Square D EDB14045 - 45 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Discover the Square D EDB14045, a 45A, 277V, 1-pole bolt-on molded case circuit breaker designed to shield branch circuits in panelboards and load centers. Built by Square D, this unit combines robust construction with precise protection, delivering reliable performance in residential, commercial, and light industrial environments. Available from AmpState, it’s a dependable choice when you need consistent overcurrent and short-circuit protection.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection for dependable, long-term operation.
• Thermal-magnetic trip unit delivers stable, repeatable protection as temperatures and loads fluctuate.
• 1-pole, 45A rating targets single-circuit protection with precise current handling.
• 277V rating makes it well-suited for commercial lighting and other 277V circuits.
• OEM compatibility designed to work with matching Square D panelboards and load centers for seamless integration.
• Versatile application ideal for residential, commercial, and light industrial electrical protection needs.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: EDB14045
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 45A
• Voltage Rating: 277V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases and scenarios

Use the EDB14045 to safeguard a single branch circuit in panelboards and load centers that serve commercial lighting, receptacle runs, or small machinery loads operating at 277V. It’s an excellent retrofit option for aging installations that need a reliable bolt-on solution, ensuring a solid bus connection even in environments with vibration or movement. For project planners and electricians, this breaker offers a straightforward drop-in replacement that aligns with Square D’s OEM panels, reducing compatibility concerns and installation time.

Installation, compatibility, and tips

Designed to pair with matching OEM Square D load centers and panelboards, the EDB14045 simplifies procurement and stocking. Its bolt-on mounting provides a secure, vibration-resistant connection that helps maintain consistent electrical performance in the field. When selecting this breaker, confirm that your panelboard is rated for 277V circuits and supports a single-pole, 45A device in the intended location.

Why choose this Square D breaker from AmpState

If you’re sourcing dependable branch circuit protection with a proven thermal-magnetic trip design, the EDB14045 delivers precise protection for everyday electrical loads. Its combination of bolt-on reliability, volt-age compatibility with 277V systems, and OEM-panel compatibility makes it a practical, long-term choice for installers focused on safety, performance, and project efficiency.