Eaton Cutler-Hammer UVH5LP21K 1200A 24V Circuit Breaker, Undervoltage Release | AmpState

Eaton Cutler-Hammer UVH5LP21K is a high-capacity 1200 A, 24 V undervoltage-release circuit breaker designed for everyday electrical work. Built to protect panelboards, load centers, and distribution networks, this device combines rugged overcurrent protection with an integrated undervoltage release to ensure safe, predictable shutdown when control power is lost.

Key advantages that make it a smart choice for both upgrades and maintenance:

• Direct BOM-compatible replacement — specifically positioned to keep your original part numbers intact, simplifying parts stocking and minimizing project downtime.
• High-current performance — 1200 A rating provides robust protection for feeders and bus systems in commercial and industrial environments.
• Undervoltage release (UVR) — ensures the breaker trips when control voltage drops, preventing unintended energization and improving overall system safety.
• Panel and distribution protection — ideal for use in panelboards, load centers, and electrical distribution setups where reliable protection and control coordination are critical.
• Availability through AmpState — ready to ship, with expert assistance to confirm compatibility and fit for your application.

Who should consider this model? Engineers, electricians, and maintenance teams working on legacy installations or new builds that require a BOM-faithful, 24 V undervoltage-release solution for high-current circuits. It’s particularly well-suited for replacement projects where maintaining original specifications is essential, such as data centers, manufacturing floors, and critical building services where uptime and safety are paramount.

Practical use cases include replacing aging or obsolete control circuitry in panelboards and load centers, stocking spares to reduce outage risk, and aligning assemblies with the original equipment manufacturer (OEM) design philosophy. If you’re unsure about fit, AmpState offers support to verify part numbers and compatibility so you can order with confidence.

Technical snapshot

• Amperage: 1200 A
• Voltage: 24 V
• Undervoltage release: integrated
• Part number: UVH5LP21K
• Manufacturer: Eaton Cutler-Hammer

Choose the UVH5LP21K when you need a BOM-faithful, high-current undervoltage-release breaker that delivers dependable protection in critical electrical infrastructure. Reach out for compatibility confirmation if you’re integrating this part into a legacy panel or a new build—we’ll help ensure a perfect fit.