Siemens | HE43B030 | Circuit Breaker | 30A | 3-Pole | 480V | Bolt-On

The Siemens HE43B030 is a rugged, ready-for-action circuit breaker designed for 480V three-phase systems and 30A protection. Built to meet the demands of maintenance, retrofit, and replacement projects, this 3-Pole, bolt-on unit integrates smoothly into compatible panels while preserving electrical safety and system reliability.

Key benefits you’ll notice in real-world installations:

• Direct part reference: Part number HE43B030 serves as the most reliable compatibility guide when sourcing a matching breaker.
• Precise specifications: 30A current rating, 3-pole configuration, and 480V operating voltage ensure accurate protection for 3-phase feeders and motors.
• Bolt-On mounting: The bolt-on design simplifies installation and allows firm, secure mounting in appropriate switchgear and control panels.
• Targeted use cases: Ideal for maintenance upgrades, retrofit projects, and replacement of worn or obsolete breakers in 480V, 3-phase systems.
• Fit-for-purpose reminder: Confirm fit and ratings before ordering to ensure seamless integration with your existing equipment.

Why choose Siemens for 3-phase protection matters. The HE43B030 provides dependable interruption across all three phases, helping protect valuable equipment from overloads and short circuits while supporting orderly shutoff in fault conditions. Its 480V rating matches common industrial distributions, making it a practical choice for panel upgrades and modernization efforts without overhauling entire electrical architectures.

Practical use scenarios include:

• Upgrading control panels in manufacturing lines that operate on 480V three-phase power
• Retrofit projects where a precise 30A, 3-Pole bolt-on breaker is required to restore original protection standards
• Motor feeders and distribution circuits in process environments where reliable circuit protection is critical

Compared to other protection options, the Siemens HE43B030 offers a straightforward, compatible replacement path for equipment that specifies a 30A, 3-Pole, 480V bolt-on breaker. By sticking to the exact part reference, you minimize compatibility risks and downtime, ensuring your protection scheme remains consistent with your existing Siemens hardware.

Ready to proceed? Use the HE43B030 as your compatibility anchor, verify the match to your panel and ratings, and install with the confidence that comes from Siemens engineering designed for demanding industrial environments.