Square D EJB34080 - 80 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Power your electrical distribution with precision and reliability using the Square D EJB34080. This 80A, 480V, 3-pole bolt-on molded case circuit breaker is engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for demanding environments, it combines secure mounting, robust protection, and OEM compatibility to simplify upgrades and replacements.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection, reducing movement and wear in panels installed in commercial or industrial settings.
• Thermal-magnetic trip unit delivers stable, repeatable protection performance, responding to long-term Overcurrent conditions and providing instantaneous trip on high-energy short circuits.
• OEM-compatible design is matched to Square D load centers and panelboards, ensuring a seamless fit, streamlined maintenance, and fewer compatibility concerns during installation.
• Three-pole configuration for 3-phase systems makes it ideal for commercial and light industrial applications that require coordinated protection across all phases.
• Amperage and voltage specification—80A rating at 480V—suits mid-range distribution needs while delivering reliable interrupting capacity for common panelboard setups.

Why this matters

• Reliable protection in residential, commercial, and light industrial environments helps minimize downtime and equipment damage from overloads or short circuits.
• Bolt-on installation supports straightforward retrofits or panel upgrades, with a mount that resists loosening in vibration-prone spaces.
• Consistent performance across operating conditions ensures predictable protection behavior, reducing nuisance trips and maintenance surprises.

Technical details at a glance

• Manufacturer: Square D
• Part Number: EJB34080
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 80 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and load centers

Designed for electricians and specifier professionals, the Square D EJB34080 is a practical choice when you need reliable 3-phase protection that fits cleanly into compatible OEM panels. Whether you're installing new equipment in a light industrial setting or upgrading an existing commercial panel, this breaker delivers the performance you can count on with a straightforward, bolt-on installation and a trip mechanism you can trust.