Square D HGA36070SR 70A 3-Pole 600 V Circuit Breaker

Introducing the Square D HGA36070SR 70A 3-Pole 600 V Circuit Breaker—a purpose-built safeguard for three-phase electrical systems. With a 70 A rating and three poles, this breaker delivers dependable overload protection and fast fault isolation for demanding industrial panels, motor circuits, and distribution feeders.

Key specifications

• Current rating: 70 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36070SR
• Brand: Square D

What it protects and why it matters

• Three-phase electrical circuits common in industrial environments, helping prevent damage from overloads and short circuits
• Motor and line-feed protections in panels and distribution equipment that operate at up to 600 volts
• Critical protection in new installations and as a reliable replacement in existing Square D HGA-series setups

Why choose this breaker

• Trusted Square D reliability for continuous, heavy-duty operation in demanding environments
• Precise, consistent tripping behavior optimized for 3-phase systems, reducing downtime and equipment wear
• Compact 3-pole design that fits standard distribution panels and aligns with common three-phase bus configurations

Ideal use scenarios

• Industrial control panels and motor control centers feeding three-phase machinery
• Distribution feeders in manufacturing floors, processing lines, or assembly plants
• Replacement breaker in existing Square D panels needing 70 A, 3-pole, 600 V protection

Practical guidance

• Verify compatibility with your panel’s allowable breaker type and bus configuration before installation
• Follow proper electrical practices for handling, mounting, and securing connections to ensure reliable operation
• Consult relevant electrical codes and standards to confirm appropriate use in your specific application