Cutler Hammer EHC3040 - 40A, 480VAC, 3-Pole, Circuit Breaker

The Cutler Hammer EHC3040 40A, 480VAC, 3-Pole Circuit Breaker is engineered for dependable overcurrent protection in demanding industrial environments. Built to guard three-phase distribution, this 3-pole design ensures synchronized disconnection across all phases, helping prevent equipment damage from unbalanced faults and short circuits in high-energy applications. Key specifications at a glance - Current rating: 40A - Voltage rating: up to 480VAC - Poles: 3-Pole - Type: Circuit Breaker - Ideal for panelboards, switchboards, and control panels in industrial, commercial, and OEM settings Why this breaker stands out - Three-phase reliability: The 3-pole configuration provides uniform protection for all phases, reducing the risk of phase imbalances and providing consistent motor and load protection in MCCs and panelboards. - High-voltage versatility: Designed for 480VAC systems, making it a practical choice for mid-to-large scale electrical distributions common in manufacturing floors, packaging lines, and HVAC installations. - Trusted lineage: Cutler Hammer (Eaton) has a long-standing reputation for rugged build quality and dependable performance in harsh environments, from factory floors to automated production lines. Ideal use cases - Motor control centers (MCCs) and manufacturing panels where three-phase motors and drives require coordinated protection - Large commercial distribution panels and switchboards that operate at 480VAC - OEM equipment and machinery where a reliable 3-pole breaker at 40A is needed to safeguard circuits without complicating interlocks or trip coordination How this breaker supports safer operation - Proactive protection for critical loads: By interrupting all three phases simultaneously, it minimizes the chance of latent fault conditions that could escalate into equipment damage or downtime. - Simple integration: Its 3-pole footprint aligns with standard industrial enclosures and mounting schemes, enabling straightforward replacement or upgrades in existing systems. Practical tips for deployment - Ensure the 40A rating matches the full-load current of the protected circuit, and coordinate with upstream protection to achieve proper selectivity. - Use in panels and MCCs that operate at or near 480VAC to maximize protection without overrating the system. - Keep documentation and labeling clear on the distribution panel so maintenance teams recognize the exact protection provided by this EHC3040 unit. In short, the Cutler Hammer EHC3040 is a precise, robust solution for safeguarding three-phase circuits at 40A and up to 480VAC, delivering reliable protection in panelboards, switchboards, and motor control centers where uptime and safety are non-negotiable.