Thomas & Betts 8824-TB Set Screw Conduit Coupling

Description:

The Thomas & Betts 8824-TB Set Screw Coupling is used to join 3 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 8824-TB is designed to couple 3 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 delivers long-lasting 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): 8824-TB
• Brand: Thomas & Betts (ABB) – T&B Rigid Fittings
• Product Type: Set Screw Coupling
• Trade Size: 3 in.
• Conduit Type: Rigid Metal Conduit (RMC) / Intermediate Metal Conduit (IMC)
• Installation Type: Threadless Set Screw
• Material: Malleable Iron Body with Hardened Steel Set Screws
• Finish: Zinc Electroplated Chromate Coating
• Connection Type: Coupling
• Overall Length: 4-1/4 in.
• Construction: Concrete-Tight
• Application: Couples and effectively bonds rigid metal conduit or IMC where conduit sections cannot be rotated
• Standards: UL Listed (UL File E23018), CSA Certified
• Compliance: RoHS Compliant
• UPC: 786210088242
• Features: Captive hex-head set screws, eliminates conduit threading, provides positive holding strength and ground continuity, corrosion-resistant construction, and approved for concrete-tight installations.

Common Replacements:

• Thomas & Betts 8724-TB
• Thomas & Betts 8974
• Appleton STC-300