NSI Industries 688-DC2 - Connector, Strap, Two Screw, Zinc Die Cast, Size K.O. 3 Inch
NSI Industries

688-DC2

UPC: 781747156884


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Overview

The NSi Industries 688-DC2 is a zinc die-cast connector engineered for secure, long-lasting connections in industrial electrical systems. Designed for a 3-inch knock-out (K.O.) size, this two-screw connector delivers reliable performance in demanding environments where vibration resistance and corrosion protection are critical. Constructed from durable zinc die-cast material, it offers superior mechanical strength and excellent resistance to environmental factors, ensuring extended service life in both indoor and outdoor applications. Ideal for mounting electrical components in enclosures, control panels, and machinery, the 688-DC2 provides a stable connection point for wiring and conduit systems. Its precision-engineered design ensures compatibility with standard 3-inch K.O. openings, while the two-screw clamping mechanism guarantees a tight, secure fit that resists loosening over time. This connector is a trusted choice for electricians, contractors, and maintenance professionals who require a dependable solution for critical electrical installations. Compatible with a wide range of industrial applications, the 688-DC2 meets rigorous industry standards for safety and reliability. Whether used in commercial buildings, manufacturing facilities, or utility installations, this connector delivers the durability and performance needed for professional-grade electrical systems.
  • Material: Zinc die-cast for superior corrosion resistance and durability
  • Size: 3-inch knock-out (K.O.) for standard industrial applications
  • Connection Type: Two-screw clamping for secure, vibration-resistant fit
  • Applications: Electrical enclosures, control panels, and industrial machinery
  • Compatibility: Designed for seamless integration with standard 3" K.O. openings

Specifications

Angle
180 Deg
Application
Recommended cable types for use with steel or aluminum interlocked Metal Clad cable. 4-500 MCM to 4-750 MCM, diameter 2.375 - 3
Conductor Range
4-500 MCM to 4-750 MCM
Connector Type
Two Screw, Strap Type
Finish
Ball burnish
Material
Zinc Die Cast
Number Of Conductors
1 Cable
Size
3 IN
Standard
UL
Trade Size
3 in
Type
Connector
Package Dimensions (L x W x H)
5.25 IN x 4.75 IN x 3.5 IN
Package Dimensions (L x W x H)
13.335 cm x 12.065 cm x 8.89 cm
Package Weight (Imperial)
1.300 L
Package Weight (Metric)
0.590 kg
3" Two Screw MC Insulated Connector

688-DCI2

3" Two Screw MC Insulated Connector
Connector, Screw-In, Size 3/8 Inch, Length 1.31 Inch, Width 0.92 Inch, Die Cast Zinc, Bag of 5

XC240-5

Connector, Screw-In, Size 3/8 Inch, Length 1.31 Inch, Width 0.92 Inch, Die Cast Zinc, Bag of 5

Frequently Asked Questions

How many units are in a standard package of 688-DC2?

The standard package quantity for the 688-DC2 connector is 5 units.

Where is the 688-DC2 connector manufactured?

The 688-DC2 connector is manufactured in the USA.

What is the trade size of the 688-DC2 connector?

The trade size for the 688-DC2 connector is 3 inches.

What certifications does the 688-DC2 connector have?

The 688-DC2 connector is certified under Federal Specification Number A-A-50552 and UL Standard UL514B, with UL File Number E191676.

What are the key dimensions of the 688-DC2 connector?

Key dimensions include A: 4-1/4 in, B: 3-3/4 in, C: 1-1/4 in, D: 1-1/8 in, and E: 2-3/8 in.

What is the diameter range for compatible cables?

The 688-DC2 connector is compatible with cables having a diameter between 2.375 inches and 3 inches.

What cable types are compatible with the 688-DC2?

It is recommended for use with steel or aluminum interlocked Metal Clad cable. Compatible cable sizes range from 4-500 MCM to 4-750 MCM.

What material is the 688-DC2 connector made from?

The 688-DC2 connector is made from zinc die cast. It has a ball burnished, mirror smooth finish.

What is the product type of 688-DC2?

The 688-DC2 is a two-screw, round opening, zinc die cast connector, also described as a strap connector. Its knockout size is 3 inches.

What is the product type of 688-DC2?

The 688-DC2 is a two-screw, round opening, zinc die cast connector, also described as a strap connector. Its knockout size is 3 inches.

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