Square D HLA36150SL 150A 3-Pole 600 V Circuit Breaker

The Square D HLA36150SL 150A 3-Pole 600 V Circuit Breaker delivers robust, three-phase protection for demanding electrical systems. Built for reliability in commercial and light-industrial settings, this part (HLA36150SL) safeguards your equipment from overloads and short circuits while fitting into compatible Square D panels.

• Current rating: 150 A
• Poles: 3 (three-pole design provides synchronized protection across all phases)
• Voltage rating: 600 V
• Part Number: HLA36150SL
• Application: suitable for three-phase circuits in compatible Square D panels

Why this 3-pole design matters

In three-phase systems, protecting every phase is essential to prevent imbalance and equipment damage. The Square D HLA36150SL’s three-pole construction ensures all lines are protected simultaneously, helping to keep motors, drives, and other heavy equipment operating safely and reliably.

Ideal use cases

• Three-phase motor circuits for pumps, conveyors, and compressors
• HVAC feeders and other large cooling or heating equipment
• Power distribution to industrial machinery in manufacturing or processing facilities
• Commercial panels requiring dependable 3-pole protection up to 150 A

Installation and practical guidance

For best results, install the HLA36150SL in a compatible Square D panel designed for three-pole, 600 V protection. Verify system voltage and load requirements align with the 600 V / 150 A ratings, and rely on a licensed electrician to complete installation according to local electrical codes and safety standards.