NSi Industries 581-DC - EMT/FMC Coupling, Combination, Zinc Die Cast, Size 1/2 Inch
NSI Industries

581-DC

UPC: 781747095817


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Multiplier: 50

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Overview

The NSI Industries 581-DC EMT/FMC Combination Coupling is a zinc die-cast transition fitting designed for secure, code-compliant connections between Electrical Metallic Tubing (EMT) and Flexible Metal Conduit (FMC). This 1/2-inch coupling ensures a reliable, leak-proof joint in industrial and commercial conduit systems, meeting NEC and UL standards for electrical installations. Its durable zinc die-cast construction resists corrosion and wear, extending service life in demanding environments such as manufacturing plants, commercial buildings, and utility facilities. The combination design eliminates the need for separate fittings, reducing installation time and labor costs while maintaining compliance with electrical codes. Ideal for electricians and contractors, this coupling simplifies transitions between rigid and flexible conduit types without compromising system integrity. Compatible with standard 1/2-inch EMT and FMC, it provides a seamless, vibration-resistant connection for electrical wiring protection.
  • Zinc die-cast construction for corrosion resistance and durability
  • 1/2-inch size compatible with standard EMT and FMC
  • Code-compliant transition fitting for NEC and UL listed installations
  • Eliminates need for separate fittings, reducing installation time
  • Secure, leak-proof connection for electrical conduit systems

Specifications

Application
Used to join EMT to flexible metal conduit. Screw-in type for flex. Compression type for EMT.
Connector Type
Combination
Material Quality
Zinc Die Cast
Special Features
581-DC UL also listed for use with XRWFMC
Standard
UL
Trade Size
0.5 in
Type
Coupling
Package Weight (Imperial)
0.077 L
Package Weight (Metric)
0.035 kg

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Frequently Asked Questions

What is the trade size of the 581-DC?

The trade size of the 581-DC is 1/2 inch.

Where is the 581-DC manufactured?

The 581-DC is manufactured in the USA.

What is the trade size of the 581-DC?

The trade size of the 581-DC is 1/2 inch.

Where is the 581-DC manufactured?

The 581-DC is manufactured in the USA.

What materials is the 581-DC made from?

The 581-DC is made from zinc die cast material.

What is the purpose of the 581-DC coupling?

The 581-DC is used to join EMT to flexible metal conduit.

What certifications does the 581-DC have?

The 581-DC meets Federal Specification A-A-50552, NEMA Standard FB-1, and UL Standard UL-514B.

What materials is the 581-DC made from?

The 581-DC is made from zinc die cast material.

What is the purpose of the 581-DC coupling?

The 581-DC is used to join EMT to flexible metal conduit.

What certifications does the 581-DC have?

The 581-DC meets Federal Specification A-A-50552, NEMA Standard FB-1, and UL Standard UL-514B.

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.