Siemens | E43M100 | Circuit Breaker | 100A | 3-Pole | 480V | Bolt-On

Siemens E43M100 Circuit Breaker is a bolt-on, 100A protection solution crafted for demanding 480V three‑phase systems. Designed for reliability in real-world industrial environments, this 3‑pole breaker is an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter.

• Amperage: 100 A
• Poles: 3-Pole
• Voltage: 480 V
• Mounting: Bolt-On
• Part number: E43M100

Where it shines: use this breaker to protect feeders and motor circuits in manufacturing facilities, warehouses, and other industrial settings powered by 480V three‑phase systems. It’s an exact match for retrofit and replacement projects where you need the same protection characteristics and form factor as the original equipment.

Compatibility notes: Confirm fit and ratings before ordering. Part number is the best reference for compatibility. This bolt-on design is intended for panels and enclosures that support Siemens bolt-on breakers, ensuring a secure, code‑compliant installation when paired with the appropriate bus and mounting hardware.

Why choose the Siemens E43M100: built on Siemens engineering principles, it offers predictable trip performance, solid mechanical integrity, and alignment with Siemens protection standards. Its 100A rating and 3‑pole configuration make it a practical, long‑term component for controlling three‑phase power feeds in industrial settings, with availability of genuine replacement parts to keep your system running smoothly.

Installation and use tips: plan for a bolt-on installation in a compatible panel, torque to the panel manufacturer’s specification, and verify electrical ratings to ensure proper coordination with upstream protection. This unit is best installed by a licensed electrician or authorized technician familiar with Siemens distribution equipment.

Ready to safeguard your 480V three‑phase infrastructure with a trusted, purpose‑built solution? Add the Siemens E43M100 Circuit Breaker to your order and ensure robust protection for your critical power systems.