Eaton HND312T35W - 1200 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Eaton HND312T35W is a 3-pole bolt-on molded case circuit breaker engineered to safeguard your electrical distribution with precision and durability. With a 1200A ampacity and a 600V rating, this unit is built for reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters.

The bolt-on mounting delivers a rigid, vibration-resistant bus connection, helping maintain stable protection even in environments with shifting loads or equipment vibration. Its thermal-magnetic trip unit provides fast, dependable response to both overloads and short circuits, delivering consistent protection and reducing the chance of nuisance trips over time. Designed to work seamlessly with matching OEM loadcenters and panelboards, it offers a predictable, coordinated protection scheme across your distribution system.

Key benefits that matter in practice

• Secure bolt-on mounting for a solid, vibration-resistant connection in busy panels.
• Thermal-magnetic protection combines strict overcurrent control with reliable short-circuit interruption for continuous equipment protection.
• OEM-compatible design ensures smooth replacements or upgrades within Eaton loadcenters and panelboards.
• Three-pole configuration delivers balanced, three-phase protection ideal for commercial and light industrial applications.
• High-capacity rating at 1200A and 600V to handle demanding circuits and larger distribution loads.

Technical snapshot

• Manufacturer: Eaton
• Part number: HND312T35W
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 1200A
• Voltage rating: 600V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Install the HND312T35W in commercial sub-panels, industrial control centers, or residential-commercial hybrids where you need robust, reliable protection for large branch circuits. It’s particularly well-suited for panels that require OEM compatibility to ensure coordinated protection characteristics and a trouble-free replacement path.

Practical guidance for installers

• Pair this breaker with Eaton OEM loadcenters and panelboards to maintain ensured trip coordination and performance.
• Plan for future load growth in commercial or light industrial settings, leveraging the 1200A capacity to accommodate expanding circuits.