Terasaki AME8B 642A 460VAC Air Circuit Breaker For Industrial Power Distribution

The Terasaki AME8B 642A 460VAC Air Circuit Breaker is a heavy‑duty solution engineered to safeguard low‑voltage power distribution in demanding industrial and commercial environments. With a robust build and precise protection, this unit is built to reliably protect essential feeders and switchboards while delivering clean, controlled switching for critical power systems.

Key specifications and capabilities

• Model / Part Number: AME8B
• Current Rating: 642A
• Voltage Rating: 460VAC
• Breaker Type: Air Circuit Breaker
• Protection Features: Adjustable trip settings paired with high interruption capacity for dependable fault current clearance

Why this Terasaki ACB stands out

Designed for main incoming feeders, switchboards, and critical power distribution, the AME8B delivers tailored protection that can be coordinated with downstream devices. The adjustable trip settings make it possible to align protection curves with your specific system impedance and fault history, helping minimize nuisance trips while maintaining rapid response to true faults. The high interruption capacity ensures reliable interruption of fault currents, reducing the risk of equipment damage and downtime in high-demand installations.

Ideal applications and use cases

• Protecting the primary feeder in industrial facilities where large motor starting surges and fault currents are common
• Serving as a main or sectional breaker within switchboards for commercial buildings with heavy electrical loads
• Providing configurable protection for critical power distribution paths where precise coordination is essential

What outcomes you can expect

With the Terasaki AME8B, facilities gain dependable overcurrent protection that aligns with their unique power profiles. Expect improved system reliability, clearer fault isolation, and a streamlined protection strategy for low‑voltage distribution networks operating at 460VAC.