Square D S312 - 20A, Circuit Breaker

Introducing the Square D S312 - 20A circuit breaker, a purpose-built protection device designed for demanding electrical systems. With a 20-amp rating, it provides dependable overcurrent protection where it matters most—in panelboards, switchboards, control panels, and OEM equipment. Built to support industrial and commercial applications, this breaker helps keep distribution panels and motor control centers operating safely and reliably.

• Precise 20A protection — detects overloads and short circuits and interrupts fault currents to protect wiring and equipment.
• Versatile installation — ideal for panelboards, switchboards, control panels, and OEM assemblies, integrating smoothly into existing electrical architectures.
• Durable in demanding environments — designed to withstand the switching activity and electrical stresses common in busy facilities.
• Clear maintenance path — straightforward trip and reset behavior supports quick diagnostics and reduced downtime.
• Motor control center readiness — provides reliable protection for feeders and control circuits within MCCs, helping safeguard motors and related equipment.

Common use cases include protecting circuits in manufacturing lines, equipment racks, and OEM equipment where consistent, overcurrent protection is essential. The Square D S312 20A circuit breaker delivers targeted protection, helping prevent damage to conductors, transformers, and downstream devices while minimizing unexpected outages. For any distribution panel or motor control setup that requires dependable, straightforward overcurrent protection, this Square D breaker offers a proven solution.