Square D | HJL36070SA | Circuit Breaker | 70A | 3-Pole | 600V

Meet the Square D HJL36070SA—a purpose-built 70-amp, 3-pole circuit breaker designed for demanding 600-volt power distributions. This unit is built for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring reliable protection without the guesswork.

Why this breaker stands out in real-world applications: it delivers precise overcurrent protection for three-phase systems, safeguarding motors, feeders, and equipment from overloads and faults. With a 70A rating and 600V compatibility, it’s tailored for industrial and commercial environments where downtime is costly and reliability is non-negotiable.

• Amperage: 70A
• Poles: 3-Pole
• Voltage: 600V
• Reference: Part number HJL36070SA is the best compatibility reference

This breaker is ideal for upgrading or replacing aging protective devices in three-phase panels, retrofitting legacy systems to current standards, or stocking spare parts for ongoing maintenance programs. If your panel or equipment operates on 600V three-phase power, this Square D unit offers dependable protection that aligns with established Square D design and mounting conventions, reducing the risk of compatibility issues during installation.

How it compares to alternatives, in practical terms: while many breakers claim broad compatibility, this model is specifically matched to Square D panel architectures and its HJL36070SA designation is the most reliable indicator of fit and ratings. Before ordering, verify that the panel’s specifications and bus configurations align with a 3-pole, 600V, 70A protective device to ensure seamless replacement.

Practical tips to get the most from your installation:

• Always confirm fit and ratings before purchasing—use the part number HJL36070SA as your compatibility reference.
• Shut off power and follow all safety procedures when servicing or replacing breakers in live panels.
• Consult your panel manufacturer guidelines to ensure mounting, wiring, and enclosure clearances meet local electrical codes.
• Keep this unit in stock as a dedicated replacement part for maintenance calendars and retrofits to minimize sit‑idle downtime.