/4 inch.

What certifications does the 291-CDC fitting have?

The 291-CDC fitting is certified under CSA 22.2 and UL-514B standards.

Is the 291-CDC fitting concrete-tight?

Yes, the 291-CDC fitting is listed as concrete-tight.

What materials are used in the 291-CDC fitting?

The 291-CDC fitting is made from zinc die cast.

How many units are in a standard package?

A standard package contains 150 units of the 291-CDC fitting.

What is the finish of the 291-CDC fitting?

The finish of the 291-CDC fitting is ball burnished.

What is the purpose of the 291-CDC fitting?

The 291-CDC fitting provides a convenient transition from rigid to EMT conduit.

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.