XJL434400 | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

Meet the XJL434400—a rugged bolt-on circuit breaker built for demanding industrial environments. With a 400A rating across a 3-pole, 600V configuration, this unit delivers reliable overcurrent protection for large feeders and motor circuits in switchgear, panels, and retrofit projects. Designed for maintenance, retrofit, and replacement workloads where precise specifications matter, it’s engineered to slot into matching systems with confidence.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On
• Part number: XJL434400
• Best reference for compatibility: Use the part number to ensure a precise fit in matching panels and gear

Why this model stands out

• Secure bolt-on mounting provides a robust, vibration-resistant installation ideal for retrofit work and panels with space constraints.
• Three-phase protection ensures synchronized interruption across all poles, safeguarding multi-motor and three-phase feeder circuits.
• Industry-grade compatibility designed for 600V systems and applications that demand solid, field-proven performance.
• Clear reference point the XJL434400 part number is the most reliable way to verify compatibility with your existing gear.

Ideal applications

• Retrofit projects in existing industrial panels where bolt-on breakers are preferred for quick serviceability
• Replacements for worn or obsolete breakers in 600V, three-phase distribution systems
• Large motor feeders and high-current distribution lines in manufacturing facilities
• Maintenance-grade upgrades that standardize components across a facility’s electrical network

Compatibility & installation tips

Before ordering, confirm fit and ratings against your system specifications—the part number (XJL434400) is the best compatibility reference. Ensure your enclosure and bus-bar configuration align with bolt-on breakers and that the panel supports a 3-pole, 600V design. Keeping a matching spare on hand can reduce downtime during maintenance windows and streamline panel upgrades.