Square D QDL22070 - 70 A, 240 V, 2-Pole Circuit Breaker | AmpState

Meet the Square D QDL22070 — a 70 A, 240 V, 2‑pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short‑circuit protection in panelboards and load centers. Built for installers who value reliable protection with space efficiency, this unit pairs Square D’s trusted engineering with a compact footprint that helps maximize panel density without compromising performance.

Why the QDL22070 stands out

• Compact molded case design unlocks efficient use of panel space, letting you fit more circuits into the same enclosure and streamline wiring routes.
• Thermal‑magnetic trip unit delivers stable, repeatable protection under varying loads and inrush conditions, reducing nuisance trips while still clearing faults quickly.
• 2‑pole, 240 V configuration provides robust line‑to‑line protection for typical residential feeders, commercial equipment, and light industrial circuits.
• 70 A continuous rating makes it ideal for mid‑demand branch circuits, such as HVAC feeders, subpanel feeds, or motor loads in smaller facilities.
• OEM‑grade compatibility ensures seamless integration with matching Square D load centers and panelboards for a straightforward, reliable installation experience.

Ideal use cases

• Residential panels needing a compact, dependable 70 A protection device for mid‑size branch circuits.
• Commercial panels that require efficient space usage without sacrificing protection quality for lighting and equipment feeders.
• Light industrial settings where dependable short‑circuit protection and stable tripping behavior are essential for uptime and safety.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: QDL22070
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage rating: 70 A
• Voltage rating: 240 V
• Number of poles: 2
• Application: Branch circuit overcurrent and short‑circuit protection

Practical installation and usage tips

• Verify compatibility with your panelboard’s model and available slots to ensure proper fit and coordinated protection curves.
• When wiring, follow panel labeling and standard electrical practices to maintain clean conductor routing and safe clearance around the device.
• Use as part of a coordinated protection strategy in multi‑circuit panels to balance protection levels and minimize nuisance trips during normal start‑ups.