Square D EGB14015 - 15 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Overview

The Square D EGB14015 is a 15-amp, 277-volt, 1-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Engineered for installation efficiency and long-term reliability, it’s the smart choice for electrical layouts where clean, secure protection matters.

Why it stands out

• Secure bolt-on mounting: Provides a rigid, vibration-resistant connection to the bus, making service and replacement straightforward and minimizing connection creep in busy electrical environments.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by reacting to both overload and short-circuit conditions, reducing nuisance trips and protecting downstream devices.
• 1-pole, 15A, 277V: Ideal for single-phase branch circuits in lighting and general-purpose loads common in commercial spaces that use 277V distribution.
• OEM-compatible: Designed to pair with matching Square D OEM load centers and panelboards for seamless integration and proven performance.
• Versatile applications: Suitable for residential, commercial, and light industrial environments where reliable circuit protection is critical.

Practical use cases

Install the EGB14015 on 277V circuits such as office lighting banks, commercial HVAC controls, or lighting feeders in warehouses. Its 1-pole configuration is ideal for protecting a single branch circuit without adding extra poles, helping you optimize panel space and maintain a tidy, organized panelboard lineup.

What to expect in installation

With bolt-on mounting, you get a solid bus connection that resists loosening from vibrations and circuit interruptions. This reduces downtime during maintenance and lowers the risk of intermittent faults in busy electrical rooms. Always ensure the breaker matches your panelboard’s specifications and that the line and load terminals are properly torqued to the manufacturer’s guidelines.

Technical snapshot

• Manufacturer: Square D
• Part Number: EGB14015
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 15A
• Voltage Rating: 277V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Stocked by AmpState, this Square D EGB14015 is ready to ship and fit into compatible panelboards and load centers, delivering dependable protection where it matters most. Whether you’re upgrading an older panel or stocking for routine installations, this breaker provides a reliable, specification-aligned solution for 277V single-pole circuits.