Square D QDL32070 - 70 A, 240 V, 3-Pole Circuit Breaker | AmpState

The Square D QDL32070 is a 70A, 240V, 3-pole molded-case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to fit seamlessly with Square D systems, it offers a precise, reliable protection solution for a range of electrical applications.

• Compact molded-case design minimizes panel depth and optimizes wiring space, helping you fit protection where it’s needed without compromising accessibility.
• Thermal-magnetic trip unit combines long-term overload protection with instant magnetic response to short circuits, delivering stable, repeatable performance under varying loads and surge conditions.
• OEM-compatible fit engineered to pair with matching Square D OEM load centers and panelboards, ensuring correct trip characteristics and a secure, code-compliant installation.
• Versatile for multiple environments ideal for residential, commercial, and light industrial applications where reliable 70A protection at 240V is required.

Why this matters

In everyday panel operations, you want protection that trips predictably when something goes wrong—without nuisance trips during normal motor startup or temporary surges. The QDL32070’s thermal-magnetic design provides just that: thermal sensing guards against gradual overloads, while magnetic action responds instantly to short circuits. The result is safer equipment, protected wiring, and minimized downtime for motors, feeders, and critical circuits.

Who should consider the QDL32070

• Electrical contractors upgrading or renewing protection in Square D panels
• Facility managers maintaining commercial spaces with 3-pole, 240V circuits
• Industrial technicians protecting small machines or motor loads in light industrial settings

Technical specifications at a glance

• Square D
• Part Number: QDL32070
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 70 A
• Voltage rating: 240 V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical notes for installation and use

• Verify that your panelboard or load center accepts QDL-series molded-case breakers for a proper fit and electrical performance.
• Use in applications where a 70A three-pole protection scheme is required, such as multi-line feeders or three-phase equipment fed from a 240V system.
• Ensure terminal connections are torqued to manufacturer specifications to maintain reliable clamping and stable electrical contacts over time.
• Consider pairing with other Square D protection devices in the same system for consistent trip curves and coordinated protection.

For installers and builders seeking a reliable, space-conscious solution that doesn’t compromise protection, the Square D QDL32070 delivers targeted, durable performance. It’s the practical choice when you need 70A, 240V, 3-pole protection that aligns with Square D panelboards and load centers, backed by a design built to handle residential through light industrial demands.