Ideal Industries Underground Wire Connector Model 66 Silicone Sealed Twist-On Gray Dark Blue 50 Pack

Ideal Industries Underground Wire Connector Model 66 Silicone Sealed

Professional-Grade Underground Wire Connection System

The Ideal Industries Underground Wire Connector Model 66 delivers professional-grade wire connection performance for underground and wet location applications. This silicone-sealed twist-on connector features 100% silicone-based sealant and deep skirt moisture protection designed for electricians, utility professionals, and electrical contractors, providing the reliable performance and industry-leading quality that electrical professionals demand for direct burial and wet location installations.

Professional Features & Benefits

Superior Moisture Protection

• Deep Skirt Design - Provides superior moisture resistance to protect underground connections from water infiltration and corrosion
• 100% Silicone-Based Sealant - Pre-filled protection against moisture and corrosion for long-lasting underground performance
• Expanding Live-Action Spring - Square-wire spring mechanism ensures fast, secure and long-lasting electrical connections
• Flame-Retardant Shell - Tough UL 94V-2 rated thermoplastic shell withstands 105°C (221°F) operating temperatures

Safety & Code Compliance

• UL Listed 486G Certification - Sealed twist-on wire connector approved for damp/wet locations and above-grade applications
• Direct Burial Rated - Certified for below-grade underground installations and direct burial applications
• Wet Location Approved - Safe for use in damp and wet electrical environments with superior moisture sealing

Technical Specifications

Model 66 underground wire connector with gray and dark blue color coding for easy identification. Operating temperature rating up to 105°C (221°F) with UL 94V-2 flame-retardant shell construction. Features expanding square-wire spring mechanism with 100% silicone sealant protection. UL Listed to 486G standards for sealed twist-on wire connectors. Supplied in convenient 50-piece box quantity for professional installations.

Installation & Setup

1. Strip wire insulation to proper length ensuring clean copper conductor exposure for optimal connection
2. Insert stripped wires into connector ensuring all conductors are fully seated within the spring mechanism
3. Twist connector clockwise until tight, ensuring proper engagement of the expanding square-wire spring
4. Verify secure connection by gently tugging on wires to confirm mechanical and electrical integrity
5. Install in underground application ensuring proper burial depth and moisture protection compliance
6. Follow NEC guidelines for underground wiring installations and wet location requirements

Professional Applications

Ideal for:

• Underground Electrical Systems - Direct burial applications for residential and commercial underground wiring installations
• Wet Location Connections - Outdoor electrical connections exposed to moisture, rain, and harsh environmental conditions
• Utility Infrastructure - Power distribution systems requiring moisture-sealed wire connections for reliable service
• Landscape Lighting - Low voltage and line voltage outdoor lighting systems with underground wire runs
• Pool and Spa Electrical - Wet location electrical connections for swimming pool and spa equipment installations
• Irrigation Systems - Electrical connections for automated sprinkler and irrigation control systems
• Outdoor Equipment - HVAC units, pumps, and outdoor electrical equipment requiring moisture protection
• Marine Applications - Dock and marina electrical systems exposed to moisture and corrosive environments

Silicone Sealing Technology Advantage

Ideal Industries Model 66 connectors feature advanced silicone sealing technology that provides superior moisture protection compared to standard wire nuts. The pre-filled 100% silicone sealant creates a waterproof barrier while the deep skirt design prevents water infiltration. The expanding square-wire spring mechanism ensures reliable electrical contact while maintaining the integrity of the moisture seal for long-term underground performance.

Why Choose Ideal Industries Quality?

Ideal Industries demonstrates unwavering commitment to UL 486G listing and safety certifications, ensuring reliable performance and code compliance for electrical professionals. These underground wire connectors meet stringent moisture resistance standards and provide the durability and safety features required for direct burial and wet location applications, backed by decades of electrical industry expertise and innovation.