Square D HDA36110SV 110A 3-Pole 600 V Circuit Breaker

The Square D HDA36110SV is a sturdy, high‑capacity three‑pole circuit breaker engineered for demanding three‑phase electrical systems. With a 110 A rating and a 600 V maximum, this part delivers reliable overload and fault protection for industrial panels and equipment, helping keep downtime to a minimum and safety at the forefront.

Specifications at a glance

• Current rating: 110 A
• Poles: 3 (three‑pole) for balanced 3‑phase protection
• Voltage rating: 600 V
• Part number: HDA36110SV
• Brand: Square D

Why this model stands out

• Precise protection for 3‑phase circuits: The 3‑pole design ensures coordinated shutoff across all phases, reducing the risk of unsymmetrical faults.
• Robust construction for industrial environments: Built to withstand the rigors of commercial/industrial electrical rooms and distribution panels.
• Straightforward installation and replacement: Designed to integrate with Square D panels and standard 3‑pole layouts, making updates or replacements simpler for professional electricians.
• Clear identification for maintenance: Part number HDA36110SV is easy to reference in spare part inventories and service records.

Ideal applications

• Protection for three‑phase motors, pumps, and conveyors in manufacturing settings
• Distribution circuits in commercial HVAC, processing lines, and large lighting installations
• Upgrades or replacements in existing Square D electrical panels requiring 110 A, 3‑pole, 600 V protection

Installation and compatibility tips

Before integrating the Square D HDA36110SV, confirm that your panel and bus connections are compatible with 3‑pole, 600 V devices and that the circuit’s 110 A rating aligns with the protected load. Always follow local electrical codes and use a licensed electrician for installation or replacement. Keep the part numbers and catalog references handy for future maintenance and quick reorders.

Maintenance and care

• Regularly inspect for signs of wear, overheating, or arcing under fault conditions.
• Test fault response according to the panel’s maintenance schedule and document results for safety compliance.
• Store spare units in a clean, dry environment to ensure immediate availability when replacements are needed.