Eaton PDG33M0400FNNN Circuit Breaker, 400A, 3-Pole

Eaton PDG33M0400FNNN is a 3-pole circuit breaker rated at 400 A, purpose-built for industrial electrical service, maintenance, and replacement projects. Use the part number PDG33M0400FNNN to confirm compatibility with your panel, switchgear, or service disconnect before you buy.

Engineered for demanding environments, this molded-case circuit breaker delivers reliable overcurrent protection for three-phase power distributions. It provides fast, safe disconnection during fault conditions, helping to safeguard feeders, motors, and downstream equipment from damage and unplanned downtime.

• Three-pole configuration fits typical 3-phase industrial systems found in manufacturing, process lines, and large facilities
• 400 A rating supports high-current feeders and main disconnects in mid-to-large installations
• Rugged, industrial-grade construction designed to perform in switchgear, panelboards, and service entrances
• Part-number defined compatibility means you can verify fit with confidence using PDG33M0400FNNN and your application requirements
• Compatible with existing Eaton architectures, enabling smoother maintenance and seamless part replacements
• Need help confirming compatibility? Message us and we’ll assist with part-number matching and application fit

Ideal for: facilities engineers, maintenance technicians, and procurement teams tasked with upgrading or maintaining industrial power distribution. Typical use cases include replacing an aging main breaker, adding a 3-phase feeder, or modernizing switchgear with a trusted Eaton solution.

Practical considerations: always verify the exact fit by cross-checking the PDG33M0400FNNN part number against your equipment specifications and application requirements. For installation, follow your organization’s safety procedures and the manufacturer’s guidance to ensure proper mounting, wiring, and disconnection practices. If you’re unsure about compatibility, reach out—we’re ready to help with part-number matching and installation planning.