Siemens JXD23B350L - 350 A, 240 V, 3-Pole Circuit Breaker | AmpState

Siemens JXD23B350L is a 350A, 240V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. This unit is built to fit tighter spaces while delivering robust protection for demanding electrical environments.

• Space-efficient design: Compact molded case construction maximizes panel space, helping you design cleaner, more efficient electrical layouts without compromising safety.
• Thermal-magnetic trip: The integrated thermal-magnetic trip unit provides stable, repeatable protection, ensuring reliable responses to overloads and rapid disconnection during short circuits.
• Three-pole configuration: Three-phase protection ideal for commercial and light industrial applications, including balanced motor loads and multi‑phase feeders.
• High-current capability: With a 350A rating at 240V, it’s well-suited for heavy feeders and main circuit protection in larger panelboards and loadcenters.
• OEM-compatible: Designed to pair with matching Siemens OEM load centers and panelboards for seamless integration and verified performance.
• Versatile applications: Suitable for residential, commercial, and light industrial installations that require durable, reliable branch-circuit protection and rapid fault isolation.

Why this breaker matters: In any electrical system, the right 3-pole molded case breaker protects both people and equipment. The JXD23B350L combines a compact footprint with a robust thermal-magnetic trip, giving you precise protection against overloads and short circuits while keeping panel layouts tidy and serviceable.

Practical use cases:

• Upgrading panelboards in commercial facilities to accommodate higher-demand equipment and three-phase circuits
• Providing reliable protection for large feeders feeding HVAC gear, pumps, and three-phase motors in light industrial settings
• In new installations where space is at a premium but strong protection is non-negotiable

Specifications at a glance:

• Part Number: JXD23B350L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 350A
• Voltage: 240V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Upgrade or install with confidence—the Siemens JXD23B350L delivers dependable protection, efficient panel space usage, and seamless compatibility with Siemens load centers and panelboards for a cohesive, reliable electrical system.