Square D EDB34080 Circuit Breaker 80A 3P 480V 3PH EDB 80 Amp 3 Pole

Square D EDB34080 Circuit Breaker: 80A, 3-Phase, 480V Built by Square D for reliable electrical distribution in demanding environments, this 3-pole circuit breaker protects three-phase feeders with precision and confidence. Designed to support panel upgrades, retrofit projects, and maintenance replacement work, it’s a trusted component for those who value uninterrupted power and protected circuits.

Engineered for professional use, the EDB34080 delivers steady, predictable protection in industrial and commercial settings where downtime isn’t an option. Its 80 amp rating and 480V capacity make it a practical choice for heavy-load feeders, providing robust protection for motors, compressors, conveyors, and other three-phase equipment.

Why this breaker stands out

• Proven Square D reliability: backed by a brand known for durable electrical protection and broad regional support, ensuring parts availability and service continuity.
• 3-pole, 480V three-phase protection: ideal for commercial and industrial circuits that require balanced protection across all phases.
• Efficient panel maintenance: a solid option for service work, quick panel upgrades, and retrofit projects where dependable performance matters.
• Stock-ready spare for MRO teams: maintain readiness with a proven, compatible component that minimizes downtime during maintenance windows.
• Designed for demanding environments: built to withstand the rigors of active electrical distribution, helping protect critical equipment and reduce nuisance trips.

Key specifications

• Amperage rating: 80 A
• Voltage rating: 480V
• Poles / configuration: 3-pole
• Phase: 3PH
• Series / model: EDB34080

Ideal use cases

• Panel upgrades in industrial facilities where existing 3-phase feeders require higher reliability and protection.
• Retrofit projects in commercial buildings that need to modernize protection without reworking the entire distribution system.
• Maintenance replacement work where a proven, widely available component helps crews restore service quickly.
• Stocking spare parts in MRO catalogs to reduce downtime during preventive maintenance or unexpected outages.

Practical guidance for installation and use

Before installing, confirm compatibility with your panel labeling and the EDB family requirements. Use the correct torque specifications and mounting hardware as outlined in the manufacturer’s guidance. When replacing a failed breaker, verify that the new unit matches the original amperage, voltage rating, and pole configuration to maintain proper overload protection and upstream coordination. Keep the surrounding panel area clear and follow standard safety practices to protect personnel during replacement or service work.