Square D HJA36020AA 36020A 3-Pole 600 V Circuit Breaker

Square D HJA36020AA 36020A 3-Pole 600 V Circuit Breaker delivers dependable protection for three-phase electrical systems in demanding commercial and industrial environments. Identified by Part Number HJA36020AA, this breaker is built to safely interrupt power on overloads and short circuits in applications up to 600 volts.

Key specifications

• Current rating: 36020 A
• Poles: 3
• Voltage rating: 600 V
• Part Number: HJA36020AA
• Brand: Square D

Why this Square D breaker stands out

• Three-pole design tailored for balanced protection across all phases in 3‑phase circuits, reducing the risk of uneven loading.
• Strong compatibility with Square D panels and enclosures, simplifying upgrades, replacements, and service workflows.
• Robust, durable construction designed to perform reliably in busy electrical environments where uptime matters.
• Clear labeling and standardized connections streamline installation and future maintenance.
• Provides essential overcurrent protection for equipment and wiring, helping prevent damage and outages in 600 V systems.

Ideal use scenarios

• Upgrading or retrofitting commercial or industrial panels that operate on 3-phase 600 V power.
• New installations requiring a compliant, reliable 3-pole 600 V circuit breaker.
• Service disconnects in industrial settings where compact, dependable protection is essential.

Installation and compatibility notes

Verify that your panel accepts HJA-series breakers and that all components—bus, enclosure, and wiring—are rated for 600 V. For safety and reliability, follow manufacturer guidelines and local electrical codes, and have a licensed electrician perform the installation.

Choose the Square D HJA36020AA for proven, industry-standard protection in 3-phase 600 V systems. With its clear specifications and seamless ecosystem alignment, it’s a dependable choice for maintaining uninterrupted power and safeguarding critical loads.