Siemens ED43B030 - 30 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED43B030 - 30A, 480V, 3-Pole Bolt-On Circuit Breaker is built for dependable branch circuit protection in panelboards and load centers, delivering consistent safety and reliability across commercial and light industrial applications. This molded case breaker combines robust construction with precise protection features, designed to stand up to the demands of demanding electrical environments.

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection for stable operation in panels subject to movement or vibration.
• Thermal-magnetic trip unit delivers stable, repeatable protection by reliably responding to overloads and short circuits, helping to minimize nuisance trips and enhance system uptime.
• Three-pole design supports 480V three-phase circuits, making it ideal for commercial distributions and light industrial power systems.
• OEM-compatible with matching Siemens OEM load centers and panelboards, ensuring straightforward integration into existing installations.
• Durable molded-case construction built to endure everyday electrical stresses while delivering dependable performance over time.
• Versatile for multiple sectors — suitable for residential, commercial, and light industrial applications where reliable protection is essential.

Technical specifications at a glance

• Manufacturer: Siemens
• Part Number: ED43B030
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who benefits most from the Siemens ED43B030? Projects that rely on compact, secure, three-phase protection—think commercial storefronts, office complexes, warehouses, and light industrial equipment rooms where a dependable 30A, 480V solution is needed. If your panelboard is designed for bolt-on breakers, this unit delivers a tighter bus connection, reduced vibration-induced wear, and a more robust install than equivalent plug-on designs.

Practical usage notes to maximize performance: pair this breaker with compatible Siemens panelboards and OEM load centers, confirm that your system operates within 480V three-phase service, and follow all applicable electrical codes during installation. For ongoing reliability, ensure secure mounting per panel manufacturer guidelines and maintain routine inspections of connections in high-vibration environments.