Square D HDA36090SJYP 90A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36090SJYP 90A 3-Pole 600 V Circuit Breaker—a purpose-built protection device engineered for reliable, three-phase power management in demanding industrial and commercial environments. With a 90 amp current rating, three poles, and a 600 V maximum rating, this breaker pairs robust protection with straightforward integration into Square D distribution systems.

Key specifications at a glance

• Current rating: 90 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36090SJYP
• Series: HDA family

What makes this breaker uniquely valuable

This 3-pole design is specifically suited for three-phase electrical systems, delivering dependable overcurrent protection for feeders and motors up to 90 amperes. The 600 V rating expands its utility across industrial and commercial installations that demand higher voltage protection, while the compact, molded-case construction supports durable endurance in panelboards and switchgear environments. Choosing a Square D breaker means consistent electrical coordination within your distribution network, helping you maintain service continuity and simplify maintenance routines.

Ideal use cases

• Protection for three-phase motor circuits in manufacturing lines
• Feeder protection for commercial or light industrial power distribution panels
• Replacement breaker in compatible Square D panels requiring a 90 A, 3-pole, 600 V device
• Part of a scalable protection strategy for facilities upgrading to higher-voltage step-down or distribution configurations

Practical considerations and better outcomes

Install this breaker to achieve precise current limiting for multi-line feeders, reducing the risk of overheating and equipment damage during overload events. Its three-pole configuration ensures balanced protection across all phases, which is critical for evenly protected motors and equipment with three-phase loads. When selecting a replacement, verify compatibility with your Square D panel or switchgear and confirm that the HDA36090SJYP matches the required 90 A, 3-pole, 600 V specifications for seamless integration.

Why choose Square D for protection needs

Square D has a long-standing reputation for reliable electrical protection solutions. The HDA36090SJYP embodies that legacy with a design focused on predictable trip behavior, straightforward installation, and durable construction that stands up to demanding environments. For engineers and technicians, this means fewer surprises during commissioning and ongoing operation, plus clear, consistent performance across your power distribution architecture.