Eaton A2L4LPK - Circuit Breaker | AmpState

Designed for dependable, space-efficient protection, the Eaton A2L4LPK molded case circuit breaker is a go-to choice for panelboards and loadcenters. Built with a thermal-magnetic trip unit, it delivers stable, repeatable protection against overcurrent and short circuits, helping keep electrical systems safe and compliant.

Key advantages you’ll notice in everyday installations:

• Compact molded case design frees panel space, making it easier to fit additional circuits in tight panels.
• Thermal-magnetic trip unit provides precise, repeatable protection performance across a range of electrical conditions.
• Designed to be compatible with matching OEM loadcenters and panelboards, ensuring seamless integration with existing gear.
• Versatile across residential, commercial, and light industrial applications, from home sub-panels to small business electrical rooms.
• Reliable sourcing through AmpState, backed by Eaton’s robust protection technology.

Technical snapshot

• Manufacturer: Eaton
• Part Number: A2L4LPK
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical scenarios

• Upgrading or extending a panelboard where space is at a premium, thanks to its compact enclosure.
• Installing in new residential, commercial, or light industrial panels that require OEM loadcenter compatibility.
• Replacing worn breakers in existing installations while maintaining consistent trip characteristics with the original equipment.

Why this matters

The combination of a compact housing and a thermal-magnetic trip mechanism translates to safer, more predictable operation. In the event of a fault, the trip unit interrupts current quickly to protect connected equipment, wiring, and the panel itself. For engineers and electricians, the A2L4LPK offers a reliable, easy-to-spec solution that aligns with standard Eaton OEM equipment and typical panel configurations.

Notes on compatibility and installation

• Ensure the panelboard or loadcenter is designed to accept Eaton molded-case breakers of the A2L4LPK family or compatible OEM equivalents.
• Follow proper electrical code practices during installation, including secure terminations and appropriate torque.