Square D HDA36150U43XAABCSD 150A 3-Pole 600 V Circuit Breaker

Powerful, reliable protection for three‑phase systems—the Square D HDA36150U43XAABCSD 150A 3‑Pole 600V Circuit Breaker is designed to safeguard your electrical loads with precision. This 3‑pole device from Square D handles up to 150 A and is rated for up to 600 V, making it a robust choice for mid‑ to large‑size three‑phase circuits in commercial and industrial environments.

Why this 3‑pole, 600 V breaker stands out

• Three‑pole configuration provides balanced protection across all phases in 3‑phase power systems, reducing the risk of uneven loading and potential equipment damage.
• High current capacity supports circuit protection for demanding loads while helping to keep panel space efficient by consolidating three conductors into one device.
• Clear, reliable trip action interrupts fault or overload conditions to protect feeders, motors, and downstream equipment, helping minimize downtime and repair costs.
• Part number specificity HDA36150U43XAABCSD ensures precise compatibility with Square D panels and the broader HDA family, facilitating smoother replacements and upgrades.

Ideal applications and use cases

• Industrial control panels and distribution boards that rely on 3‑phase power up to 600 V.
• Large commercial installations with three‑phase motors, pumps, conveyors, or HVAC equipment that require dependable protection at 150 A.
• Upgrading or replacing aging protection devices in existing Square D systems to maintain code compliance and system reliability.

Practical considerations when purchasing

• Verify compatibility with your specific Square D panel model and mounting style to ensure a proper fit and mounting integrity.
• Confirm that the protection level (current rating, voltage rating) aligns with your circuit design and safety requirements.
• Plan for routine electrical maintenance, including periodic inspection of breakers and surrounding panel enclosure to prevent nuisance trips from environmental factors.

Specifications at a glance

• Part number: HDA36150U43XAABCSD
• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Type: Circuit Breaker (3‑pole, three‑phase protection)
• Brand: Square D

For dependable protection in 3‑phase, 600 V electrical systems, the Square D HDA36150U43XAABCSD 150A 3‑Pole 600V Circuit Breaker delivers precise trip performance and robust compatibility with Square D installations. It’s a smart, purpose‑built choice for safeguarding motors, feeders, and critical equipment in demanding environments.