Siemens | HE43B070 | Circuit Breaker | 70A | 3-Pole | 480V | 25kA | Bolt-On

When your industrial electrical system needs reliable, compliant overcurrent protection, the Siemens HE43B070 circuit breaker delivers. This 3-pole, 70-amp device is built for 3-phase 480V networks and handles fault currents up to 25kA, making it a robust choice for demanding environments.

Key features you can rely on:

• Amperage: 70 A
• Poles: 3-Pole, three-phase protection
• Voltage rating: 480 V
• Interrupting capacity: 25 kA, ensuring rapid fault interruption to protect equipment and personnel
• Mounting type: Bolt-On, providing secure, vibration-resistant installation in compatible panels
• Part number: HE43B070 for precise compatibility tracking

What makes this Siemens breaker different from generic options lies in its alignment with Siemens switchgear systems and its suitability for retrofits and replacements where exact specifications matter. It's designed for installations where 3-phase protection at 480V is required, and it supports retrofit projects that require matching ratings and bolt-on mounting.

Real-world use cases:

• Maintenance: Replace a failed 3-pole 480V breaker in an industrial control panel with an exact HE43B070 to minimize downtime.
• Retrofit: Upgrade legacy gear to a Siemens-compatible 3P 480V solution with a 25kA interrupt rating to improve protection against high fault currents.
• Replacement: Maintain consistency in panel design by selecting the exact part number HE43B070 for future service parts.

Compatibility and installation tips:

• Always confirm fit and ratings before ordering by referencing the part number HE43B070 against your panel's documentation.
• Because this is a Bolt-On style breaker, ensure your enclosure supports bolt-on mounting and follow proper torque and bus-bar alignment procedures as outlined in the installer manual.
• For high fault-current environments, the 25kA interrupt rating provides a margin of protection for upstream equipment and wiring.

Designed for professionals who demand reliability and precise matching with Siemens electrical systems, the HE43B070 is a dependable choice for industrial facilities, manufacturing lines, and critical infrastructure that rely on stable 3-phase protection at 480V. If you’re updating or replacing parts, this breaker’s exact specifications and trusted Siemens engineering make it the right fit for ongoing system integrity.