Square D HJA36150AABCSD 36150A 3-Pole 600 V Circuit Breaker

Meet the Square D HJA36150AABCSD 3-Pole 600 V Circuit Breaker—a purpose-built protective device designed for demanding three-phase systems. With a substantial current rating of 36,150 A and a 3-pole configuration, this breaker delivers reliable overcurrent protection in up to 600 V electrical environments, helping to safeguard motors, drives, and other heavy-duty equipment.

Key strengths that set this model apart

• Three-pole protection for synchronized, all-phase tripping — essential for preventing phase imbalances that can damage motors and equipment.
• High current capability tailored for industrial applications, providing robust protection for demanding loads in commercial and manufacturing settings.
• Specifications aligned with heavy-duty panels designed to operate reliably within 600 V distribution systems.
• Distinctive part identity built around the exact part number HJA36150AABCSD, ensuring compatibility with compatible Square D panels and accessories.

This model is ideal for electricians, facilities managers, and panel builders who need dependable protection for three-phase circuits powering motors, pumps, compressors, conveyors, and other heavy equipment. When you’re updating or expanding an electrical panel, adopting a breaker with a clear 3-pole configuration and a defined 600 V rating helps simplify wiring, testing, and future service checks.

Use cases and practical applications

• Protection for three-phase motors in manufacturing lines, HVAC systems, and process equipment operating at or near 600 V.
• Backup protection for critical drives and pumps in industrial facilities where reliable disconnection across all phases is essential.
• Panel upgrades or new installations that require a clearly identified, high-capacity 3-pole breaker with a defined current rating.

How it fits into your overall electrical protection strategy

• Provides consistent trip behavior across all three phases, reducing risk of thermal or electrical stress on connected equipment.
• Works within standard 600 V distribution schemes, enabling straightforward integration into existing systems without overhauling downstream components.
• Part of a trusted Square D lineup, offering compatibility with related interlocks, enclosures, and mounting schemes for clean, compliant installations.

Specifications at a glance

• Brand: Square D
• Part number: HJA36150AABCSD
• Current rating: 36,150 A
• Poles: 3
• Voltage rating: 600 V

When you’re selecting protection for a 3-phase system, this Square D circuit breaker defines reliability with a clear, purpose-driven design. It’s a precise fit for applications that require solid, predictable protection across three legs, at up to 600 V, backed by the trusted Square D legacy.