Thomas & Betts XJG64-TB Expansion Coupling NSB

Description:

The Thomas & Betts XJG64-TB Expansion Coupling NSB is used to accommodate thermal expansion and contraction in 2-inch rigid metal conduit (RMC) and intermediate metal conduit (IMC) systems while maintaining continuous electrical bonding. Commonly installed in commercial buildings, industrial facilities, manufacturing plants, bridges, and outdoor electrical distribution systems where long conduit runs are subject to temperature-related movement. Maintenance electricians, contractors, and system integrators use this expansion coupling for new installations, system upgrades, retrofits, and replacement of existing conduit expansion fittings. 

Applications:

The Thomas & Betts XJG64-TB is an XJG Series threaded expansion coupling manufactured from zinc-plated malleable iron with an internal tinned copper bonding jumper. Its design allows up to 4 inches of conduit movement without reducing the mechanical strength or electrical bonding integrity of the raceway. The tamper-proof internal bonding jumper eliminates the need for an external grounding strap, while the PTFE/synthetic fiber packing provides smooth movement and environmental protection. The coupling is ideal for bridges, outdoor conduit systems, industrial facilities, utility installations, and structures exposed to significant temperature fluctuations.

Technical Specifications:

• Brand: Thomas & Betts (ABB) – T&B Rigid Fittings
• Part Number: NSB XJG64-TB (XJG64-TB)
• Product Type: Expansion Coupling
• Series: XJG Expansion Couplings
• Trade Size: 2 in.
• Compatible Conduit: Rigid Metal Conduit (RMC) and Intermediate Metal Conduit (IMC)
• Connection Type: Threaded
• Maximum Movement: 4 in. (102 mm)
• Material: Malleable Iron
• Finish: Zinc Plated
• Internal Bonding Jumper: Tinned Copper Braid
• Packing Material: PTFE / Synthetic Fiber
• Outside Diameter: 3.86 in.
• Length: 11.25 in.
• Application: Compensates for conduit expansion and contraction while maintaining electrical continuity
• Special Features: Internal tamper-proof bonding jumper, no external grounding strap required, no disassembly required for installation
• Standards: UL Listed (File E23018), CSA Certified, RoHS 3 Compliant, REACH Compliant, TSCA Section 6(h) Compliant.

Common Replacements:

• Appleton XJ200-4
• OZ-Gedney AX-200
• OZ-Gedney AXB200