Siemens ED23B045L - 45 A, 240 V, 3-Pole Circuit Breaker | AmpState

Siemens ED23B045L is a 45A, 240V, 3-pole molded-case circuit breaker engineered to protect branch circuits inside panelboards and loadcenters from overcurrent and short-circuit events.

Its compact molded-case design makes efficient use of limited panel space, a real advantage in retrofit projects, multi-breaker panels, or installations where every inch matters.

• Thermal-magnetic trip unit combines precise thermal overload sensing with instantaneous magnetic trip action, delivering stable, repeatable protection and reducing nuisance trips.
• OEM-compatible installation is built to pair with matching Siemens loadcenters and panelboards, ensuring coordinated protection and straightforward replacement when you need to expand or update a system.
• Versatile applications cover residential, commercial, and light industrial environments, from home panels to small business electrical rooms requiring a reliable 240V circuit breaker.

Specifications at a glance

• Part Number: ED23B045L
• Amperage Rating: 45A
• Voltage Rating: 240V
• Number of Poles: 3
• Type: Thermal-magnetic molded-case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and practical scenarios include adding a dedicated 240V circuit for equipment like air conditioning units, pumps, or large power tools in a residential or light commercial setting, or upgrading an existing Siemens panel to improve overall protection coordination.

Why this matters: by delivering reliable protection with a space-efficient design and OEM-aligned compatibility, the ED23B045L helps you maintain safer electrical systems, minimize downtime, and simplify future panel updates without sacrificing performance.

Tip for installation: verify that your panelboard is designed to accept a 3-pole 240V breaker of this type, and follow Siemens installation instructions for proper mounting, alignment, and electrical connections.