Square D HJA36070UDYP 70A 3-Pole 600 V Circuit Breaker

Protect three-phase power with precision using the Square D HJA36070UDYP 70 A, 3-Pole, 600 V circuit breaker. Engineered for demanding electrical environments, this unit delivers dependable overcurrent protection for all three phases, helping keep motors, conveyors, pumps, and control circuits safe from faults and short circuits.

Why this 70A 3-Pole breaker stands out

• Three-pole design provides synchronized protection across all phases, reducing the risk of phase imbalances that can damage equipment.
• Supports up to 600 V systems, making it suitable for a wide range of industrial and commercial applications.
• Part number HJA36070UDYP ensures direct compatibility with Square D panels and accessories, simplifying installation and replacement.
• Rugged enclosure and construction tailored for demanding environments where reliability matters most.
• Thermal-magnetic trip mechanism offers fast, predictable responses to overloads and short circuits, helping prevent wiring damage and downtime.

Specs at a glance

• Current rating: 70 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HJA36070UDYP

Ideal applications and use cases

• Industrial panels and distribution boards that power three-phase equipment like motors, pumps, conveyors, and HVAC systems
• Manufacturing lines and processing facilities where reliable phase protection minimizes unplanned downtime
• Electrical control panels in commercial settings that require robust, easy-to-replace overcurrent protection

Installation, care, and practical tips

• Ensure panel compatibility with Square D HJA-series breakers and confirm the unit matches the system voltage and load requirements.
• Follow standard electrical codes and the manufacturer’s installation guidance, including proper wiring practices and secure terminal connections.
• Use correct conductor sizing for 70 A protection and verify the trip mechanism operates correctly after installation.
• Schedule regular inspections for signs of wear, corrosion, or loose connections to maintain reliable protection over time.

Choose the Square D HJA36070UDYP when you need reliable, three-phase protection that aligns with standard Square D panels and delivers consistent performance under demanding industrial conditions. This breaker is the practical, purpose-built solution for safeguarding motors, drives, and 3-phase equipment while helping you maintain uptime and operational safety.