Square D EGB14025 - 25 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Power reliability meets compact single-pole protection with the Square D EGB14025. This 25 A, 277 V, 1-pole bolt-on molded case circuit breaker is built to safeguard branch circuits in panelboards and loadcenters, delivering dependable protection where it matters most—office buildings, retail spaces, and light industrial environments. Available from AmpState, it’s ready for retrofit or new installations that demand a secure, vibration-resistant connection and precise trip behavior.

• for a rigid, vibration-resistant bus connection that stays secure in environments with motion or chatter.
• Thermal-magnetic trip unit provides stable, repeatable protection against overloads and short circuits, helping minimize nuisance trips while guarding the circuit.
• 1-pole, 25 A, 277 V design tailored for single-phase branch circuits commonly found in commercial lighting, office equipment, and similar loads.
• Molded case construction combines compact form with robust insulation and safe interruption performance for everyday panelboard use.
• OEM compatibility is designed to pair with matching Square D OEM load centers and panelboards, ensuring straightforward replacement or upgrading without masonry or chassis changes.
• Versatile applications suitable for residential, commercial, and light industrial settings where reliable protection and easy installation are priorities.

Technical snapshot

• Manufacturer: Square D
• Part Number: EGB14025
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25 A
• Voltage Rating: 277 V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why this breaker is the right choice for your panel

In commercial and light industrial environments, 277 V circuits power essential lighting and equipment. The EGB14025 delivers predictable performance, preserving circuit integrity during peak loads or fault conditions. Its bolt-on design provides a solid mechanical bond that resists vibration and panel movement—a practical advantage in spaces with HVAC equipment, busy electrical rooms, or retrofit scenarios where panel alignment isn’t perfectly static.

Ideal use cases include upgrading aging panelboards, replacing a failed 1-pole breaker on a 277 V branch circuit, or expanding a system where additional 25 A protection is required without changing the panel footprint. Because it’s designed to match OEM load centers, you can expect a seamless fit and straightforward maintenance, minimizing downtime and keeping critical lighting and devices online.

Practical tips for installation and operation

• Verify that your panelboard supports bolt-on 1-pole breakers from the Square D family and that the EGB14025 matches the intended 277 V circuit rating.
• Ensure the circuit load does not exceed the 25 A rating to prevent nuisance trips and extend component life.
• When replacing an existing breaker, inspect the bus connections and mounting hardware to confirm a clean, secure seat for the bolt-on fasteners.
• Keep spare EGB14025 breakers on hand for rapid servicing in critical installations, such as commercial lighting circuits or essential equipment feeds.

Choose the Square D EGB14025 for a reliable, straightforward solution that balances robust mechanical design with precise electrical protection. It’s a practical, industry-ready option for safeguarding 277 V single-pole branch circuits in panelboards and loadcenters—backed by the trusted Square D lineage and available from AmpState.