Square D QO220EM 20A 2-Pole 240 V Circuit Breaker Potential Transformer

Meet the Square D QO220EM 20A 2-Pole 240V Circuit Breaker, a precise, reliable safeguard for your 240-volt branch circuits. With a 20-amp rating and a true two-pole design, this part ensures both hot legs disconnect together during an overcurrent event, promoting safer operation and easier panel maintenance. Part Number QO220EM, this breaker is built to integrate seamlessly into Square D QO style panels for quick, drop-in replacement and consistent performance.

Key features that matter

• Current rating: 20 A
• Pole configuration: 2-pole breaker for simultaneous disconnection of both live conductors
• Voltage rating: 240 V, suitable for common 240V circuits
• Compatibility: QO family design, optimized for Square D panels and reliable plug-in operation
• Part specificity: Exact replacement with Part Number QO220EM ensures proper fit and electrical characteristics

Real-world applications

This 20A, 2-pole 240V circuit breaker is ideal for protecting higher-power residential or light commercial circuits. Use cases include

• Air conditioning condensers and heat pumps
• Electric water heaters and certain space heating circuits
• 240V receptacle circuits for large appliances and specialty equipment
• HVAC control and other equipment where reliable, dual-leg protection is essential

Why choose the QO220EM

• Exact fit for Square D panels: Designed to work with QO-series panels, ensuring a consistent magnetic trip response and straightforward installation
• Clear protection for dual-leg circuits: By tripping both poles together, it prevents hazardous imbalances and reduces wiring stress
• Durable, code-aligned safeguarding: Built to respond quickly to overcurrent conditions, helping prevent electrical fires and equipment damage on 240V systems

Practical installation tips

• Verify panel compatibility with QO220EM before installing; use in appropriate QO-type panels
• Only perform wiring with the main power safely de-energized and by following all local electrical codes
• Consider labeling the circuit clearly after replacement to make future servicing straightforward

Choose the Square D QO220EM 20A 2-Pole 240V Circuit Breaker for dependable, two-line protection on 240V circuits, with a precise fit that minimizes downtime and ensures reliable electrical performance.