Square D EJB34015 - 15 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Square D EJB34015 is a 15A, 480V, 3-pole bolt-on molded case circuit breaker designed for dependable branch circuit protection in panelboards and loadcenters. Built for commercial, residential, and light industrial applications, this unit delivers robust overcurrent and short-circuit protection where three-phase power is in play.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing connection looseness and maintenance downtime in demanding electrical environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection across a wide range of loads and conditions, helping to prevent nuisance trips while guarding circuits against faults.
• OEM-compatible design ensures reliable performance when paired with matching Square D loadcenters and panelboards, simplifying installation and serviceability.
• Versatile 3-pole configuration is ideal for 480V three-phase distribution, making it a practical choice for commercial spaces and certain industrial setups requiring solid phase protection.

Who should consider this breaker? electrical professionals and installers working on panelboards and loadcenters that demand a trusted, bolt-on solution for branch circuits in three-phase systems. The EJB34015 excels in scenarios where secure mounting, predictable trip behavior, and compatibility with OEM equipment matter most — from commercial office wiring to light industrial distribution panels.

Why this breaker stands out

Unlike generic plug-in options, the bolt-on style of the EJB34015 anchors firmly into compatible Square D panels, delivering a longer-lasting, vibration-resilient connection. The combination of a molded case design with a thermal-magnetic trip mechanism provides a clear, reliable path to protecting expensive equipment and reducing downtime due to electrical faults.

Technical snapshot

• Manufacturer: Square D
• Part number: EJB34015
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 15 A
• Voltage rating: 480 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Shipped with the assurance you expect from AmpState, this Square D EJB34015 is ready to integrate into your 480V, three-phase distribution setup wherever reliable, OEM-compatible protection is needed. For installations that require precise protection without compromise, this bolt-on breaker delivers consistent performance and peace of mind.