Square D HDA36110SPYP 110A 3-Pole 600 V Circuit Breaker

Engineered by Square D, the HDA36110SPYP 110A 3-Pole 600 V circuit breaker is built to safeguard large three-phase feeder circuits in demanding industrial and commercial electrical systems. With a precise 110 A current rating, a three-pole design, and a 600 V maximum voltage rating, this breaker delivers reliable protection where it matters most.

• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Part Number: HDA36110SPYP

Why this matters: The three-pole configuration ensures coordinated shutdown across all phases, reducing the risk of arc faults and equipment damage in balanced three-phase systems. The 600 V rating accommodates higher-voltage distributions commonly found in industrial environments, while the 110 A capacity protects feeders feeding motors, transformers, and heavy loads without frequent nuisance trips.

Ideal use cases:

• Three-phase power distribution for manufacturing lines and industrial equipment
• Feeder protection in commercial electrical rooms and large panels
• Replacement or upgrade in compatible Square D enclosures that accept HDA-series breakers

What makes it stand out:

• Direct fit for Square D panels designed to accommodate HDA-type breakers, offering a seamless replacement or upgrade path
• Consolidated protection for multi-phase circuits, helping to maintain uptime and reduce unplanned downtime due to electrical faults
• Simplified maintenance with a clearly identifiable part number (HDA36110SPYP) for ordering and inventory management

Installation and care tips:

• Verify panel compatibility with HDA-series breakers before installation
• Follow all manufacturer installation guidelines and applicable electrical codes
• Inspect for signs of wear or overheating during routine maintenance and replace when necessary
• Ensure secure mounting and proper electrical connections to prevent loose-terminals and arcing

Whether you're safeguarding high-amp feeders in a busy production line or upgrading an electrical distribution panel, the Square D HDA36110SPYP 110A 3-Pole 600 V Circuit Breaker delivers focused, dependable protection with a clear path to reliable, long-term performance.