Eaton HMCPS150U4X - 150 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton HMCPS150U4X—a 150 A, 600 V, 3‑pole molded case circuit breaker designed to guard your panelboards and loadcenters from overcurrent and short-circuit events. Built for dependable protection in today’s distributed electrical systems, this unit pairs compact craftsmanship with robust performance to keep modern installations safe and continuous.

Why this breaker stands out

• Efficient panel space utilization: Its compact molded case design fits neatly into tighter panel configurations, helping you maximize usable space without sacrificing protection.
• Thermal-magnetic protection you can rely on: The integrated thermal-magnetic trip unit delivers stable, repeatable protection across a range of currents and temperatures, reducing nuisance trips and ensuring fast response to genuine faults.
• 3-pole configuration for 3‑phase systems: Ideal for commercial and light industrial setups that run on three-phase distribution, providing coordinated shutoff of all phases for safe fault isolation.
• OEM panel compatibility: Designed to be compatible with matching Eaton OEM loadcenters and panelboards, simplifying replacement and upgrade work.
• Versatile applications: Suitable for residential, commercial, and light industrial environments where reliable branch-circuit protection is essential.

How it protects your electrical system

With currents that exceed the 150 A rating or in the event of a short circuit, the breaker’s thermal element responds to heat generated by overloads, while the magnetic element engages during high fault currents. This dual action interrupts power quickly and cleanly, minimizing damage to conductors, devices, and downstream equipment while helping your system meet safety and code requirements.

Technical snapshot

• Manufacturer: Eaton
• Part number: HMCPS150U4X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 150 A
• Voltage rating: 600 V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases

• Upgrading or installing panelboards in commercial spaces, retail environments, and light industrial facilities that run on 3-phase power.
• Replacing aging or non‑matching breakers in OEM Eaton panels to maintain coordinated protection and consistent trip settings.
• Protecting critical loads in small-to-midsize electrical systems where space efficiency and reliable disconnection are priorities.

Practical tips for best results

• Verify that your panelboard or loadcenter is designed for 3‑pole molded case breakers and 600 V systems before installation.
• Match the HMCPS150U4X with the corresponding Eaton panel family to ensure optimal trip curves and mechanical fit.
• Consider loading margins on the 150 A rating to maintain a comfortable safety buffer for future expansion or unexpected load growth.
• Plan for periodic inspection and torque verification per your facility’s maintenance plan to preserve electrical integrity and reliability.

Discover reliable, space‑savvy protection with the Eaton HMCPS150U4X. It’s purpose-built for dependable branch circuit safety in panelboards and loadcenters, delivering precise, durable performance when it matters most.