Eaton ND312T36W - 1200 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton ND312T36W is a high-current, three-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a robust bolt-on mounting and a thermal-magnetic trip unit, it combines secure installation with precise, repeatable protection for demanding electrical systems.

Key features that matter in real-world electrical distribution:

• Secure bolt-on mounting creates a rigid, vibration-resistant bus connection, reducing loose contacts and ensuring stable performance in challenging environments.
• Thermal-magnetic trip unit provides stable, repeatable protection against both gradual overcurrent and instantaneous short circuits, helping to prevent nuisance trips and equipment damage.
• 3-pole configuration supports three-phase systems, making it ideal for commercial and light industrial applications where coordinated protection across phases is essential.
• 600V rating paired with a 1200A amperage rating enables protection of high-capacity circuits while meeting common industrial and building distribution requirements.
• Bolt-on molding ensures compatibility with matching OEM load centers and panelboards, simplifying integration into existing electrical architectures.
• Designed for versatility suitable for residential, commercial, and light industrial applications, providing a single solution across multiple project types.

What problems does it solve?

When you’re wiring large distribution panels, reliable protection is critical. The ND312T36W tackles overcurrent and short-circuit events at the source, preventing damage to conductors, equipment, and downstream devices. Its bolt-on design minimizes connection issues in installations subject to vibration or movement, while the thermal-magnetic trip unit reduces the risk of nuisance trips in varying ambient conditions.

Who is this ideal for?

Electrical contractors and facility engineers who specify or replace panelboards and load centers in commercial or light industrial spaces will appreciate the ND312T36W. It’s also a solid choice for projects requiring high-current, three-pole protection that aligns with OEM panels, ensuring a cohesive, code-compliant distribution system.

Installation and compatibility

Pair this bolt-on molded case circuit breaker with matching Eaton OEM load centers and panelboards to maintain a unified protection strategy. The bolt-on mounting supports a secure, vibration-resistant installation, while the 3-pole configuration ensures synchronized protection across all three phases. Always verify system voltage, conductor sizing, and panel compatibility to meet local electrical codes and safety standards.

Technical specifications at a glance

• Manufacturer: Eaton
• Part number: ND312T36W
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 1200A
• Voltage rating: 600V
• Poles: 3
• Mounting style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection for panelboards and loadcenters

With the Eaton ND312T36W, you’re choosing a purpose-built solution that delivers high-current protection with installation reliability. It’s the practical, code-conscious choice for safeguarding large distribution circuits in residential-adjacent and commercial settings alike.