Eaton | CK3400EE | Circuit Breaker | 400A | 3-Pole | 600V

Eaton CK3400EE Circuit Breaker — a rugged, OEM-aligned solution delivering dependable overcurrent protection for demanding three-phase systems. With a 400A rating, 3-pole configuration, and a 600V voltage rating, this breaker is purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications at a glance

• Amperage: 400 A
• Pole configuration: 3-Pole (common trip)
• Voltage rating: 600 V
• Compatibility: Part number CK3400EE ensures precise fit in Eaton-compatible panels and enclosures

Why the CK3400EE stands out

• The CK3400EE is specifically identified for matching Eaton panel systems. Before ordering, verify fit and ratings using the exact part number to ensure seamless substitution in your distribution network.
• A 3-Pole design provides synchronized trip for all phases, simplifying maintenance and enhancing safety during servicing of motors and large loads.
• Built to handle the demands of commercial and industrial applications where high-current protection and fast fault isolation are critical.

Ideal use cases

• Maintenance or retrofit of existing Eaton panels that require a 400A, 3-Pole, 600V breaker.
• Replacement of aging or failed breakers in industrial facilities, manufacturing lines, or large-capacity feeders.
• Upgrading electrical infrastructure for three-phase motor loads, conveyors, HVAC equipment, or heavy machinery that run on 600V systems.

Practical guidance for procurement and installation

• Confirm fit first: Use the CK3400EE part number as the primary reference when checking compatibility with your panel or enclosure.
• Match the environment: Ensure the installed breaker’s amperage, pole count, and voltage align with the circuit being protected.
• Safety and compliance: Installation and servicing should be performed by qualified electricians following local electrical codes and standards.

This description reflects the Eaton CK3400EE’s core strengths: high-current, three-phase protection in a format designed for reliable replacement and modernization of existing electrical installations. If your project requires a precise 400A, 3-Pole, 600V solution that fits Eaton-panel ecosystems, the CK3400EE is engineered to deliver consistent performance and streamlined compatibility.