Overview
The NSI L50048 is a single-hole compression termination lug for 500 MCM stranded conductors. Made from high conductivity copper tubing with a 1/2″ mounting bolt, this long barrel design is engineered for reliable power distribution, grounding, and transmission applications requiring permanent, vibration-resistant connections.
Key Features
- Tin-plated copper for improved conductivity and corrosion resistance
- Legible die index and brown color-coding for easy identification
- Closed barrel design sealed against moisture and contamination
- Creates a vibration-resistant, mechanically strong connection when properly installed
- Rated for 35 kV maximum voltage when properly installed per cable manufacturer instructions
Technical Specifications
- Conductor Size: 500 kcmil
- Voltage Rating: 600 volts
- Mounting Stud: 1/2″ bolt size
- Temperature Rating: 90°C
- Overall Length: 4.13 inches; Barrel ID: 0.835 inch, OD: 1.06 inch
- Die Index: 15/20/299/87; Color: Brown
- cUL listed; UL 486 compliant
Typical Applications
- Secondary power distribution in buildings, power plants, and industrial applications
- Power distribution, grounding, and data transmission
- Single-hole lugs suitable for applications greater than 2000 volts
- Heavy-duty electrical equipment terminations requiring permanent, low-resistance connections
Compatibility & Replacements
Compatible With
- 500 MCM stranded copper conductors
- Standard power distribution systems rated 600 VAC / 35 kV maximum
- Compression termination tooling for long barrel lugs
- K, H, G, I, M, and DLO cable types
Replaces / Drop-In Replacement For
- NSI GL50048 (short barrel variant — verify length requirements before substituting)
- Previous NSI long barrel 500 MCM compression lug designs with identical dimensional specifications
- Verify compatibility with your system integrator before ordering alternative models.
Works With
- Hydraulic and manual compression tools rated for 500 MCM lugs
- UL 486 standard-compliant termination processes
- Standard electrical equipment bonding and grounding systems
