Eaton | HKDB3100 | Circuit Breaker | 100A | 3-Pole | 600V

Meet the Eaton HKDB3100 Circuit Breaker—a robust, three-pole protection device designed for demanding 3-phase electrical systems. With a 100 A rating and a 600 V maximum voltage, it’s built to perform in maintenance, retrofit, and replacement projects where exact specifications matter.

Key details at a glance

• Amperage: 100 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Part number: HKDB3100
• Compatibility note: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Why this Eaton breaker stands out

In environments where three-phase protection matters, the HKDB3100 delivers dependable interruption for distribution and motor circuits. Its specification alignment—100 A, 3-Pole, 600 V—maps cleanly to common commercial, industrial, and HVAC applications, ensuring you get the right piece for the job without guesswork. By centering on the exact part number, you simplify retrofits and replacements and reduce the risk of mismatched components in critical power paths.

Ideal use cases

• Retrofit projects in 3-phase panels where a like-for-like replacement is required
• Maintenance of existing industrial feeders and motor control circuits
• Replacement during upgrades of commercial electrical distribution to improve reliability
• New installations that necessitate a 100 A, 3-Pole, 600 V protection device within Eaton-compatible systems

Practical guidance for selection and installation

• Use the HKDB3100 part number as the primary reference to ensure exact fit and compatibility with your Eaton panel or enclosure.
• Verify the panel labeling and upstream protection requirements to confirm that a 100 A, 3-Pole, 600 V device meets the targeted protection scheme.
• Plan for professional installation by a qualified electrician to ensure correct wiring, mounting, and safe operation within your electrical distribution system.

What to expect in operation

When integrated into a three-phase distribution path, the HKDB3100 offers straightforward, reliable protection for feeders and motors up to its rated amperage. It helps guard essential equipment from overloads and short circuits, supporting smoother operation in environments such as manufacturing floors, commercial facilities, and service-critical electrical rooms.

To proceed with confidence, match the part number HKDB3100 to your existing Eaton setup, confirm the fit, and verify rating requirements before ordering. This targeted approach minimizes downtime and ensures your three-phase system remains protected with components designed to work together.