Square D A1370 - 70A, 3-Pole, Circuit Breaker

Meet the Square D A1370 — a dependable 70A, 3-Pole circuit breaker designed to protect three‑phase systems with precision. Built for industrial, commercial, and OEM environments, this device anchors safe operation in distribution panels, switchboards, and motor control centers, delivering reliable overcurrent protection when it matters most.

• Three-pole protection provides synchronized disconnection across all phases, reducing fault exposure and improving safety in 3‑phase circuits.
• 70 A current rating targets mid-to-high load applications, making it a solid choice for feeders and motor-driven equipment without overstressing downstream conductors.
• Versatile applications designed for panelboards, switchboards, and control panels—ideal for layout flexibility in new builds or system upgrades.
• Industrial-grade reliability delivers consistent overcurrent protection, supporting continuous operation in demanding environments and helping prevent costly downtime.
• Seamless integration aligns with Square D infrastructure, enabling straightforward installation and cohesive performance within existing electrical ecosystems.

Ideal use cases

Employ the A1370 in distribution panels and motor control centers where robust three-phase protection is essential. It’s well suited for lighting and power distribution in manufacturing floors, HVAC and process equipment feeds, conveyors, pumps, and other three-phase machinery common in industrial and commercial settings. OEM equipment makers can rely on the A1370 to deliver dependable protection wherever a 3‑pole, 70A breaker is required.

Why choose the A1370 for your panel systems

Choosing a 3‑Pole breaker like the A1370 means you’re prioritizing coordinated trip capability, straightforward maintenance, and compatibility with established Square D panel designs. This results in faster commissioning, safer shutdowns during faults, and lower risk of partial phase failures that can damage equipment. When your panelboards, switchboards, or control panels demand reliable three‑phase protection, the A1370 delivers a precise, purpose-built solution.

• Current rating: 70A
• Poles: 3‑Pole
• Breaker type: Circuit Breaker