Square D QOU2000 100A 2-Pole 240 V Circuit Breaker Potential Transformer

Meet the Square D QOU2000 — a purpose-built circuit breaker engineered for demanding electrical distributions. This 100 A, 2-pole unit delivers reliable protection for 240 V circuits while offering potential transformer compatibility to support metering and control applications in commercial and industrial environments.

• Current rating: 100 A — designed to handle standard branch and feeder loads with dependable protection.
• Poles and voltage: 2-pole, 240 V — suitable for two-hot-leg 240 V circuits and common industrial distribution setups.
• Part number: QOU2000 — a genuine Square D component built to the brand’s exacting specifications and interchangeability within compatible panels.
• Potential transformer compatibility: specifically referenced as a circuit breaker with potential transformer functionality, enabling seamless interfacing with metering and control relays for monitoring and protection schemes.

Why this model stands out

In environments where both electrical protection and measurement integration matter, the QOU2000 offers a focused, purpose-driven solution. It combines robust overcurrent protection with the ability to support metering-related circuits, reducing the need for additional adapters and simplifying panel design. This makes it a practical choice for facilities aiming to improve energy visibility without sacrificing reliability.

Ideal use cases

• Commercial electrical distribution networks requiring solid 100 A protection on 240 V circuits with metering interfaces.
• Industrial panels where energy management and protection must co-exist in a compact, two-pole package.
• retrofit projects needing a genuine Square D breaker with potential transformer compatibility to align with existing metering and relay systems.

Practical guidance for deployment

• Verify that your panel supports the QOU2000 form factor and has compatible bus connections for a two-pole, 240 V device.
• Match the protection rating (100 A) to your circuit load calculations to prevent nuisance trips while maintaining safety margins.
• Use in conjunction with your energy monitoring setup to leverage potential transformer interfaces for accurate voltage and current measurements.
• Follow local electrical codes and manufacturer installation guidelines to ensure safe commissioning and servicing.

For projects requiring a trusted Square D component with built-in measurement compatibility, the QOU2000 100 A 2-Pole 240 V circuit breaker delivers precise protection and streamlined metering integration in a single, reliable package.