Nelco WN-4 Wire Nuts – PK100 Yellow Medium Connectors (18–12 AWG)

The Nelco WN-4 Wire Connector is a medium-size twist-on connector engineered for professional electrical installations requiring secure, high-temperature-rated terminations. Designed for #18 through #12 AWG copper conductors, it provides consistent torque, reliable conductivity, and compliance with UL and CSA standards. The connector’s construction ensures long-term performance in commercial, industrial, and field wiring applications operating under elevated temperature and voltage conditions.

Details

• Manufacturer: Nelco Products
• Model Number: WN-4 NELCP
• Package Quantity: 100 (PK100)
• Type: Wire Connector / Twist-On Wire Nut
• Color: Yellow
• Wire Range: #18 through #12 AWG copper conductors
• Voltage Rating: 600 V maximum
• Temperature Rating: 900°F (482°C) continuous operation
• Material Composition: Flame-retardant, high-dielectric thermoplastic shell
• Configuration: Medium-size connector for general electrical and control wiring
• Dielectric Strength: Conforms to UL and CSA performance requirements
• Standards Compliance: UL Listed, CSA Certified

Technical Application

The WN-4 yellow wire nut is intended for mechanical and electrical splicing of copper conductors within its rated parameters. It is designed for use in junction boxes, conduit systems, fixtures, control panels, and general wiring assemblies. The high-temperature and voltage rating make it suitable for use in environments exposed to sustained heat, including industrial equipment, lighting systems, and motor connections. The connector’s thermoplastic shell provides thermal resistance and mechanical integrity during torque application and extended service cycles.

Specifications

• Wire Capacity: #18–#12 AWG solid or stranded copper conductors
• Voltage: 600 V maximum
• Temperature: 900°F (482°C) continuous rating
• Connection Type: Twist-on mechanical splice
• Shell Material: Flame-retardant thermoplastic
• Color Code: Yellow (medium size)
• Dielectric Strength: Meets UL and CSA electrical insulation standards
• Packaging: Box of 100 units
• Certifications: UL Listed, CSA Certified

Summary

The Nelco WN-4 Yellow Wire Connector (PK100) delivers consistent electrical performance and torque retention for #18–#12 AWG copper wiring. Rated for 600 V and 900°F continuous service, it is suited for professional-grade electrical terminations across commercial, industrial, and service applications where durability and compliance are required.