Square D QOB230VH1021 30A 2-Pole 230 V Circuit Breaker Potential Transformer

Discover dependable power protection with the Square D QOB230VH1021 30A 2-Pole 230 V Circuit Breaker Potential Transformer. This robust device pairs precise overcurrent protection for 240V circuits with integrated sensing capabilities, giving you a streamlined solution for modern panels that demand both reliability and monitorable performance. Designed for use in compatible Square D installations, it helps safeguard essential equipment while supporting voltage monitoring and fault-detection workflows.

Key specifications that matter

• Current rating: 30 A
• Poles: 2-pole
• Voltage rating: 230 V
• Part number: QOB230VH1021
• Product type: Circuit breaker with potential transformer capability

Why this breaker stands out

What sets the QOB230VH1021 apart is its combination of solid overcurrent protection and voltage sensing compatibility. The two-pole design ensures both hot legs disconnect together on a fault, reducing the risk of arcing and improving protection for 240V circuits such as HVAC, water heating, or electric appliances. The integrated potential transformer capability enables voltage sensing that can feed energy monitoring equipment or protective relays, helping you track performance, diagnose issues quickly, and support smarter energy management without adding extra components.

Use cases and ideal applications

• Residential and light commercial 240V circuits requiring reliable 30 A protection
• HVAC systems, electric dryers, water heaters, and other 240V loads where monitoring voltage is beneficial
• Panels that benefit from built-in sensing to interface with energy management or protection-relay systems
• Situations where streamlined replacement with a compatible Square D breaker minimizes downtime and maintains panel integrity

What problems it solves

• Prevents overloads on 240V circuits, reducing the risk of equipment damage and electrical fires
• Provides voltage sensing to support monitoring and diagnostics, helping you catch anomalies early
• Fits neatly into compatible Square D panels, simplifying upgrades or replacements without complicated rewiring

Compatibility and installation tips

• Verify that your panel accepts QOB series breakers for a proper fit and safe operation
• Replace like-for-like with the QOB230VH1021 to maintain circuit protection levels and compatibility
• Follow standard electrical safety practices and local codes; if in doubt, consult a licensed electrician
• Ensure correct torque on terminal connections and inspect for any signs of wear or damage during installation

Value you can rely on

Choosing the Square D QOB230VH1021 means opting for a trusted name in electrical protection with a thoughtful design that supports modern monitoring needs. Its 30 A rating is a practical choice for a range of 240V circuits, while the potential transformer capability opens doors to improved visibility and proactive maintenance in your electrical system. For installers and facility managers aiming for reliability, measurable protection, and easier integration with monitoring setups, this breaker offers a compelling combination of performance and practicality.