Square D HLA36150SR 150A 3-Pole 600 V Circuit Breaker

Introducing the Square D HLA36150SR 150A 3-Pole 600V Circuit Breaker — a rugged, reliable protection device engineered for demanding 3‑phase electrical systems. With a 150 ampere current rating, three poles for synchronized phase disconnection, and a 600-volt maximum voltage, this breaker is designed to safeguard equipment, wiring, and personnel in industrial and commercial installations.

Key benefits

• Robust 3‑pole protection — ensures simultaneous interruption of all three phases, reducing arc risk and protecting downstream equipment from unbalanced faults.
• High‑energy readiness — built to handle the demands of 3‑phase circuits in industrial environments, helping prevent nuisance trips in heavy-load applications.
• Clear part identification — part number HLA36150SR simplifies ordering, maintenance, and stock management, minimizing downtime during replacements.
• Space‑efficient protection — compact design suits control panels, switchgear, and distribution boards where reliable 150A protection is required without excessive footprint.
• Consistent performance — engineered for dependable overcurrent protection, contributing to safer, more predictable electrical system operation.

Ideal applications

• 3‑phase motor circuits in manufacturing lines and industrial facilities.
• Power feeders for commercial equipment and machinery operating on 600V systems.
• Panelboard and switchgear sections requiring reliable 150A, 3‑pole protection for safety and uptime.

Why this matters for your system

In a 3‑phase setup, a single overload or fault can cascade across phases. The HLA36150SR’s three‑pole design ensures all phases trip together, guarding motors, drives, and controls from damaging overcurrent conditions. Using this specific 150A, 3‑pole, 600V breaker helps you maintain consistent protection standards across your electrical infrastructure, reduce downtime, and simplify maintenance with a clearly identifiable part number.

Specifications

• Current rating: 150 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HLA36150SR
• Brand: Square D

Installation and compatibility tips

Install this circuit breaker in properly rated enclosures designed for 3‑phase service. Confirm compatibility with your panel or switchgear’s bus configuration and rating, and follow applicable electrical codes during replacement or initial installation. For reliable performance, handle the unit with standard safety practices and ensure the rating matches your downstream load and wire sizes.