Siemens | EH3A100L | Circuit Breaker | 3-Pole | 480V

Siemens EH3A100L is a robust 3-pole circuit breaker designed for 480V three-phase power, making it an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter. When upgrading or restoring electrical distribution, this part offers the reassurance of precise compatibility with existing Siemens systems and panel configurations.

• Poles: 3-Pole — protects three-phase circuits in one compact package
• Voltage rating: 480V — suitable for standard industrial three-phase distribution
• Part reference: EH3A100L — using the exact part number ensures proper fit and compatibility

Why this Siemens breaker stands out: it embodies Siemens engineering standards, delivering predictable protection for three-phase loads while aligning with the form factor and ratings of both older and newer installations. This makes it especially valuable for facilities undergoing panel upgrades, equipment retrofits, or ongoing maintenance where a direct, drop-in replacement is essential.

Ideal use cases include:

• Retrofit projects in manufacturing lines that run 480V three-phase motors, conveyors, and controls
• Replacement in service panels where the existing part number needs to match precisely for continued code compliance and documented specs
• Maintenance stock for technicians who prioritize quick, reliable replacements with minimal downtime

Practical guidance for ensuring a correct match: confirm fit and ratings before ordering. The EH3A100L part number is the best reference for compatibility with your panel, enclosure, or control cabinet. If your documentation specifies this exact part, you’re likely aligned with the system’s protective requirements.

What to check before purchase (quick, technician-friendly checklist):

• Verify the part number on your old breaker matches EH3A100L exactly
• Confirm your system voltage is 480V and that a 3-Pole configuration is required
• Consult your panel or enclosure documentation to ensure the form factor and mounting style align with EH3A100L
• Keep a spare EH3A100L on hand for streamlined maintenance and reduced downtime

Who benefits most from this 3-pole, 480V Siemens breaker? Facilities engineers, maintenance teams in factories and warehouses, and OEMs performing panel retrofits or equipment replacements. It’s a practical, reliable solution for keeping three-phase systems protected and operating smoothly, with the reassurance that you’re choosing a genuine Siemens part designed to work harmoniously with existing infrastructure.