Square D HDA36070UA 70A 3-Pole 600 V Circuit Breaker

Square D HDA36070UA is a rugged 70 A, 3-pole, 600 V circuit breaker designed to protect three-phase electrical systems in demanding industrial environments. With the part number HDA36070UA, this device delivers reliable interruption and protection for critical motor feeders, power distribution panels, and heavy-duty circuits.

What it protects and how it helps:

• Three-pole protection ensures all three phases are quickly and reliably isolated during a fault, maintaining system balance and preventing collateral damage to equipment.
• 70 A current rating provides precise overcurrent protection for demanding loads, reducing nuisance trips while safeguarding motors, drives, and feeders.
• 600 V maximum system voltage makes it suitable for common industrial power distribution setups, enabling safe operation across a range of three-phase applications.
• Designed for integration into standard electrical panels and enclosures that support 3-pole protective devices, supporting straightforward installation and serviceability.

Ideal applications include motor control circuits, manufacturing line feeders, HVAC and process equipment, and any facility-wide distribution panel where reliable three-phase protection is essential. This breaker helps facility managers and electrical contractors ensure quick fault isolation, minimize equipment wear, and maintain uptime in challenging industrial environments.

Why choose the HDA36070UA? It offers purpose-built three-phase protection with a precise 70 A rating in a compact, robust package, purposefully designed to handle the demands of modern industrial power systems. By selecting this Square D breaker, you’re prioritizing consistent performance, easier maintenance, and longer equipment life for your critical electrical infrastructure.

Specifications at a glance: Current rating 70 A • Poles: 3 • Voltage rating: 600 V • Part Number: HDA36070UA • Brand: Square D

Maintenance and installation tips: Ensure proper torque on terminals, confirm correct alignment within compatible panels, and perform periodic inspections for signs of wear or overheating. Replace the device if any damage is observed to maintain optimal protection for your three-phase circuits.