Murray MP120 20A 1P Circuit Breaker, Plug-On | AmpState

The Murray MP120 20A 1P Plug-On Circuit Breaker is purpose-built for everyday electrical work, delivering dependable protection for panelboards, load centers, and distribution systems. Designed for retrofit projects and maintenance planning, this 1-pole breaker keeps your part numbers consistent while simplifying replacements when time matters most.

What makes the MP120 stand out

• Plug-On convenience: Quick, tool-free installation that snaps into compatible Murray panels, speeding up upgrades and service calls.
• Consistent part number for retrofit: MP120 remains the stable reference point across maintenance projects, reducing compatibility guesswork.
• Reliable protection: 20 Amp tripping capacity provides dependable circuit protection for everyday circuits, keeping devices and wiring safeguarded.
• Versatile application: Suitable for panelboards, load centers, and electrical distribution setups where a single-pole, 20A breaker is required.

Specifications at a glance

• Amperage: 20 A
• Poles: 1 Pole
• Type: Circuit Breaker
• Mounting: Plug-On
• Manufacturer: Murray
• Part Number: MP120
• Availability: Available from AmpState

Ideal use cases

• Retrofitting older panels where keeping the exact part number reduces downtime and ordering complexity.
• Maintenance planning that benefits from a consistent, readily identifiable component in inventory.
• Electrical distribution projects where a reliable 1P, 20A breaker is needed to protect lighting, receptacle, or small appliance circuits.
• Quick replacements during servicing of panelboards and load centers without rewiring or extensive panel modification.

How this helps you compare to alternatives

For retrofit and maintenance workflows, the MP120’s plug-on design minimizes installation steps and aligns with established Murray panel configurations. The fixed part number across jobs reduces mis-orders, helping you keep critical projects moving without unnecessary delays.

Need help confirming compatibility? Message us and we’ll help you confirm fit. This ensures you’re selecting the right MP120 breaker for your Murray panel or distribution setup, so you can proceed with confidence and minimal downtime.