ITE | LL3B300 | Circuit Breaker | 300A | 3-Pole | 600V | Bolt-On

Meet the ITE LL3B300, a purpose-built circuit breaker designed to protect 3-phase, 600V electrical systems with the reliability industrial applications demand. With a 300A rating and 3-pole configuration, this bolt-on device delivers secure, robust protection for feeders and equipment in demanding environments. Whether you're performing maintenance, retrofitting an older panel, or replacing a failed breaker, LL3B300 is engineered to meet your exact spec needs.

Key specifications

• Amperage: 300 A
• Poles: 3-Pole
• Voltage: 600 V
• Mounting: Bolt-On
• Part number: LL3B300

Why this ITE LL3B300 stands out

Unlike generic breakers, the LL3B300 is identified by its exact part number, ensuring compatibility with specific panels and bus configurations. Its bolt-on mounting provides a rigid, vibration-resistant connection that remains dependable under demanding operating conditions. The three-pole, 600V design targets higher-current, three-phase circuits typical in industrial settings, delivering predictable trip characteristics and reliable protection for critical equipment.

Ideal use cases

• Maintenance and replacement in aging or standard 600V panels
• Retrofit projects where exact 3-pole, 300A protection is required
• New installations or panel upgrades that demand a reliable LL3B300-specific solution
• Protection for industrial machinery circuits and feeders in 600V distribution systems

Fit, compatibility, and practical tips

Before ordering, confirm fit and ratings against your panel catalog or equipment data. The part number LL3B300 is the most reliable reference for compatibility, ensuring that mounting, bus connection layout, and trip characteristics align with your installation needs.

Installation and best practices

• Power down and follow proper lockout/tagout procedures before any work.
• Verify that the panel’s mounting pattern and bus configuration match the bolt-on LL3B300 requirements.
• Ensure the system voltage and current demands align with the 600V, 300A ratings.
• Maintain clean connections and use the appropriate tools to secure the mounting hardware to specification.

For technicians and engineers, the ITE LL3B300 offers a precise, reliable solution when replacement or upgrade calls for an exact 3-pole, 300A, 600V bolt-on circuit breaker. Rely on the part number LL3B300 to verify compatibility and keep your electrical distribution protected and compliant.