ITE | CJ3F400 | Circuit Breaker | 400A | 3-Pole | 600V | Bolt-On

Meet the ITE CJ3F400 circuit breaker—a rugged, bolt-on solution engineered for demanding 600V electrical systems. With a 400A rating and a 3-Pole design, this unit is built to protect high-current circuits while fitting seamlessly into compatible panels. When you need a precise, maintenance-ready replacement, the CJ3F400 delivers the right specifications in a compact, field-ready package.

Core specifications at a glance

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Mounting: Bolt-On
• Part reference: CJ3F400

What makes the CJ3F400 stand out

• Exact form factor and mounting pattern for straightforward bolt-on installation in compatible panels, minimizing modification time and downtime.
• Specifically matched to 600V distribution schemes, providing reliable protection for multi-phase circuits without over- or under-sizing.
• Designed for maintenance, retrofit, and replacement scenarios where precise spec alignment is essential to keep systems running smoothly.

Ideal use cases

• Retrofit projects where an existing panel requires a 400A, 3-Pole, 600V bolt-on breaker to restore or upgrade protection.
• Maintenance replacements in industrial control rooms, manufacturing lines, and critical power distributions that demand exact specifications.
• New installations or panel upgrades that specify the CJ3F400 form factor and current rating to ensure compatibility and reliable performance.

Installation and compatibility notes

Before ordering, verify fit and ratings to ensure seamless replacement. The CJ3F400 part number is the best reference for compatibility with your panel and bus system. If your maintenance or retrofit plan calls for a 600V, 400A, 3-pole bolt-on breaker, this unit is designed to meet those exact requirements with a straightforward, secure installation.

Practical tips for reliable performance

• Keep a spare CJ3F400 on hand for planned maintenance or unexpected panel downtime.
• Ensure the electrical gear is de-energized and de-pressurized before replacement to maintain safety and protect components.
• Follow manufacturer torque specifications for bolt-on mounting to guarantee a solid, vibration-resistant connection in fluctuating operating conditions.
• Store in a clean, dry environment to prevent corrosion or contamination that could affect performance.

For professionals executing panel retrofits, replacements, or maintenance, the ITE CJ3F400 bolt-on circuit breaker provides a precise, dependable solution crafted to meet exacting 600V, 400A, 3-pole requirements.