NSI Industries RF21NR-BK - Dome Cap Spiral-Flex Cable Gland, black, Polyamide, 3/4" NPT, cable range .35 - .63
NSI Industries

RF21NR-BK

UPC: 785411508979

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Overview

The NSI Industries RF21NR-BK is a black, polyamide dome cap spiral-flex cable gland designed for secure cable entry and strain relief. Featuring a 3/4" NPT thread, this gland accommodates a cable diameter range of 0.35 to 0.63 inches (8.89 to 16.00 mm). The body and compression nut are constructed from durable polyamide, ensuring resistance to impact and corrosion. The rubber grommet provides a liquid-tight seal, rated to NEMA 6P when used with an O-ring and locknut, and Type 3R without. This ensures protection against dust and water ingress, making it suitable for various industrial applications. The spiral-flex design offers enhanced flexibility and protection for the cable. UL File No. E76954 and CSA File No. LR32159 provide recognized safety and compliance. This cable gland is an essential component for maintaining enclosure integrity and ensuring reliable cable connections in demanding environments. Its robust construction and sealing capabilities make it a dependable choice for electrical installations requiring secure and protected cable penetrations.
  • Black Polyamide construction for durability and corrosion resistance
  • 3/4" NPT thread size for standard conduit connections
  • Accommodates cable diameters from 0.35" to 0.63" (8.89mm to 16.00mm)
  • Provides a liquid-tight seal with a rubber grommet
  • Rated NEMA 6P with O-ring/locknut, Type 3R without

Specifications

Color
Black
Material Quality
Polyamide
Operating Temperature, Maximum
176 F
Operating Temperature, Maximum
80.0000 °C
Operating Temperature, Minimum
-4 F
Operating Temperature, Minimum
-20.0000 °C
Temperature Rating
-20 to 80 Deg C C
Package Dimensions (L x W x H)
1.3 IN x 1.09 IN x 1.09 IN
Package Dimensions (L x W x H)
3.302 cm x 2.7686 cm x 2.7686 cm
Package Weight (Imperial)
0.879 L
Package Weight (Metric)
0.399 kg

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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.