Eaton | CHKD3400 | Circuit Breaker | 400A | 3-Pole | 600V

The Eaton CHKD3400 is a 400A, 3-pole circuit breaker engineered for robust protection in industrial electrical systems. With a 600V rating, it is designed to safely interrupt fault currents and protect downstream equipment in demanding environments.

Built for maintenance, retrofit, and replacement projects where exact specifications matter, this unit ensures you can restore or upgrade your distribution panel with a like-for-like Eaton solution.

Key compatibility and ordering note: the CHKD3400 part number is the most reliable reference for matching breakers to your panel. Before purchasing, verify that the fit and ratings align with your equipment and local electrical codes.

Specifications at a glance

• Amperage: 400 A
• Poles: 3-Pole
• Voltage: 600 V

Ideal use cases

• Maintenance on existing Eaton panels that require a like-for-like 400A, 3-pole, 600V breaker
• Retrofit projects upgrading protection to a higher-capacity 400A circuit in medium- and large-scale electrical distributions
• Replacement of failed breakers in industrial facilities, manufacturing lines, or data centers using Eaton gear

Why choose this Eaton CHKD3400 breaker

• Exact form factor and electrical interface designed to fit compatible Eaton panels, reducing installation time and uncertainty
• Trusted Eaton engineering and compatibility with Eaton distribution systems
• Clear reference point for purchasing and procurement with the CHKD3400 part number

Practical tips: Always consult your panel’s documentation and a licensed electrician to confirm compatibility. Cross-reference the CHKD3400 with your panel catalog, and check for any model-specific requirements such as mounting arrangement and electrical clearances.