Product Description
The CMC AB-506 is a heavy-duty mechanical terminal lug engineered for high-capacity electrical terminations in industrial and commercial power systems. Constructed from high-strength aluminum alloy and finished with electro-tin plating, this lug provides a low-resistance connection while preventing oxidation.
With its CU9AL certification, the AB-506 is dual-rated for use with both copper and aluminum conductors, offering maximum versatility for service entrances, panelboards, and switchgear applications.
? Technical Specifications
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Manufacturer: CMC (Connector Manufacturing Company)
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Part Number: AB-506
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Conductor Range: 500 kcmil (MCM) down to 250 MCM
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Secondary Capacity: Supports (2) 250 MCM to 3/0 AWG conductors
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Material: High-strength tin-plated aluminum alloy
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Rating: CU9AL (Dual-rated for Copper and Aluminum)
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Temperature Rating: 90°C (194°F)
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Mounting Hole: 1-Hole for 3/8-inch bolt
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Installation Torque: 550 in-lbs
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Design: Single barrel, mechanical screw-pressure connection
⭐ Key Features & Benefits
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Dual-Rated Versatility: CU9AL rating ensures safe and reliable performance with either copper or aluminum wiring, eliminating the need for multiple lug types.
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Corrosion Resistance: The electro-tin plating provides a durable barrier against atmospheric corrosion and ensures a long service life in industrial environments.
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High Torque Capacity: Designed to handle up to 550 in-lbs of torque, providing a secure mechanical grip that prevents loose connections and hot spots.
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Compact Single-Barrel Design: Ideal for space-constrained installations in motor control centers and electrical cabinets.
⚙️ Applications
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Industrial Switchgear: Main and branch circuit terminations for heavy machinery.
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Commercial Panelboards: Reliable service entrance connections for power distribution.
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Transformer Terminals: Used for securing large-gauge cables to transformer bushings.
