Square D EJB14060 - 60 A, 277 V, 1-Pole Bolt-On Circuit Breaker | AmpState

The Square D EJB14060 is a 60A, 277V, 1-pole bolt-on molded case circuit breaker engineered to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built for installers who demand a robust, reliable protection device that stands up to real-world electrical environments, this unit is a confident choice for commercial and light industrial applications as well as residential panels that require commercial-grade protection.

Why this breaker stands out

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing movement and arcing risk in panels prone to vibration or dynamic loads.
• Thermal-magnetic trip unit offers stable, repeatable protection by combining thermal overload sensing with instantaneous magnetic trip for short-circuit events—helping prevent nuisance trips while safeguarding circuits.
• OEM compatibility designed to work with matching Square D load centers and panelboards, making replacements and upgrades straightforward without compromising performance.
• Versatile, practical rating 60A at 277V suits commercial lighting or other 277V branch circuits common in offices, retail spaces, and light industrial settings.

Practical advantages and use cases

Ideal for installations where reliability and quick, decisive protection matter. Use this 1-pole bolt-on breaker to shield individual branch circuits feeding lighting, receptacle banks, or other 277V loads inside panelboards. Its rugged bolt-on design helps maintain a solid connection in environments with equipment vibration or temperature fluctuations, reducing the likelihood of loose connections over time.

In new builds or panel upgrades, the EJB14060 provides a clean, OEM-matched solution that aligns with the electrical architecture of Square D systems. It’s a solid choice for electricians who value compatibility, performance, and long service life in commercial and light-industrial installations.

Specifications at a glance

• Manufacturer: Square D
• Part Number: EJB14060
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 60A
• Voltage Rating: 277V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Applications: Branch circuit overcurrent and short-circuit protection

Presented by AmpState, the Square D EJB14060 is a purpose-built solution for reliable protection where it matters most—in panelboards and load centers that serve everyday electricity needs in commercial spaces and beyond. If you’re upgrading an existing system or outfitting a new installation, this bolt-on breaker delivers precise protection, a solid mechanical connection, and OEM compatibility that helps maintain system integrity over the long term.