Siemens JXD22B300 - 300 A, 240 V, 2-Pole Circuit Breaker | AmpState

Powered by Siemens and brought to you by AmpState, the JXD22B300 is a robust 300A, 240V, 2‑pole molded case circuit breaker engineered for dependable branch‑circuit overcurrent and short‑circuit protection in panelboards and load centers. When you need a reliable, high‑capacity protection device that fits cleanly into space‑conscious electrical panels, this unit delivers.

Why this 2‑pole molded case breaker stands out

• Compact molded case design maximizes panel space without compromising protection, making it ideal for installations where panel room is at a premium.
• Thermal‑magnetic trip unit provides stable, repeatable protection performance, with precise response to both overloads and sudden short circuits.
• OEM‑compatible for seamless integration is designed to pair with matching Siemens OEM load centers and panelboards, ensuring reliable operation and straightforward replacement.
• Versatile for multiple environments—suitable for residential, commercial, and light industrial applications requiring robust protection for large branch circuits.

Technical snapshot

• Manufacturer: Siemens
• Part Number: JXD22B300
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 300 A
• Voltage Rating: 240 V
• Number of Poles: 2
• Application: Branch circuit overcurrent and short‑circuit protection

Ideal use cases

• Upgrading or provisioning large residential service panels where 300A protection is required for main feeders or substantial branch circuits.
• Commercial panelboards providing protection for heavy‑duty circuits such as HVAC equipment, processing loads, or large lighting and power distribution runs.
• Light industrial installations needing a dependable, high‑ampacity protective device that fits within standard Siemens OEM ecosystems.

Practical guidance and value

• Why choose Siemens JXD22B300? It combines high current capacity with a space‑saving design and a proven thermal‑magnetic trip mechanism, delivering predictable protection aligned to panelboard specs.
• Compatibility matters For optimal performance and warranty adherence, pair this breaker with matching Siemens OEM panelboards and load centers designed for this model.
• Installation mindset Plan for straightforward replacement in compatible panels, with correct alignment to bus stabs and adherence to all local electrical codes and Siemens installation guidelines.

Whether you’re outfitting a new build, upgrading an existing panel, or stocking parts for reliable field service, the Siemens JXD22B300 (AmpState) provides solid, high‑capacity protection with the assurance of OEM compatibility. A trusted choice for serious electrical protection needs.