Square D HLA36070AA 36070A 3-Pole 600 V Circuit Breaker

Square D HLA36070AA 3-Pole 600 V Circuit Breaker delivers reliable, three-phase protection for demanding electrical systems. This OEM Square D part, identified by Part Number HLA36070AA and also cataloged as 36070A, is built to safeguard your panels and equipment in industrial environments where uptime matters.

Core specs at a glance

• Part Number: HLA36070AA
• Alternate catalog reference: 36070A
• Current rating: 36070 A
• Poles: 3
• Voltage rating: 600 V

Why this matters

In three-phase power systems, a 3-pole breaker provides balanced protection across all legs, helping prevent motor damage, insulation wear, and unplanned outages. With a 600 V rating, this breaker is well-suited for a wide range of commercial and light industrial installations where higher-voltage equipment is present. The HLA36070AA is designed to be a compatible, direct-fit replacement in Square D panel systems, ensuring dependable protection without compatibility concerns.

Ideal use cases

• New installations in Square D compatible panels requiring a 3-pole, 600 V protection device
• Replacement for aging HLA36070AA or 36070A units to restore reliable overcurrent protection
• Protection of 3‑phase motors, conveyors, pumps, and other equipment in manufacturing or processing facilities

What makes it stand out

Authenticity and compatibility: As a genuine Square D component, this breaker aligns with your panel’s design and electrical characteristics, ensuring proper fit and predictable performance. The 3-pole configuration delivers coordinated protection across all phases, reducing the risk of uneven load distribution in multi-phase systems.

Durability and reliability: Stocked as an official Square D part, the HLA36070AA helps maintain traceable performance and straightforward maintenance, simplifying replacements and service planning in skilled technician workflows.

Practical tips for installation and maintenance

• Verify panel compatibility: Ensure your enclosure accepts HLA-series breakers and matches the 3-pole, 600 V specification before replacement or installation.
• Maintain readiness: Keep a like-for-like spare to minimize downtime during servicing in high-demand environments.
• Safety first: Disconnect power, test circuits, and follow proper lockout/tagout procedures when installing or replacing breakers.