Square D FHF36070 70A 3-Pole 600 V Circuit Breaker

Meet the Square D FHF36070—a dependable 70 A, 3-pole circuit breaker designed to protect 3-phase electrical systems rated up to 600 V. With part number FHF36070, this device is built for demanding industrial and commercial environments where reliable interruption of overloads and short circuits is essential.

Key specifications at a glance

• Current rating: 70 A
• Poles: 3
• Voltage rating: 600 V
• Part number: FHF36070

Ideal applications

• Three-phase motor circuits for pumps, conveyors, and fans in industrial facilities
• HVAC equipment and refrigeration systems that operate on or near 600 V class distributions
• Panelboards and distribution panels that require a 3-pole, 600 V protection device

Why this Square D breaker stands out

• Trusted brand heritage—Square D breakers are designed to deliver consistent protection for critical electrical loads.
• 3-pole design simplifies wiring and improves protection for balanced 3-phase systems.
• 600 V rating expands compatibility with a wide range of commercial and light industrial installations.
• Clear, straightforward protection for feeders and equipment up to 70 A, helping prevent damage from overloads and short circuits.

Practical guidance for use

• Ensure your panel accepts 3-pole, 600 V devices of this rating and that mounting aligns with standard Square D configurations.
• When upgrading or replacing, match the 70 A rating to the load’s full-load amps with an appropriate safety margin to minimize nuisance trips during startup.
• Document the part number (FHF36070) in your electrical distribution plan to maintain consistent protection across the system.

Whether you’re upgrading an aging installation or configuring a new 3-phase panel, the Square D FHF36070 provides reliable, recognized protection for your 3-phase circuits at up to 600 V. It’s a practical, standards-aligned choice for safeguarding motors, drives, and other essential equipment in demanding environments.