Square D SDT220 - 20A, 240VAC, 2-Pole, Circuit Breaker

The Square D SDT220 is a dependable two-pole circuit breaker engineered for demanding electrical systems. With a 20A rating and a 240V maximum, this device delivers reliable overcurrent protection where it matters most—without sacrificing safety or performance in your distribution networks.

Key specifications

• Current rating: 20A
• Voltage rating: up to 240VAC
• Poles: 2-Pole
• Breaker type: Circuit Breaker

Designed to integrate seamlessly into panelboards, switchboards, and control panels, the SDT220 is a versatile choice for a wide range of installations. Its 2-pole configuration enables coordinated protection across both hot legs in 240V circuits, helping to safeguard wiring, components, and motors from overcurrents and faults.

Why this model stands out

When reliability and quick fault isolation are non-negotiable, the Square D SDT220 delivers. Its straightforward design focuses on consistent performance in environments where uninterrupted operation matters—industrial facilities, commercial buildings, and OEM setups alike. By providing robust overcurrent protection, it minimizes the risk of damage during short circuits or overloads and supports safer, more efficient power distribution in your electrical infrastructure.

Ideal applications

• Industrial distribution panels and motor control centers
• Commercial electrical switchboards and panelboards
• OEM equipment enclosures requiring dependable 240VAC protection

Practical considerations and tips

Use the SDT220 when you need a reliable 20A, 240VAC two-pole breaker that fits standard panel and switchgear configurations. Pair with compatible protective devices and enclosures in systems where rapid isolation of fault currents is critical for safety and uptime. Regular inspection of connection integrity and clear labeling in control panels will help maintain optimal protection and ease future servicing.