Square D QO150HID 50A 1-Pole 240 V Circuit Breaker Potential Transformer

Engineered for reliability in modern electrical panels, the Square D QO150HID 50A 1-Pole 240 V Circuit Breaker is a robust protection device designed for 240-volt circuits. As part of the trusted Square D QO family, this breaker combines precise overcurrent protection with straightforward installation in compatible load centers. Part Number QO150HID.

What makes this breaker stand out is its 50-amp rating in a compact 1-pole form, making it ideal for high-demand branch circuits, dedicated appliances, or motor loads in residential or light commercial settings. The 240-volt rating ensures it can safely interrupt and protect circuits that operate at higher voltage, while the single-pole design keeps panel layouts tidy and serviceable.

Key use cases

• Protect heavy-load 240V circuits such as large air conditioners, electric water heaters, or air handling equipment in homes or small businesses.
• Integrate into metering or monitoring configurations that use a potential transformer for voltage sensing and energy management.
• Replace aging breakers in Square D QO panels with a proven, compatible replacement that maintains panel integrity.

Why choose the QO150HID?

• Compatibility with Square D QO load centers ensures reliable operation and easy replacements.
• 50 A current rating supports substantial branch circuits without unnecessary nuisance tripping for balanced loads.
• 1-pole, 240 V configuration keeps wiring simple and minimizes space usage in the panel.
• Part Number QO150HID provides a precise match for replacement or upgrade projects focused on metering or transformer-based systems.

Practical tips: Verify your panel accepts QO-series breakers and that a 1-pole 240V device is appropriate for your circuit. When pairing with a potential transformer-based monitoring setup, ensure the breaker sits correctly in the bus and that the load does not exceed the 50 A rating. For installation, follow the panel's manual, align the breaker with the bus, and secure the toggle firmly to ensure proper tripping and engagement.