Square D EGB36030 - 30 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Square D EGB36030 is a purpose-built 30A, 600V, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built to stay put, its secure bolt-on mounting creates a rigid, vibration-resistant connection to the bus, helping maintain consistent protection even in environments with equipment vibration or where panels are subject to movement. A thoughtful thermal-magnetic trip unit sits at the heart of this breaker, providing stable, repeatable protection for both overload and short-circuit events. That means fewer nuisance trips and a quick, predictable response when currents spike, helping safeguard wiring, devices, and downstream circuits. Compatible with matching OEM load centers and panelboards, this EGB36030 is designed to slot into systems that require an authentic, matched fit—reducing the guesswork during new installations, panel upgrades, or panelboard repairs. Who this is for - Electrical professionals overseeing residential, commercial, or light industrial electrical distributions who need a reliable three-pole solution for 3-phase circuits. - Technicians replacing worn or degraded breakers in existing panelboards that require Square D bolt-on components. - Projects where a robust, industry-standard 30A, 600V breaker is needed to manage branch circuit overcurrent and short-circuit protection without sacrificing panel compatibility. Key benefits that set this model apart - Bolted, vibration-resistant mounting: The bolt-on design delivers a solid, low-gap connection to the bus, reducing looseness over time and maintaining consistent trip performance in demanding environments. - Thermal-magnetic protection: The combination of thermal and magnetic trip mechanisms provides accurate overload protection and fast interruption during short circuits, helping minimize damage to conductors and connected equipment. - OEM-specific compatibility: Engineered to work with Square D load centers and panelboards that require EGB-series breakers, ensuring a clean, reliable fit without aftermarket guesswork. - Versatile, high-ready rating: With a 600V rating, this unit is suited for a range of commercial and light industrial applications, expanding the options for safe and compliant distribution across multiple sections of a facility. - Clear, durable construction: Molded-case design supports long service life in everyday electrical environments, delivering predictable performance over time. What it does in practice - Protects three-phase branch circuits in panelboards and load centers from overloads and short circuits, helping prevent insulation damage, wiring degradation, and equipment failure. - Provides a practical upgrade path for upgrading or expanding electrical capacity in existing systems that require a bolt-on 3-pole solution. - Supports installations where a consistent, reliable protective device is needed across multiple panels sharing a common electrical feed or distribution scheme. Technical snapshot (as a quick reference) - Manufacturer: Square D - Part Number: EGB36030 - Type: Thermal-magnetic molded case circuit breaker - Amperage Rating: 30A - Voltage Rating: 600V - Number of Poles: 3 - Mounting Style: Bolt-on - Application: Branch circuit overcurrent and short-circuit protection Practical tips and insights - When selecting a replacement or upgrade, confirm your panelboard’s OEM compatibility to ensure seamless mounting and coordinated trip characteristics. - For retrofit projects, verify the existing bus connections and mounting hardware to support a secure bolt-on installation and maintain electrical continuity. - Consider pairing this 3-pole unit with complementary Square D components designed for your panel family to maintain consistency in protection and trip performance across the distribution system. In short, the Square D EGB36030 provides a proven balance of sturdy physical mounting, precise protective performance, and panel compatibility that’s well-suited for three-phase distribution in residential-adjacent commercial spaces and light industrial environments. If you’re looking for a trusted, bolt-on 3-pole solution that delivers reliable overcurrent and short-circuit protection without compromising panel fit, this EGB36030 is a strong, pattern-consistent choice.