Square D HDA36125SNYP 125A 3-Pole 600 V Circuit Breaker

The Square D HDA36125SNYP 125A 3-Pole 600 V Circuit Breaker is built to guard your three‑phase power distribution with precise, dependable protection. Designed for industrial and commercial applications, this unit anchors safety and reliability for equipment ranging from motors and conveyors to pumps and panelboards in demanding environments.

• Current rating: 125 A
• Configuration: 3-pole for balanced three-phase protection
• Voltage rating: up to 600 V
• Model lineage: HDA36125SNYP from Square D

Why this 3-pole, 125A breaker makes a difference

• Three-phase protection with synchronized tripping. The 3-pole design ensures all phases shut down together on fault, reducing equipment damage and downtime.
• Optimized for Square D ecosystems. Seamless integration with Square D panels and enclosures that support HDA series breakers, helping you avoid fit and compatibility concerns during installation.
• Robust rating for demanding loads. 125 A capacity handles substantial feeders and motor circuits, delivering reliable interruption at the point of fault.
• Clear, durable performance for industrial use. Built to withstand the rigors of busy electrical rooms and harsh environments while maintaining consistent protection across service cycles.

Ideal use scenarios

• Protecting mid-to-large 3-phase feeders in manufacturing facilities and distribution centers
• Guarding motor control circuits for conveyors, pumps, fans, and HVAC systems
• Supporting reliable protection in panelboards and switchgear designed for 600 V three-phase systems

Practical guidance for deployment

• Verify that your installation is configured for HDA series breakers and compatible panel infrastructure.
• Replace only with the same current rating (125 A) and the same 3-pole, 600 V specification to maintain system protection integrity.
• Label the breaker clearly in your panel schedule to reflect its 125 A, 3‑pole, 600 V role for quick fault diagnosis and maintenance.
• Store and handle in a clean, dry environment to preserve terminal integrity and mechanical performance.

For engineers and technicians prioritizing dependable, three‑phase protection with a trusted brand, the Square D HDA36125SNYP delivers predictable trips, straightforward integration, and robust performance in everyday industrial power distributions.