Square D HGL36150U44XAABCSDYP 150A 3-Pole 600 V Circuit Breaker

Square D HGL36150U44XAABCSDYP is a rugged 150A, 3-pole circuit breaker designed for reliable protection in 3-phase electrical systems operating up to 600 V. Built by Square D, this part-numbered breaker is a dependable choice for commercial and light industrial panels where consistent trip performance and safe disconnection matter most.

Key specifications at a glance

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HGL36150U44XAABCSDYP
• Brand: Square D

What problems this circuit breaker solves

In any three-phase distribution, overloads or short circuits can lead to equipment damage, unexpected outages, and safety risks. This 150 A, 3-pole design provides reliable short-circuit protection and automatic disconnection across all three phases, helping to isolate faults quickly and protect wiring, motors, and downstream devices in your electrical system.

Ideal use cases

• Three-phase motor circuits in manufacturing, pumps, compressors, and HVAC equipment
• Distribution panels in commercial buildings where up to 600 V operation is required
• Any installation requiring a proven 3-pole breaker from a trusted Square D lineage

Why choose this Square D breaker

Unique to this unit is a precise combination of high-current capacity (150 A) with a 600 V maximum voltage, tailored for robust protection in demanding environments. Pairing with Square D panels and components, this breaker supports streamlined maintenance and replacement, reducing downtime when servicing electrical distributions.

Installation and compatibility tips

• Ensure your panelboard accepts Square D HGL-series breakers and that the part number matches your installation requirements.
• Confirm the system voltage and current demands align with 600 V and 150 A ratings to avoid nuisance trips or under-protection.
• Follow standard safety practices for disconnecting power before servicing and consult the panel’s labeling for correct termination procedures.

Ready to secure your three-phase power with trusted protection? Add the Square D HGL36150U44XAABCSDYP to your cart and shield critical equipment from overloads and faults.