Square D EGB34020SA - 20 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D EGB34020SA — a 20A, 480V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built to withstand vibration and busy electrical environments, this unit combines precise thermal-magnetic protection with a secure mounting design, delivering reliable performance in a range of settings from residences to light industrial facilities.

Why the Square D EGB34020SA stands out

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, reducing the risk of loose connections and ensuring consistent protection in dynamic electrical environments.
• Thermal-magnetic trip unit provides stable, repeatable overcurrent and short-circuit protection, with responsive performance across varying loads and motor inrush conditions.
• 3-pole, 480V configuration perfectly suited for three-phase distribution, making it ideal for commercial equipment, HVAC systems, and light industrial circuits.
• OEM panel compatibility ensures seamless replacements in matching Square D load centers and panelboards, simplifying installation and maintenance.
• Rugged molded case design supports long service life in demanding environments, delivering dependable protection for critical electrical systems.

Ideal for whom and where

Electricians, facilities managers, and specifiers choosing reliable protection for 480V three-phase networks will appreciate the EGB34020SA. It’s well-suited to offices, retail spaces, small manufacturing setups, and light industrial installations where dependable branch-circuit protection and compact, bolt-on mounting are priorities.

Practical use cases

• Protect three-phase feeders feeding commercial equipment and machinery in panelboards and load centers.
• Safeguard HVAC compressors and motors from overcurrent events without sacrificing quick, predictable trips during start-up surges.
• Replace or retrofit compatible OEM breakers in Square D panelboards with a bolt-on solution that maintains alignment and performance.
• Install in environments where vibration resistance and secure mounting reduce wear on terminations and bus connections.

Specifications at a glance

• Manufacturer: Square D
• Part number: EGB34020SA
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 20 A
• Voltage rating: 480 V
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Square D EGB34020SA when you need a robust, three-phase protection solution for 480V systems that fits snugly into compatible panelboards and load centers. With its secure bolt-on design, precise thermal-magnetic protection, and OEM-panel compatibility, this breaker helps you keep critical electrical systems running safely and reliably.