Eaton HKD3150X - 150 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton HKD3150X, a robust 150A, 600V, 3-pole bolt-on molded case circuit breaker designed to safeguard branch circuits in panelboards and load centers. Its secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, helping maintain dependable electrical contact in demanding environments.

Why the HKD3150X stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection that stays reliable through equipment movement and maintenance cycles.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, calmly handling overloads and short circuits without nuisance trips.
• 3-pole design supports three-phase applications and comprehensive multi-pole protection within standard panelboards.
• OEM-compatible designed to work with matching load centers and panelboards, ensuring proper fit and coordinated protection.
• AMPS and voltage suitable for mid-size circuits rated at 150A and 600V, making it a versatile choice for a range of installations.

Ideal applications and practical use cases

The HKD3150X is well-suited for residential, commercial, and light industrial settings where reliable branch circuit protection is essential. Use cases include protecting feeders and branch circuits in panelboards and load centers, retrofits where bolt-on breakers are standard, and projects requiring dependable three-pole protection for three-phase or multi-pole configurations. Its compatibility with matching OEM hardware helps streamline installation and maintenance, reducing the risk of misfits or mismatched trip characteristics.

How it protects your system

With a thermal-magnetic trip mechanism, the HKD3150X reacts to both overload conditions and short-circuit events. The thermal element handles gradual overcurrent conditions, while the magnetic element provides fast response to dangerous short circuits. This combination minimizes potential damage to wiring, devices, and downstream equipment, and helps you avoid disruptive outages.

Technical highlights

• Manufacturer: Eaton
• Part number: HKD3150X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 150 A
• Voltage rating: 600 V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

For projects that demand dependable, compatible protection in panelboards and load centers, the Eaton HKD3150X delivers precise, durable performance you can count on—and it’s designed to align with your existing OEM installations for a smooth, reliable upgrade or replacement.