Square D HDA36110USYP 110A 3-Pole 600 V Circuit Breaker

Introducing the Square D HDA36110USYP, a purpose-built circuit breaker designed for demanding three-phase electrical systems. With a 110 A current rating, this 3-pole device delivers reliable overcurrent protection for large motors, compressors, pumps, and other industrial loads at up to 600 V.

Part number HDA36110USYP identifies this specific Square D component, ensuring you’re selecting an authentic, compatible protector for your panel or switchgear. The 3-pole design protects all three phases with a single trip action, helping maintain system balance and reduce the risk of phase-to-phase faults.

Key specifications:

• Current rating: 110 A
• Poles: 3
• Voltage rating: 600 V
• Brand: Square D
• Part number: HDA36110USYP

Why choose this model

Authentic Square D protection with a robust, field-proven design. This breaker is built to withstand regular cycling in busy electrical rooms and service panels, delivering predictable trip behavior when faults occur. By protecting all three phases in one device, it simplifies installation and maintenance while helping you meet safety and code requirements for 3-phase circuits.

Ideal use cases

• Protection for three-phase motors in manufacturing lines, processing equipment, and HVAC systems
• Main or feeder protection in commercial and light-industrial panels
• Short-circuit and overload protection for energy-intensive machinery and pumps

Practical considerations and setup tips

• Confirm panel compatibility with the Square D HDA36110USYP and ensure correct mounting style for your enclosure
• Verify the circuit load and motor starting characteristics align with the 110 A protection level
• Keep a compatible spare on hand for fast replacement and minimal downtime

When you need dependable, straightforward three-phase protection at 600 V, the Square D HDA36110USYP 110 A 3-Pole circuit breaker delivers a smart balance of protection, compatibility, and long-term reliability. Add it to your order to simplify panel maintenance and help keep your operation safe and compliant.