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NSI Industries 478-SLTIUS - Connector, Liquid Tight, 90 Degree, US Steel, Size 3-1/2, Insulated Throat
NSI Industries

478-SLTIUS

UPC: 781747230782


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Overview

The NSi Industries 478-SLTIUS is a 3-1/2" 90-degree liquid tight connector engineered for harsh industrial environments where moisture resistance and secure electrical/mechanical connections are critical. Constructed from durable US steel with a nylon-insulated throat, this connector meets UL 360 and CSA 22.2 #227.2/3 standards, ensuring compliance with NEMA Type 4/6 watertight requirements and hazardous location certifications (Class I Div. 2; Class II Div. 1 & 2; Class III). Its 90-degree design optimizes cable routing in tight spaces, while the integrated O-ring seal provides IP-65-rated protection against liquids, dust, and contaminants. The electro-zinc-plated steel locknut resists corrosion, and the thermoplastic body maintains performance across a -20°C to 80°C operating range. Ideal for machine tools, construction, cell towers, and utility applications, this connector supports liquidtight flexible metal conduit (LFMC) or tubing up to 3-1/2" trade size. Certified by UL (File #E-23018) and CSA (File #LR52391), it delivers reliable, long-term performance in food processing plants, marine settings, and industrial facilities exposed to detergents, cutting fluids, or UV exposure.
  • 90-degree angle for optimized cable routing in tight spaces
  • US steel construction with nylon-insulated throat for durability and safety
  • UL 360 and CSA 22.2 #227.2/3 certified; meets NEMA Type 4/6 watertight requirements
  • IP-65 rated (dust and water ingress protection) with integrated O-ring seal
  • Operating temperature: -20°C to 80°C; corrosion-resistant electro-zinc-plated locknut
  • Suitable for hazardous locations: Class I Div. 2; Class II Div. 1 & 2; Class III
  • Compatible with liquidtight flexible metal conduit (LFMC) or tubing up to 3-1/2" trade size

Specifications

Angle
90 Deg
Application
90° connector for use with metallic liquid tight conduit. Insulator rated 105 degree C.
Connector Type
LiquidTight, Insulated
Finish
Zinc Electroplated
Material
Steel
Material
US Steel
Size
3-1/2 IN
Special Features
US Made Steel
Standard
UL
Temperature Rating, Maximum
221 F
Temperature Rating, Maximum
105 °C
Temperature Rating, Minimum
221 F
Trade Size
3-1/2 in
Type
Connector
Package Dimensions (L x W x H)
16.625 IN x 12.625 IN x 5.5 IN
Package Dimensions (L x W x H)
42.2275 cm x 32.0675 cm x 13.97 cm
Package Weight (Imperial)
11.800 L
Package Weight (Metric)
5.352 kg
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Frequently Asked Questions

Is this connector suitable for liquid tight applications?

Yes, it is designed for use with metallic liquid tight conduit.

What is the maximum temperature rating?

The insulator is rated for a maximum temperature of 105 degrees Celsius.

What certifications does this product have?

The product meets Federal Specification Number A-A-50552 and NEMA Standard FB-1, and is UL listed under UL 514B.

What material is the connector made from?

The connector is made from US Steel and has a zinc electroplate finish.

What is the trade size of the connector?

The trade size of the connector is 3-1/2 inches.

Where is the product manufactured?

The connector is manufactured in the USA.

What is the standard packaging quantity?

The standard packaging quantity is 1.

Frequently Asked Questions about NSI Industries

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Tork products are typically installed by trained technicians who follow a comprehensive commissioning process. This includes verifying the work environment, conducting electrical installation checks, performing internal and external equipment inspections, powering on the system, and executing operational tests to ensure compatibility and reliability.

What environmental ratings do Tork products have?

Tork products are designed to meet various environmental ratings, including NEMA Type 4X and Type 6, which provide protection against corrosion, windblown dust, rain, and occasional temporary submersion. These ratings ensure that Tork products can withstand harsh industrial environments while maintaining operational integrity.

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Tork products support a comprehensive range of communication protocols, including PROFIBUS DP V1, PROFINET with dual port, EtherNet/IP with dual port, CANopen, and Modbus RTU integrated as standard. These protocols facilitate flexible network integration and high-performance communication across various industrial automation systems.

What are the key features of Tork products?

Tork products are designed with advanced features that enhance efficiency and reliability in industrial applications. Key features include integrated harmonics and EMC design for improved power quality, removable terminals for quick installation, and USB ports for easy troubleshooting. Additionally, Tork solutions emphasize user-friendly setup with application wizards and memory modules for convenient parameter management.

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What technical support does Tork offer?

Tork offers a comprehensive range of technical support services, including 24/7 customer support, on-site service management, and a technical hotline network. With three advanced technical support centers and over 8,000 hours of technical training conducted annually, Tork ensures certified expertise across 25+ languages to assist customers effectively. Their commitment to service is reflected in a 98% Service Level Agreement compliance rate, providing reliable support for all operational needs.

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