Siemens | JXD22S400AL | Circuit Breaker | 400A | 2-Pole | 240V

Siemens JXD22S400AL is a high-capacity circuit breaker built for demanding 240V electrical systems. With a 400A rating and 2-pole configuration, it delivers reliable overcurrent protection for your most critical circuits, making it ideal for both maintenance and upgrade projects that require exact specifications.

Key specifications

• Amperage: 400 A
• Poles: 2-Pole
• Voltage: 240 V
• Part number: JXD22S400AL

Why this Siemens breaker stands out

• Exact-match compatibility for panels and feeders that require a 400A, 2-pole, 240V protective device, reducing installation guesswork and rework.
• Cross-reference reliability: the part number JXD22S400AL is the most precise indicator for compatibility and future maintenance.
• Solid Siemens engineering means consistent performance in retrofit, replacement, and routine service scenarios where dependable protection matters most.

Fit, use, and practical considerations

Before ordering, verify that your equipment calls for a 400A, 2-Pole, 240V breaker and that the line-up matches the JXD22S400AL specification. The part number is the clear reference point for ensuring the right device is installed in your panel or distribution system, minimizing downtime and compatibility risk during maintenance or upgrades.

Common use cases

• Maintenance or replacement in commercial or industrial panels that require a 400A, 2-Pole, 240V protection device.
• Retrofits where exact specifications are essential to maintain panel labeling, trip characteristics, and system protection.
• Upgrading service capacity or replacing a failed unit with a like-for-like component to preserve electrical safety and reliability.