Square D EJB14030EPD 30A 1-Pole 277 V Circuit Breaker Potential Transformer

Power your commercial electrical panel with precision and reliability. The Square D EJB14030EPD 30A 1-Pole 277 V Circuit Breaker Potential Transformer is engineered to protect circuits while providing usable measurement data for energy management and protection schemes. Built on the trusted Square D platform, this device is designed for 277 V applications and single-pole protection, delivering clean trips and clear electrical visibility when faults occur.

• Current rating: 30 A
• Poles: 1
• Voltage rating: 277 V
• Part Number: EJB14030EPD

Key differentiators

• Integrated potential transformer functionality: Designed to support metering and protection relays, enabling better visibility into load conditions and easier integration with building automation and energy management systems.
• Compact, reliable protection: A single-pole device that fits standard Square D panels while delivering dependable interruption at the designed 30 A rating.
• 277 V readiness: Ideal for commercial lighting and distribution circuits commonly run at 277 V, helping simplify design and compliance in larger facilities.

Use cases and ideal applications

• Commercial lighting branches and auxiliary circuits in office buildings, shopping centers, and healthcare facilities that operate at 277 V.
• Circuit protection in panel boards where monitoring, data collection, or integration with protection relays is beneficial.
• Systems requiring a measurable current path for energy audits, demand management, or remote diagnostics.

Why choose this breaker

• Specific to Squared D reliability and compatibility, ensuring smooth panel integration and predictable trip behavior.
• Clear alignment between protection and measurement capabilities helps reduce downtime and simplifies maintenance planning.
• Particularly valuable in settings where data from the breaker supports alarms, metering, or control strategies.

If you’re upgrading panels, retrofitting 277 V circuits, or engineering a more observant electrical distribution, the Square D EJB14030EPD 30A 1-Pole 277 V Circuit Breaker Potential Transformer offers targeted protection with actionable measurement data. Ensure the device is installed in accordance with local electrical codes and panel listings to maximize safety and performance.