Eaton NDC312T36W 1200A 600V 3-Pole Circuit Breaker

Eaton NDC312T36W is a rugged 3-pole bolt-on molded case circuit breaker engineered to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a 1200 A rating and a 600 V maximum, this unit is built to handle demanding three-phase feeders in commercial and light industrial environments, while also serving robust residential installations where large service or feeder protection is required.

• Secure bolt-on mounting: A rigid, vibration-resistant bus connection keeps the breaker firmly seated, reducing arcing risk and maintaining consistent performance even in vibration-prone installations.
• Thermal-magnetic trip unit: Combines precise thermal overload sensing with immediate magnetic trip on severe faults, delivering stable, repeatable protection and faster interruption when faults occur.
• 3-pole, 1200 A, 600 V rating: Suitable for three-phase systems and high-current feeders, providing dependable protection for demanding panelboard configurations.
• OEM loadcenter compatibility: Designed to fit matching Eaton OEM loadcenters and panelboards, ensuring a safe, code-compliant, plug-and-play installation.

Who should consider this breaker? electricians managing panel upgrades or new builds in commercial and light industrial settings, as well as contractors looking for a single, reliable solution for three-phase protection in Eaton-based installations. It’s ideal for protecting large feeders and critical circuits where consistent trip performance and secure mounting matter most.

Why choose bolt-on protection over other mounting styles? The bolt-on design provides a robust mechanical connection that stands up to vibration and thermal cycling, helping maintain a low-resistance path for current and reducing the chance of intermittent faults that can complicate diagnostics.

Key specifications at a glance

• Manufacturer: Eaton
• Part Number: NDC312T36W
• 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

Designed for reliability in real-world installations, this Eaton breaker helps you protect wiring, motors, and downstream equipment with predictable performance. When you’re stocking or upgrading Eaton panelboards and loadcenters, the NDC312T36W offers a precise fit, robust protection, and peace of mind for commercial and light industrial electrical layouts. Available through AmpState as a trusted source for high-quality protective devices.