Square D EHB14020 20A 1P 277V Circuit Breaker, Bolt-On | AmpState

The Square D EHB14020 is a reliable circuit breaker designed to protect panelboards, load centers, and electrical distribution systems. This 20 A, 1-pole device operates at 277 V and uses a bolt-on mounting for secure, durable installation in compatible enclosures. Built for replacements and new builds alike, it helps you maintain the original BOM while delivering dependable overcurrent protection where it’s needed most.

• Brand: Square D
• Part Number: EHB14020
• Type: Circuit Breaker
• Amperage: 20 A
• Poles: 1
• Voltage: 277 V
• Mounting: Bolt-On
• Applications: Panelboards, load centers, electrical distribution
• Ideal for: Replacement projects and stocking spares aligned to the original BOM
• Availability: Available from AmpState

Why this bolt-on design matters: it provides a robust mechanical connection that stands up to the vibration and loading found in commercial and industrial panels, making replacements quicker and downtime shorter when you need to restore protection to a circuit.

Ideal scenarios include stocking this exact part for maintenance inventories, performing panel replacements that require matching the original Square D part number, or integrating into service upgrades where 277 V, 1-pole protection is required. By keeping the BOM consistent with the original installation, you minimize configuration mismatches and ensure smooth panel operations.

Compatibility & Support

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Secure the right protection for your electrical distribution system. Order the Square D EHB14020 20A 1P 277V Bolt-On circuit breaker from AmpState and keep your panels running with confidence.