Siemens | E43B110 | Circuit Breaker | 110A | 3-Pole | 480V

Siemens E43B110 Circuit Breaker is a high- reliability protection device built for 480V, three‑phase power, delivering 110A of current rating across three poles. Designed by Siemens, this breaker is tailored for industrial environments where precise protection and dependable performance matter in daily operations. This unit is ideal for maintenance, retrofit, and replacement projects where exact specifications are required. When upgrading or repairing a distribution panel, choosing the E43B110 ensures you’re matching the exact form, fit, and electrical characteristics your system expects—helping minimize downtime and preserve safety standards. Key specifications

• Amperage: 110A
• Poles: 3-Pole
• Voltage: 480V
• Part number: E43B110

Why this Siemens breaker stands out

• Exact compatibility: The E43B110 part number is the best reference for matching against Siemens panels and approved switchgear, reducing guesswork during replacements.
• Reliability in demanding environments: Built to handle continuous 3‑phase loads in commercial and industrial settings, helping protect motors, drives, and other critical equipment.
• Streamlined maintenance and retrofits: A straightforward upgrade path when you need to bring legacy systems up to current protection standards.

Who this is for

• Facilities with 480V three‑phase distribution networks seeking reliable overcurrent protection.
• Maintenance teams performing panel retrofits or replacements and needing a precise 3‑pole, 110A solution.
• Industrial environments such as manufacturing floors, data centers, and commercial power rooms where panel uptime matters.

Compatibility and ordering notes

Important: Confirm fit and ratings before ordering. The E43B110 part number is the most reliable reference for compatibility with your Siemens switchgear and associated panels.

Practical tips for use

• Cross-check the existing breaker’s part number and mounting style to ensure seamless replacement.
• Verify that your wiring and load configurations align with a 110A, 3‑pole, 480V protection device to avoid nuisance trips or mismatched protection levels.
• Store and handle breakers in a dry, clean environment until installation to prevent corrosion or damage to terminals.