Square D HDL36070 - 70 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D HDL36070—a 70 A, 600 V, 3-pole molded case circuit breaker built to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Designed for real-world electrical setups, this unit keeps critical circuits safe in residential, commercial, and light industrial environments.

Why this breaker stands out

• Efficient panel utilization: Its compact molded-case design maximizes space inside the panel, giving you room for additional circuits without sacrificing protection.
• Reliable protection you can count on: The thermal-magnetic trip unit provides stable, repeatable performance, responding to overloads with the precision of a modern protection scheme and delivering fast short-circuit interruption when immediate action is required.
• OEM-compatible performance: Engineered to pair with matching Square D OEM load centers and panelboards, ensuring a seamless, dependable fit and consistent electrical behavior.
• Versatile three-phase protection: With three poles and a 600 V rating, it’s suitable for a wide range of three-phase circuits common in commercial and light-industrial applications.

Ideal use scenarios

• Three-phase feeders for small commercial lighting, HVAC equipment, and power distribution within panelboards up to 600 V
• Residential and light-commercial installations requiring robust overload and short-circuit protection in a compact footprint
• As a reliable replacement or upgrade within Square D-compatible load centers and panelboards

Technical snapshot

• Manufacturer: Square D
• Part Number: HDL36070
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 70 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical considerations for installation and longevity

• Verify panel compatibility with the HDL36070 to ensure optimal trip characteristics and mounting alignment
• Confirm the circuit load does not exceed the 70 A rating to maintain protection reliability and avoid nuisance trips
• Store and handle the breaker in accordance with Square D installation guidelines to preserve the integrity of the molded case and trip unit

Choose the HDL36070 for a proven, space-efficient, three-pole protection solution that aligns with Square D’s OEM panels and delivers dependable performance in a variety of electrical environments. This is the durable, ready-to-install option you need when building or upgrading panelboards and load centers where reliable overcurrent protection matters.