Siemens | EH3A110L | Circuit Breaker | 110A | 3-Pole | 480V

Safeguard your 3‑phase 480V distribution with the Siemens EH3A110L circuit breaker. Designed for maintenance, retrofit, and replacement projects, this unit delivers reliable overcurrent protection precisely where you need it. When exact specifications matter, the EH3A110L is the reference you want—ensuring seamless compatibility and dependable performance in demanding industrial environments.

Key specifications

• Amperage: 110 A
• Poles: 3-Pole
• Voltage rating: 480 V
• Part reference: EH3A110L
• Type: Circuit breaker designed for Siemens-compatible panels and assemblies

What makes this breaker uniquely valuable

Unlike generic replacements, the EH3A110L is built to align with Siemens panel architectures and electrical standards. Its three-pole design provides coordinated protection across all phases in 480V systems, helping prevent unbalanced loads and minimizing the risk of arc faults in three-phase installations. The 110A rating is ideal for medium-load circuits, offering robust protection without unnecessary nuisance tripping in properly sized systems.

Ideal use cases

• Retrofits: Replace aging or non-Siemens breakers in existing Siemens-compatible panels to restore original performance and protection levels.
• Maintenance cycles: Keep a ready, OEM-referenced component on hand for quick, exact replacements.
• New installations with 480V three-phase service: Ensure your protection device matches the system voltage and phase configuration.
• Industrial and manufacturing environments where precise specification matching minimizes compatibility risk and downtime.

Compatibility and installation notes

Before ordering, confirm that your equipment accepts the EH3A110L and that the 110 A ballast aligns with your load requirements. The part number is the best reference for ensuring a proper fit and reliable operation within your Siemens ecosystem. For optimal results, reference your panel labeling and system design documents to verify that a 3‑pole 480V configuration is required and that 110 A is the appropriate protective setting for the circuit in question.

Why choose Siemens for your 480V protection needs

Siemens delivers deterministic performance with components designed to integrate smoothly into standardized electrical architectures. The EH3A110L embodies that approach—offering precise specifications, proven reliability, and a straightforward, OEM-aligned solution for critical circuit protection. This is especially valuable for facilities prioritizing consistent inventory, predictable maintenance intervals, and coordinated protection across your 3‑phase network.