Siemens | EH3A020 | Circuit Breaker | 3-Pole | 480V

Siemens EH3A020 is a rugged 3-pole circuit breaker designed for demanding 480V three-phase systems. Built for reliability in maintenance, retrofit, and replacement projects, it helps keep industrial and commercial electrical installations running smoothly.

Why this part matters for your setup:

• 3-Pole configuration delivers protection for 3‑phase circuits, simplifying panel layouts and reducing wiring complexity.
• 480V rating aligns with higher-voltage distribution needs found in industrial environments, ensuring appropriate interruption for fault conditions on multi-phase networks.
• Authentic Siemens part with the EH3A020 designation, offering consistent performance and compatibility within Siemens-compatible panels and hardware ecosystems.
• Direct-fit replacement and retrofit potential to minimize downtime when upgrading or restoring panel functionality in existing systems.
• Clear compatibility reference—the part number is the best guide to fit, ratings, and electrical characteristics your panel requires.

Key use cases

• Retrofits and replacements in 3‑phase distribution panels that run on 480V systems.
• Maintenance cycles for industrial equipment, manufacturing lines, and commercial power distribution networks.
• Upgrades or refurbishments where matching Siemens specifications ensures consistent electrical protection.

What to check before ordering

• Confirm fit by cross-referencing your panel label and service documentation with the EH3A020 part number.
• Verify that the 3-pole, 480V rating matches the intended circuit and that the surrounding bus assembly accepts this Siemens model.
• Use the part number EH3A020 as the primary reference for compatibility to avoid mismatches in ratings or form factor.

Specifications at a glance

• Poles: 3-Pole
• Voltage: 480V

Designed for professionals who demand dependable, straightforward compatibility in Siemens‑based electrical infrastructure, the Siemens EH3A020 3‑Pole 480V circuit breaker is a practical choice for keeping power systems safe, compliant, and ready for operation. Whether you’re performing routine maintenance, executing a retrofit, or replacing a worn-out unit, this part provides a concrete, exact-match solution that aligns with your existing equipment and service procedures.