Thomas & Betts 54878BEPH Two-Hole Long Barrel Copper Compression Lug

Description:

The Thomas & Betts 54878BEPH Two-Hole Long Barrel Copper Compression Lug is used to terminate 600 kcmil copper conductors in high-current power distribution, grounding, and control systems. Commonly installed in electrical substations, switchgear, transformers, motor control centers, utility networks, and heavy industrial electrical equipment, this long-barrel, two-hole lug features a peep hole for conductor inspection and an electro tin-plated copper body for a durable, low-resistance electrical connection. Maintenance teams and system integrators use this lug for repair, retrofit, expansion, and replacement of high-capacity copper conductor terminations.

Applications:

The Thomas & Betts 54878BEPH is designed for terminating 600 kcmil copper conductors to busbars, switchgear, transformers, panelboards, grounding systems, and other power distribution equipment using a two-hole mounting configuration. Its long-barrel design maximizes conductor contact for superior crimp performance, while the peep hole allows visual verification of proper conductor insertion. The dual-hole pad minimizes lug rotation under vibration, making it ideal for commercial, industrial, utility, and renewable energy installations. It is suitable for systems rated up to 35 kV.

Technical Specifications:

• Manufacturer Part Number (MPN): 54878BEPH
• Brand: Thomas & Betts (ABB) – Color-Keyed® / Blackburn®
• Product Type: Two-Hole Long Barrel Copper Compression Lug with Peep Hole
• Conductor Material: Copper
• Wire Size: 600 kcmil (Code), 444 kcmil Flex
• Barrel Type: Long Barrel
• Number of Mounting Holes: 2
• Stud Size: 1/2 in.
• Hole Spacing (Center-to-Center): 1-3/4 in.
• Tongue Style: Straight (180°)
• Material: High-Conductivity Wrought Copper
• Finish: Electro Tin Plated
• Die Code: 94
• Die Color Code: Green
• Inspection Hole: Yes (Peep Hole)
• Voltage Rating: Maximum 35 kV (UL Listed for 600 V applications)
• Overall Length: 5-3/4 in.
• Pad Size: 2-63/64 in. L × 1-3/4 in. W × 1/4 in. Thick
• Standards: UL Listed, CSA Certified, RoHS 3 Compliant, REACH Compliant, TSCA Section 6(h) Compliant
• Features: Color-Keyed® compression system, long-barrel design for maximum conductor contact, peep hole for conductor verification, anti-rotation two-hole pad, corrosion-resistant tin plating, high pull-out strength, low-resistance electrical connection.

Common Replacements:

• Thomas & Betts 54878BE
• Thomas & Betts 54874BE
• Thomas & Betts 54880BE