NSI Industries 251-MBI - The Mighty-Bite 251-MB is a PUSH-EMT Insulated Throat Connector.
NSI Industries

251-MBI

UPC: 781747242518


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Installation InstructionsSpecification SheetVideo ClipWarranty

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Minimum Qty: 25

Multiplier: 25

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Overview

The NSI Industries 251-MBI PUSH-EMT Insulated Throat Connector is a tool-free, push-in solution for secure MC cable installations. It features a unique saddle design that firmly secures cable in place, providing holding power in excess of listing agency requirements and assuring high-quality bonding. The removable bushing design covers a wide range of cable diameters, reducing inventory needs and simplifying logistics. The 251-MBI is compatible with cast housing knockouts and suitable for dry locations. Key features include: * Unique saddle design for secure cable installation * Removable bushing design for reduced inventory needs * Compatible with cast housing knockouts * Suitable for dry locations * U.L. Listed as a grounding means under NEC 350-5. As a PUSH-EMT Insulated Throat Connector, the 251-MBI provides a reliable connection for MC cable installations, and its tool-free design makes it easy to install, further enhancing its overall convenience and efficiency.
  • Unique saddle design for secure cable installation
  • Removable bushing design for reduced inventory needs
  • Compatible with cast housing knockouts
  • Suitable for dry locations
  • U.L. Listed as a grounding means under NEC 350-5

Specifications

Application
The 251-MBI is used to connect a properly deburred length of EMT raceway to a box device, panelboard, or similar electrical enclosure. Simply push the fitting onto raceway with a slight twist. Remove the fitting by unthreading it from conduit end. No tools are required. Concrete Tight. Patented
Connection Type
Push-EMT
Connection Type
Push-in
Connector Type
PUSH-EMT®
Finish
Ball burnish
Insulation
Insulated Throat
Material
Steel; Malleable Iron
Material
Steel/Malleable Iron
Material Quality
Zinc Alloy body and locknut with steel internal components
Series
Mighty-Bite
Size
3/4 IN
Special Features
Concrete tight
Standard
cULus
Temperature Rating, Maximum
221 F
Temperature Rating, Maximum
105 C
Temperature Rating, Minimum
221 F
Temperature Rating, Minimum
105 C
Trade Size
3/4 in.
Type
Connector
Package Weight (Imperial)
0.140 L
Package Weight (Metric)
0.064 kg
Insulated Throat, PUSH-EMT Connectors

250-MBI

Insulated Throat, PUSH-EMT Connectors
3/4" DRY PUSH-EMT® Connector

251-MB

3/4" DRY PUSH-EMT® Connector
3/4" Raintight PUSH-EMT® Coupling

261-MSRT

3/4" Raintight PUSH-EMT® Coupling
1/2" DRY PUSH-EMT® Connector

250-MB

1/2" DRY PUSH-EMT® Connector
Bridgeport Fittings Mighty-Seal 1/2 inch EMT Connectors are used to connect a 1/2 inch EMT raceway to a box, device or enclosure. The 250MSRT 1/2 inch Mighty-Seal« connector is UL listed for use in wet locations. Raintight. Patented

250-MSRT

Bridgeport Fittings Mighty-Seal 1/2 inch EMT Connectors are used to connect a 1/2 inch EMT raceway to a box, device or enclosure. The 250MSRT 1/2 inch Mighty-Seal« connector is UL listed for use in wet locations. Raintight. Patented
1-1/4" Raintight Compression Connector, Insulated

253-RTI2

1-1/4" Raintight Compression Connector, Insulated
Connector, Compression, Zinc Die Cast, 105 Degree C Insulated Throat, Size 2 1/2 Inch

256-DCI2

Connector, Compression, Zinc Die Cast, 105 Degree C Insulated Throat, Size 2 1/2 Inch
Connector, Compression, Zinc Die Cast, 105 Degree C Insulated Throat, Size 1 1/4 Inch

253-DCI2

Connector, Compression, Zinc Die Cast, 105 Degree C Insulated Throat, Size 1 1/4 Inch
Connector, Compression, Zinc Die Cast, 105 Degree C Insulated Throat, Size 3 1/2 Inch

258-DCI2

Connector, Compression, Zinc Die Cast, 105 Degree C Insulated Throat, Size 3 1/2 Inch
Connector, Set Screw, Zinc Die Cast, 105 Degree C Insulated Throat, Size 3/4 Inch

231-DCI2

Connector, Set Screw, Zinc Die Cast, 105 Degree C Insulated Throat, Size 3/4 Inch
Connector, Set Screw, Zinc Die Cast, 105 Degree C Insulated Throat, Size 1-1/4 Inch

233-DCI2

Connector, Set Screw, Zinc Die Cast, 105 Degree C Insulated Throat, Size 1-1/4 Inch
Connector, Set Screw, Zinc Die Cast, 105 Degree C Insulated Throat, Size 3 1/2 Inch

238-DCI2

Connector, Set Screw, Zinc Die Cast, 105 Degree C Insulated Throat, Size 3 1/2 Inch

Frequently Asked Questions

Is the 251-MBI connector concrete tight?

Yes, the 251-MBI connector is designed to be concrete tight.

How is the 251-MBI connector installed?

The connector is installed by pushing it onto the raceway with a slight twist; no tools are required.

What is the purpose of the 251-MBI connector?

The 251-MBI is used to connect a properly deburred length of EMT raceway to a box device, panelboard, or similar electrical enclosure.

What is the trade size of the 251-MBI connector?

The trade size of the 251-MBI connector is 3/4 inch.

How do you remove the 251-MBI connector?

To remove the connector, simply unthread it from the conduit end.

What materials are used in the 251-MBI connector?

The connector features a zinc alloy body and locknut with steel internal components.

What certifications does the 251-MBI connector have?

The connector is certified under CSA, UL, and meets NEMA standards.

Where is the 251-MBI connector manufactured?

The 251-MBI connector is manufactured in the USA.

What is the finish of the 251-MBI connector?

The connector has a mirror finish with a ball burnish.

What is the standard packaging quantity for the 251-MBI?

The standard packaging quantity for the 251-MBI is 250 units.

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