Siemens ED43B110L - 110 A, 480 V, 3-Pole Circuit Breaker | AmpState

Siemens ED43B110L is a 110A, 480V, 3-pole molded-case circuit breaker built to deliver reliable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters. Designed for versatile use across residential, commercial, and light-industrial environments, this unit helps protect critical electrical systems where dependable performance matters most. Key advantages

• Efficient panel space usage — a compact molded-case design that maximizes available space in both new installations and retrofit projects.
• Thermal-magnetic trip unit — combines a thermal element for stable overload protection with a magnetic element for rapid short-circuit interruption, ensuring repeatable protection across varying loads and temperatures.
• Three-pole configuration for three-phase systems — ideal for 480V three-phase distribution, motors, and equipment common in commercial and light-industrial applications.
• OEM compatibility — engineered to pair with matching Siemens OEM loadcenters and panelboards for smooth, code-compliant integration.
• Reliable 110A protection — precisely sized for feeders and branch circuits that require solid, predictable protection without unnecessary tripping.

Why this matters

The ED43B110L isn’t just a breaker with a rating. It delivers consistent trip characteristics and fast fault interruption when faults occur, helping you minimize equipment damage and downtime. Its molded-case construction reduces panel footprint without compromising protection, making it a practical choice for upgrading aging panels or designing compact electrical deployments in space-constrained environments.

Ideal use cases

• Commercial panelboards powering offices, retail spaces, and data closets with 3-phase equipment up to 480V.
• Light-industrial setups including conveyors, pumps, and HVAC fan stacks that rely on dependable three-phase protection.
• Residential applications where 3-phase distribution is present or required by specialty equipment, providing robust branch-circuit protection.

Product specifics at a glance

• Manufacturer: Siemens
• Part number: ED43B110L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 110A
• Voltage rating: 480V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Choose the Siemens ED43B110L for a dependable, space-conscious, 3-pole solution that aligns with Siemens OEM panel systems and delivers predictable protection across residential, commercial, and light-industrial deployments. Available through AmpState for projects that demand verified performance and straightforward compatibility with your existing panel infrastructure.