Square D HLA36150UJ 150A 3-Pole 600 V Circuit Breaker

Designed for dependable three‑phase protection, the Square D HLA36150UJ 150A 3‑Pole 600 V Circuit Breaker delivers precise overcurrent protection where it matters most. With a 150 amp rating across three poles and a 600 V maximum, it’s built to safeguard heavy loads and keep commercial or light industrial power distribution running smoothly.

• Three-pole design provides true 3‑phase protection with coordinated tripping, helping prevent phase imbalance and equipment damage.
• 150 A current rating supports substantial feeders and motor circuits without nuisance trips on normal startup transients.
• 600 V voltage rating accommodates common industrial and commercial three‑phase systems, giving you flexible installation options.
• Part number clarity HLA36150UJ simplifies sourcing and replacement in compatible Square D panels and distribution setups.
• Compact, integration-friendly design aligns with standard mounting footprints for straightforward installation and maintenance.

Use cases and practical applications

Ideal for protecting main feeders and three‑phase circuits in commercial buildings, light industrial facilities, and service panels. It’s well suited for motor circuits, refrigeration and HVAC compressors, conveyors, and other equipment that operates on a 3‑phase power supply. By interrupting fault currents quickly and reliably, it helps minimize heat build‑up, equipment wear, and downtime.

Why this breaker stands out

• Specificity to 3‑phase systems: The 3‑pole configuration ensures synchronized disconnection, maintaining balanced protection across all phases.
• Clear compatibility cues: The HLA36150UJ designation signals a precise match for targeted installations and straightforward replacement in appropriate Square D setups.
• Durable protection for demanding environments: Built to handle the demands of commercial and light industrial power distribution while maintaining reliability over time.

Technical snapshot

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HLA36150UJ

For practitioners and facilities managers seeking solid, purpose-built three‑phase protection, the Square D HLA36150UJ 150A 3‑Pole 600 V Circuit Breaker delivers reliable performance, easy sourcing, and clear alignment with standard electrical distribution practices.