Square D HGL36150U43X - 150 A, 3-Pole Circuit Breaker | AmpState

Meet the Square D HGL36150U43X, a 150A, 3-pole molded case circuit breaker designed to shield panelboards and loadcenters from overcurrent and short circuits. Its compact footprint and dependable thermal-magnetic protection make it a solid backbone for residential, commercial, and light industrial electrical systems.

• Space-efficient design: Compact molded-case construction maximizes panel space without compromising protection.
• Thermal-magnetic trip unit: Delivers stable overload protection with fast, reliable short-circuit disconnection for peace of mind.
• Three-pole configuration: Balanced, three-phase protection where required, reducing the risk of uneven load stresses.
• High protection rating: 150 A rating suited for mainline or feeder protection in suitable panelboards.
• OEM-compatible: Engineered to be compatible with matching Square D OEM loadcenters and panelboards for seamless integration.
• Versatile applications: Ideal for residential, commercial, and light industrial environments needing reliable branch circuit protection.

Practical use cases

• Protects branch circuits in new installations or retrofits within panelboards and loadcenters that accept 3-pole molded case breakers.
• Serves as a critical protective link in subpanels for commercial spaces, ensuring rapid interruption during faults.
• Replacement option for older or mismatched breakers in compatible Square D panels, maintaining system safety and performance.
• Works in coordination with other Square D components to deliver predictable, coordinated trips across multiple circuits.

Compatibility and installation at a glance

Designed to integrate with matching OEM loadcenters and panelboards from Square D, the HGL36150U43X fits where a 3-pole molded case breaker is specified. To install, follow standard electrical safety practices, confirm panelboard compatibility, mount securely, and connect conductors per applicable codes and standards.

Technical snapshot

• Manufacturer: Square D
• Part Number: HGL36150U43X
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150 A
• Number of Poles: 3
• Applications: Branch circuit overcurrent and short-circuit protection

Choose the Square D HGL36150U43X for dependable, space-conscious protection that aligns with Square D panel systems, delivering clear, fast trips when faults occur and straightforward, reliable performance in everyday electrical installations.