Square D HGL36150U44XAABCSJYP 150A 3-Pole 600 V Circuit Breaker Potential Transformer

Discover dependable protection for demanding 3‑phase power systems with the Square D HGL36150U44XAABCSJYP. This 150 A, 3‑pole, 600 V circuit breaker is engineered to safeguard critical feeders and equipment while fitting seamlessly into Square D’s trusted protection ecosystem. With its built-in potential transformer capability, it supports precise monitoring and protection relay interfacing for modern electrical infrastructures.

Key specifications

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGL36150U44XAABCSJYP

Unique value and what sets it apart

• 3‑pole design ensures balanced interruption across all phases, reducing the risk of phase imbalances damaging downstream equipment.
• Potential Transformer compatibility: Designed to integrate with metering and protection schemes that rely on potential transformer interfaces, enabling accurate monitoring and relaying without adding complexity to your panel.
• Industrial‑grade reliability: Built to support continuous operation in demanding distribution environments, helping to minimize unplanned downtime in power systems.
• Compact Square D architecture: Keeps panel layouts efficient while delivering proven protection performance within 600 V distribution networks.

Ideal use cases

• Feeder protection in 3‑phase 600 V distribution panels for manufacturing lines, warehouses, and processing facilities.
• Motor control center (MCC) protection where reliable interruption of all phases is required to prevent motor damage and electrical faults.
• Upgrading aging or obsolete breakers in commercial or industrial facilities to meet current protection standards while maintaining compatibility with Square D panels and accessories.
• Systems requiring integrated monitoring through a potential transformer interface for remote diagnostics and protection relays.

How it works and why it matters

In normal operation, the HGL36150U44XAABCSJYP continuously monitors current on all three phases. If a fault or overload occurs, the breaker interrupts the circuit to prevent equipment damage, fire risk, and extended outages. The potential transformer capability supports accurate voltage and current measurement feeds to protection relays or energy management systems, enabling proactive maintenance and smarter energy management.

Installation and practical tips

• Ensure compatibility with your Square D distribution panel and mounting scheme for a secure fit and reliable operation.
• Verify the system is de‑energized and follow all electrical safety protocols during installation or replacement.
• Utilize the potential transformer interfaces to enable enhanced monitoring, fault analysis, and integration with your building management or protection relay systems.
• Keep the part number (HGL36150U44XAABCSJYP) handy for precise reordering and to ensure you match the exact specifications required for your installation.

Investing in the Square D HGL36150U44XAABCSJYP means aligning with a trusted protection solution that delivers targeted three‑phase safety for 150 A circuits at up to 600 V, while offering seamless potential transformer compatibility for modern monitoring and control workflows. Perfect for professionals upgrading or expanding industrial power distribution without compromising on protection or compatibility.