Siemens ED43B030 - 30A, 3-Pole, Circuit Breaker

Siemens ED43B030 is a robust 30A, 3-pole circuit breaker engineered for dependable overcurrent protection in demanding electrical environments. With a 3-pole configuration, it safeguards three-phase power systems across panelboards, switchboards, and control panels, delivering reliable performance where it matters most.

Designed for industrial, commercial, and OEM applications, the ED43B030 supports safe operation and resilient protection for distribution panels and motor control centers. Its three-pole design ensures synchronized trip activity across all phases, helping prevent phase imbalances and equipment damage in complex machinery and automated systems.

• Provides coordinated protection for 3-phase circuits, ensuring swift, simultaneous disconnection across all live conductors.
• Ideal for medium-load feeders and motor circuits commonly found in industrial applications.
• Suitable for panelboards, switchboards, and control panels in both new installations and upgrades.
• Seamlessly aligns with other Siemens protection devices and panel components for consistent performance and straightforward maintenance.
• Built to endure the rigors of demanding environments while delivering predictable trip behavior.

What this means in practice

For maintenance teams and electrical designers, the Siemens ED43B030 offers a trusted solution for protecting motors, conveyors, pumps, and other three-phase equipment. In motor control centers, it helps prevent nuisance trips and supports reliable startup sequences. In distribution applications, it contributes to safer, more stable power distribution and easier fault isolation.

Ideal use cases

• Three-phase motor protection in manufacturing and processing facilities
• Feeder protection in panelboards and switchboards for commercial or light-industrial environments
• Control-panel protection for automation and CNC systems
• OEM electrical cabinets requiring reliable, standardized overcurrent protection

Specification snapshot

• Current rating: 30 A
• Poles: 3-Pole
• Breaker type: Circuit Breaker
• Applications: panelboards, switchboards, control panels, motor control centers

Choosing the Siemens ED43B030 means opting for a dependable protection solution that supports safe operation, minimizes downtime, and simplifies maintenance across your electrical distribution system. It’s designed to meet the needs of demanding industrial environments while staying compatible with the broader Siemens protection ecosystem.