Siemens JXD23B225L - 225 A, 240 V, 3-Pole Circuit Breaker | AmpState

The Siemens JXD23B225L is a 225A, 240V, 3-pole molded case circuit breaker designed to deliver dependable overcurrent and short-circuit protection in panelboards and load centers. Built for demanding electrical environments, this unit blends compact form with powerful protection, making it a trusted choice for serious distribution needs.

Why the Siemens JXD23B225L stands out

• Compact molded case design maximizes panel space, making it easier to fit large feeders and maintain an organized electrical enclosure.
• Thermal-magnetic trip unit provides stable, repeatable protection across varying temperatures and loads, reducing nuisance trips while maintaining fast response to faults.
• OEM-compatible fit engineered for seamless compatibility with matching Siemens OEM load centers and panelboards, ensuring clean electrical coordination and reliable performance.
• High-current capability with a 225A rating suits heavy feeder circuits, main feeders, and distribution paths within panelboards and load centers.
• 3-pole configuration supports 3-phase 240V circuits, ideal for residential, commercial, and light industrial applications where three-phase protection is required.

Who this is ideal for

Whether you’re upgrading a tired panel, expanding a commercial distribution system, or designing a light-industrial installation, the JXD23B225L delivers reliable protection for critical circuits. It’s particularly well-suited for:

• Residential and multi-family panels with higher feeder demands
• Small to mid-size commercial panels requiring robust 3-phase protection
• Light industrial distribution where dependable branch-circuit protection is essential

What problems it solves

By combining a compact enclosure with a thermal-magnetic trip, the JXD23B225L helps prevent damage from overloads and short circuits, minimizes unplanned downtime, and supports safer, more predictable power distribution across panelboards and load centers.

Key specifications

• Manufacturer: Siemens
• Part Number: JXD23B225L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 225A
• Voltage Rating: 240V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical installation and use tips

For reliable results, pair the JXD23B225L with matching Siemens OEM load centers and panelboards to maintain proper electrical coordination and listing. Verify panel compatibility before replacement, and follow standard wiring practices for 3-pole 240V feeders, including appropriate conductor sizes and torque specifications for secure terminations. This breaker is designed to be a durable, long-term solution for demanding electrical systems.