The Pre-insulated Sleeve MJPB is a specialized compression connector engineered for the junction of Aerial Bundled Conductors (ABC) in low-voltage distribution networks. Unlike standard connectors, the MJPB series is designed to maintain the mechanical and electrical integrity of the line while ensuring the system remains fully insulated and watertight.
Engineering & Material Composition
The core of the sleeve is manufactured from high-purity Aluminum (Al-99.5%), which provides an optimal balance between mechanical strength and electrical conductivity. This ensures minimal voltage drops across the connection point.
To protect the connection from the elements, the aluminum core is encased in a robust insulation sheath. This sheath is formulated from a high-density polymer that is specifically stabilized against Ultra-Violet (UV) radiation and extreme thermal fluctuations, preventing cracking or degradation over decades of service.
Premium Material (Al-99.5%): Manufactured from 99.5% pure aluminum to ensure maximum electrical conductivity and long-term performance.
Weather & UV Resistance: The insulation sheath is crafted from high-grade materials specifically designed to withstand prolonged exposure to sunlight and harsh environmental conditions.
Advanced Waterproofing: Equipped with elastomeric caps and pre-filled silicone grease, providing a superior moisture seal that prevents corrosion and oxidation.
User-Centric Design: * Color-Coded Caps: Identify the correct conductor cross-section instantly via the cap color.
Clear Installation Markings: The sheath features permanent markings for stripping length, crimping die size, crimping sequence, and frequency.
Rigorous Safety Testing: Every sleeve is tested for dielectric integrity at 6kV for 1 minute under water, ensuring safety in the most demanding conditions.












