Thomas & Betts 8724-TB Set Screw Coupling For Rigid Metal Conduit

Description:

The Thomas & Betts 8724-TB Set Screw Coupling NSB is used to join 2-1/2 inch rigid metal conduit (RMC) or intermediate metal conduit (IMC) without requiring conduit threading. Commonly installed in industrial facilities, manufacturing plants, commercial buildings, utility systems, and electrical distribution installations, this threadless coupling provides a secure mechanical connection and dependable grounding continuity. Maintenance teams and electrical contractors use this fitting for repair, retrofit, expansion, and replacement of rigid conduit systems. 

Applications:

The Thomas & Betts 8724-TB is designed to couple 2-1/2 inch rigid metal conduit and IMC where conduit sections cannot be rotated during installation. Its captive hex-head set screws provide positive holding strength and electrical ground continuity, while the malleable iron body offers long-term durability in demanding industrial and commercial environments. The coupling is approved for concrete-tight installations and is commonly used in switchgear, motor control centers, process plants, electrical distribution systems, and heavy-duty conduit raceways. 

Technical Specifications:

• Manufacturer Part Number (MPN): 8724-TB
• Brand: Thomas & Betts (ABB) – T&B Rigid Fittings
• Product Type: Set Screw Coupling
• Trade Size: 2-1/2 in.
• Conduit Type: Rigid Metal Conduit (RMC) / Intermediate Metal Conduit (IMC)
• Installation Type: Threadless Set Screw
• Material: Malleable Iron
• Insulation: Non-Insulated
• Overall Length: 3-7/8 in.
• Connection Type: Coupling
• Construction: Concrete-Tight
• Application: Couples and effectively bonds rigid metal conduit or IMC where conduit sections cannot be rotated
• Standards: UL 514B (UL File E23018), CSA Certified
• Compliance: RoHS Compliant, REACH Compliant, TSCA Section 6(h) Compliant
• UPC: 786210087245
• Features: Captive hex-head screws, eliminates conduit threading, positive mechanical holding strength, reliable ground continuity, corrosion-resistant malleable iron construction, and approved for concrete-tight installations.

Common Replacements:

• Thomas & Betts 8624
• Thomas & Betts 8824-TB
• Appleton STC-250