Square D HDA36090SNYP 90A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36090SNYP — a 90 A, 3-pole circuit breaker built for demanding three-phase systems. With a 600 V maximum rating, it protects feeders and equipment in commercial and industrial panels while delivering dependable interruption when faults occur. This part is specifically identified as HDA36090SNYP, aligning with Square D's standard for compatible, safe panel protection.

Key capabilities at a glance:

• Current rating: 90 A
• Poles: 3 (three-phase protection)
• Voltage rating: up to 600 V
• Design: HDA series three-pole molded-case breaker designed for reliable protection in Square D installations
• Protection mechanism: Thermal-magnetic trip for fast response to overloads and short circuits

Why choose this model?

• Exact fit for Square D panels that require the HDA series, ensuring proper bus connection and seamless integration in existing electrical installations.
• Balanced three-phase protection helps prevent uneven loading, reducing heat buildup and extending the life of motors and conductors in moderate-to-heavy commercial environments.
• 600 V rating expands its applicability to higher-voltage distributed systems, providing a single protective device across multiple equipment feeds.

Practical use cases

• Upgrading aging circuitry on 3-phase feeders in manufacturing lines, warehouses, or distribution centers.
• Replacing worn breakers in service panels that feed motors, pumps, conveyors, or HVAC equipment in industrial facilities.
• Configuring reliable protection for new 3-phase installations where a standard 90 A, 3-pole device is required.

Installation and safety notes: This circuit breaker should be installed by a qualified electrician in accordance with local electrical codes and the panel manufacturer's specifications. Verify panel compatibility with the HDA series and ensure proper torque on terminals for secure connections.