Square D HGA36070UN 70A 3-Pole 600 V Circuit Breaker

Designed by Square D for dependable, three‑phase protection, the HGA36070UN 70A 3‑Pole 600 V circuit breaker delivers reliable interrupting capability for demanding commercial and light industrial power systems. With a 70‑amp rating and a 600‑volt maximum, it protects wiring and equipment from overloads and short circuits while fitting neatly into compatible Square D panels.

• Current rating: 70 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGA36070UN

Why choose HGA36070UN for your electrical distribution needs? The 3‑pole design provides balanced protection across all phases in three‑phase systems, helping to prevent phase‑to‑phase faults and ensuring consistent performance in distribution panels and motor control centers. This breaker is engineered to integrate with Square D panel boards and enclosures that support HGA‑series devices, offering a straightforward replacement or upgrade path for aging equipment.

Ideal use cases include:

• Three‑phase feeders in commercial electrical rooms and light industrial facilities
• Upgrades or replacements in existing Square D panels where a 70A, 600V protection device is required
• Motor control circuits and power distribution trunks in centralized electrical installations

Key benefits you’ll notice with this breaker:

• Clear, reliable protection for every phase in a 600 V system, reducing the risk of equipment damage
• Consistent trip behavior aligned with standard Square D protective devices, aiding maintenance and troubleshooting
• Compact, standardized form factor designed for seamless integration into compatible enclosures

Installation and safety reminders:

• Always shut off main power and follow proper lockout/tagout procedures before service
• Inspect bus connections for cleanliness and proper alignment prior to seating the breaker
• Verify compatibility with your existing Square D panel or disconnect that accepts HGA‑series breakers