Thomas & Betts 321-TB 90 Degree Flex Connector

Description:

The Thomas & Betts 321-TB Tite-Bite Flex Connector 90Deg is used to securely terminate 3/8-inch flexible metal conduit (FMC), armored cable (AC), and metal-clad (MC) cable to electrical boxes and enclosures. Commonly installed in commercial buildings, industrial control panels, HVAC systems, and electrical distribution equipment, this steel connector features a 90-degree saddle-style design that provides a secure mechanical grip while allowing conduit runs to change direction in tight spaces. Maintenance teams and system integrators use this connector for repair, retrofit, expansion, and replacement of conduit termination fittings. 

Applications:

The Thomas & Betts 321-TB is designed for connecting 3/8-inch AC, MC, and flexible metal conduit to 1/2-inch knockout electrical boxes, cabinets, and enclosures. Its right-angle configuration makes it ideal for installations with limited clearance while maintaining a reliable mechanical bond and electrical continuity in commercial, industrial, OEM, and utility electrical systems.

Technical Specifications:

• Manufacturer Part Number (MPN): 321-TB
• Brand: Thomas & Betts (ABB) – Tite-Bite®
• Product Type: 90° Flex Connector / Armored Cable Connector
• Trade Size: 3/8 in.
• Knockout Size: 1/2 in.
• Connection Orientation: 90°
• Connector Style: Saddle-Type
• Connection Type: Threaded
• Cable Range: 0.470–0.660 in. OD
• Compatible Cable Types: Flexible Metal Conduit (FMC), Armored Cable (AC), Metal-Clad (MC) Cable
• Material: Steel
• Finish: Electro-Zinc Plated / Zinc Finish
• Insulation: Non-Insulated
• Box Connection: 1/2 in. MNPT / NPS Thread
• Cable Clamp: Single-Screw Saddle Clamp
• Overall Length: 1-1/2 in.
• Overall Height: 1-11/32 in.
• Features: Right-angle design for tight spaces, secure saddle clamp, vibration-resistant grip, corrosion-resistant zinc finish
• Standards: UL Listed (File E23018), CSA Certified (File 2884), RoHS Compliant
• Typical Applications: Commercial Buildings, Industrial Facilities, Electrical Panels, HVAC Equipment, Motor Control Centers, OEM Machinery, Power Distribution Systems

Common Replacements:

• Thomas & Betts 320-TB
• Thomas & Betts 322-TB
• Thomas & Betts 330-TB