Eaton HND312T36W 1200A 600V 3-Pole Circuit Breaker

The Eaton HND312T36W is a robust 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a 1200 A rating and a 600 V capability, this unit is designed to handle demanding power needs in residential, commercial, and light industrial environments. Available from AmpState, it pairs seamlessly with matching OEM loadcenters to deliver a reliable, code-ready protection solution.

Key advantages that keep your power system safer

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection for long-term reliability in challenging installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection—quickly responding to short circuits while preventing nuisance trips during normal inrush or transient loads.
• Three-pole design supports balanced protection across three-phase circuits, reducing the risk of uneven loading and improving overall system safety.
• OEM-compatible compatibility with matching loadcenters and panelboards simplifies integration and minimizes retrofit headaches.

Ideal applications and scenarios

• New installations in commercial spaces with large feeder circuits and three-phase equipment.
• Upgrading or expanding existing panelboards and loadcenters that require higher current protection.
• Light industrial electrical systems where reliable, high-capacity overcurrent protection is essential for equipment uptime.
• Residential or commercial projects that demand a rugged, maintenance-friendly breaker with a proven track record.

Technical snapshot

• Manufacturer: Eaton
• Part Number: HND312T36W
• 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

Why this breaker stands out

Beyond delivering standard protection, the HND312T36W is built for environments where reliability matters most. The bolt-on design minimizes connection resistance and loosening risks in vibration-prone installations, while the thermal-magnetic trip mechanism provides precise, predictable protection across a wide range of operating conditions. Its high current rating makes it a practical solution for panels that service substantial equipment loads, helping facilities avoid cascading faults and unscheduled downtime.

Installation and practical tips

• Pair this 3-pole breaker with compatible Eaton OEM panelboards and loadcenters to ensure optimal performance and guaranteed fit.
• Plan for three-phase applications where balanced protection is critical to system safety and efficiency.
• Verify that your enclosure and wiring infrastructure are rated for 600 V and comfortably handle up to 1200 A to avoid any mismatch with the breaker’s capabilities.
• Store and handle the unit with care to maintain the integrity of the thermal-magnetic trip mechanism and ensure consistent protection over time.

For robust, high-capacity protection in panelboards and loadcenters, the Eaton HND312T36W delivers dependable overcurrent and short-circuit protection with a design that prioritizes secure mounting, reliable trip performance, and seamless OEM compatibility. Add this 1200 A, 600 V, 3-pole bolt-on breaker to your electrical system from AmpState and protect your critical circuits with confidence.