Eaton | HLD3300Y | Circuit Breaker | 300A | 3-Pole | 600V

Eaton HLD3300Y Circuit Breaker is a rugged, industrial-grade 300A, 3-Pole, 600V device designed for maintenance, retrofit, and replacement in demanding electrical systems. When you need to preserve system protection while updating panels or upgrading legacy equipment, this breaker provides a precise, like-for-like fit that aligns with Eaton's engineering standards.

Core specifications at a glance:

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 600V
• Part reference: HLD3300Y — the best reference for compatibility

Why this matters in real-world service:

• Maintenance and retrofit projects often require a precise old-to-new match. HLD3300Y is intended to align with systems that demand 300A protection on a 3-phase, 600V network, reducing the risk of mismatch or downtime.
• Compatibility is clarified by the part number; always confirm fit and ratings before ordering to ensure seamless integration into your panel or switchgear.
• Ideal for replacement scenarios where continuity of protection is critical, such as mid-life upgrades or capacity expansion in industrial environments.

Use cases include panel refurbishments, equipment upgrades, and service life extensions in manufacturing facilities, data centers with 600V distribution, and large commercial or industrial sites that require reliable 3-phase protection.

Getting the right fit matters. Rely on the HLD3300Y designation to verify compatibility with your Eaton portfolio and legacy installations, and ensure you’re aligned with the exact 600V, 300A, 3-Pole configuration your system demands.