Square D HDA36110SP 110A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36110SP—a rugged, reliable solution for protecting 3-phase electrical systems. This 110 A, 3-pole circuit breaker is designed to handle demanding loads in environments up to 600 V, helping prevent damage from overloads and short circuits on Motor feeders, distribution panels, and other heavy equipment.

Key specifications

• Part number: HDA36110SP
• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Brand: Square D

Why this model stands out: The HDA36110SP is purpose-built for 3-phase power systems up to 600 V, delivering dependable protection for critical loads. With a 3-pole design, it ensures coordinated protection across all phases, a crucial advantage for balanced motors and multi-phase feeders in industrial settings.

Ideal use cases

• Protection for 3-phase motors and feeders in manufacturing, warehousing, and processing facilities
• Replacement or upgrade in distribution panels requiring 110 A, 3-pole, 600 V protection
• Installations where Square D compatibility and proven performance matter

Practical guidance

• Confirm the HDA36110SP part number matches your existing panel or enclosure to ensure proper fit and mounting
• Ensure conductor sizing and termination methods align with a 110 A, 600 V circuit
• Engage a licensed electrician for installation and testing to guarantee safe operation