Siemens JXD62B300 300A 2P 600V Circuit Breaker, Bolt-On | AmpState

Meet the Siemens JXD62B300 — a purpose-built bolt-on circuit breaker designed to deliver reliable protection in panelboards, load centers, and electrical distribution setups. With its 2-pole design and a robust 300 A rating at 600 V, this unit is a trusted choice for demanding electrical environments where precise, fast-acting fault interruption matters.

Overview of advantages

The JXD62B300 excels in scenarios where retrofit work or maintenance planning requires keeping an exact part number for continuity. Its bolt-on mounting provides a secure, field-friendly installation path that aligns with compatible Siemens panelboard configurations, helping you minimize downtime and keep service up and running.

Key features and benefits

• Bolt-On design: Enables straightforward, stable mounting in compatible panels, reducing installation time and ensuring solid electrical contact.
• 2 Poles for effective protection of multi-wire circuits and broader distribution applications.
• 300 A amperage rating with a 600 V maximum voltage, suitable for high-demand electrical feeds in commercial or industrial environments.
• Part Number stability: Specifically chosen to maintain consistent ordering and replacement fit in ongoing maintenance schedules.
• Manufacturer reliability: Siemens engineering ensures compatibility with Siemens-compatible panelboards and distribution systems.

Ideal use cases

• Retrofit projects where the exact JXD62B300 part number must be preserved for service continuity.
• Maintenance planning and orderly replacements in existing electrical distributions that rely on bolt-on Siemens breakers.
• Panelboard and load center upgrades where a sturdy, high-current, 2-pole solution is required to protect feeders and critical circuits.

Why choose this product

Beyond its technical specs, the Siemens JXD62B300 addresses real-world needs: fewer part-number mismatches during repairs, quicker field replacements thanks to bolt-on mounting, and dependable protection for high-demand circuits. This is the type of breaker that facilities teams and electrical contractors rely on when reliability and consistency matter most.

Compatibility and support

Available from AmpState, the JXD62B300 is backed by straightforward compatibility guidance. If you’re unsure about fit for your panelboard or distribution setup, you can message AmpState for help confirming compatibility with your exact installation. This ensures you choose the right part the first time, reducing downtime and return trips.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: JXD62B300
• Amperage: 300 A
• Poles: 2
• Voltage: 600 V
• Type: Circuit Breaker
• Mounting: Bolt-On

For reliable circuit protection that matches your existing Siemens infrastructure and maintenance schedules, the Siemens JXD62B300 is a precise, dependable choice. AmpState makes it easy to secure the right part for your panelboard or load center today.