Eaton HND312T106W 1200A 600V 3-Pole Circuit Breaker

Introducing the Eaton HND312T106W—a high-capacity, bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a 1200A rating and 600V maximum, this three-pole device is built to handle demanding commercial and light industrial environments while staying reliable over the long term.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection that stays tight through equipment start-ups and busy duty cycles, reducing contact wear and maintenance needs.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection with a two-stage response—thermal sensing for sustained overloads and magnetic trip for high-energy short-circuit faults—helping prevent nuisance trips and safeguarding connected equipment.
• OEM-compatible design: Specifically engineered to integrate with matching Eaton OEM load centers and panelboards, ensuring straightforward replacement, consistent protection coordination, and simplified serviceability.
• High-current, three-pole protection: 1200A rating supports large feeders and three-phase circuits, making it suitable for commercial distribution panels, industrial subsystems, and motor-driven loads in light industrial settings.
• Three-phase reliability: The 3-pole configuration provides balanced protection for three-phase systems, essential for motors, compressors, and other equipment that rely on coordinated phase protection.
• Versatile applications: Ideal for service panels, warehouse distribution, manufacturing equipment rooms, and retrofit projects where robust, high-current protection is required.

The Eaton HND312T106W is purpose-built for scenarios where uptime matters and protection must endure. It’s not just a breaker—it’s a strategic component that helps you prevent outages, minimize equipment damage, and simplify maintenance in panelboards and load centers that demand consistent, high-capacity performance.

Key specifications at a glance

• Manufacturer: Eaton
• Part Number: HND312T106W
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 1200 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the Eaton HND312T106W? electricians and facility managers overseeing commercial spaces, industrial equipment rooms, or retrofit projects that demand reliable high-current protection. If you’re upgrading a panelboard or sourcing a replacement for a compatible Eaton system, this bolt-on breaker delivers robust performance with installation simplicity and trusted OEM compatibility.

Practical usage tips: ensure your panelboard is designed for bolt-on breakers and compatible with Eaton’s OEM line, follow proper torque and mounting procedures, and pair this unit with the correct trip settings for coordinated protection across downstream devices. For installations involving heavy motor loads or large feeders, this 1200A, 600V three-pole breaker provides the solid protection and endurance you need to keep critical systems running smoothly.