Square D HLA36040AABCSH 36040A 3-Pole 600 V Circuit Breaker Potential Transformer

Meet the Square D HLA36040AABCSH 3-Pole 600 V Circuit Breaker Potential Transformer — a purpose-built protection and measurement module crafted for demanding electrical systems. With Part Number HLA36040AABCSH, this device combines robust overload protection with integrated sensing to simplify panel wiring and enable real-time monitoring.

• Three-pole design for three-phase protection: optimized for 3-phase systems, ensuring balanced fault isolation across all phases.
• 600 V voltage rating: ideal for industrial power distribution and commercial facilities requiring reliable protection at higher voltages.
• Current rating: 36040 A: high-capacity protection for feeders and critical loads in demanding applications.
• Integrated potential transformer: provides accurate voltage and current sensing for remote monitoring, metering, and protection relays without the need for extra transformers.
• Square D reliability: backed by Schneider Electric, designed for seamless compatibility with Square D enclosures and protection-relay ecosystems.

This combination of breaker and integrated sensing makes it an excellent choice for industrial control panels, large commercial installations, and data centers where protection and measurement go hand in hand. By integrating the potential transformer, you reduce wiring complexity and gain direct access to monitoring data that enhances protection response times, fault diagnostics, and energy management.

• Ideal use cases:
  • Protect distribution feeders in three-phase power systems while feeding voltage/current data to centralized monitoring or SCADA systems.
  • Upgrade legacy panels by adding integrated sensing for modern protection relays and energy management software.
  • Fit into compact panels where both circuit protection and sensing are required in a single, reliable unit.

Practical tips for installation and optimization: ensure compatibility with your Square D enclosure and bus arrangement, verify transformer ratios for accurate relay inputs, and follow standard safety procedures during replacement or installation. With the HLA36040AABCSH, you get a precise, high-capacity protection-and-monitoring solution that helps keep critical systems safe and continuously observable.