Allen-Bradley 140M-H8P-D10-PD 100A 3-Pole 600 V Circuit Breaker

Meet the Allen-Bradley 140M-H8P-D10-PD—a rugged molded-case circuit breaker designed to protect three‑phase power systems with precision. With a 100 A current rating and a 600 V maximum working voltage, this 3‑pole device is built to safeguard industrial panels, motor feeders, and distribution circuits in demanding environments.

Key specifications at a glance

• Current rating: 100 A
• Poles: 3 (three‑pole design)
• Voltage rating: 600 V
• Part number: 140M-H8P-D10-PD
• Category: Molded-case circuit breaker (MCCB)

Why this model stands out

Designed for integration within Allen-Bradley control ecosystems, the 140M-H8P-D10-PD delivers reliable, predictable trip behavior essential for protecting delicate equipment and maintaining production continuity. The three‑pole construction ensures balanced protection across all phases, reducing the risk of phase imbalance and collateral damage during fault conditions. Its rugged molded-case construction is engineered to endure the bumps and heat of industrial environments, while the compact footprint makes it a practical drop-in for standard panel interfaces.

Ideal applications

• Three‑phase motor feeders in manufacturing lines
• Power distribution and protection within industrial control panels
• Panel modernization or replacement in facilities standardized on Allen-Bradley components
• Critical loads requiring coordinated overcurrent protection in commercial/industrial settings

Practical guidance for use

Choose the 140M-H8P-D10-PD when you need dependable overload and short‑circuit protection for up to 600 V systems with a clean, predictable disconnect. Its 100 A rating makes it suitable for mid‑sized feeders and motor circuits typical in workshops, assembly lines, and data centers with industrial power demands. For best results, pair this breaker with compatible 140M-series devices to maintain consistent trip characteristics and streamlined field service.

Installation and maintenance notes

Install in accordance with standard electrical codes and manufacturer guidelines. Ensure proper enclosure rating, secure mounting, and correct wiring gauge for 100 A protection. Schedule routine inspection of connections and test the trip function periodically to confirm reliable operation within your panel lineup.