Square D HDA36100USYP 100A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36100USYP 100A 3-Pole 600 V Circuit Breaker — a purpose-built protective device engineered to safeguard your 3-phase electrical distribution with dependable performance. This part blends Square D reliability with a precise 100 A rating, making it a trusted choice for commercial and light industrial panels that demand robust overcurrent protection at up to 600 V.

• Part number: HDA36100USYP
• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V

Why a 3-Pole, 600 V design matters

The 3-pole configuration provides synchronized protection across all three phases in a 3-phase system, helping to prevent unbalanced loads and protecting equipment from overcurrent events. With a 600 V rating, this breaker is suitable for medium-voltage distribution in applications where three-phase power is common, ensuring reliable interruption when faults occur.

Ideal use cases

• Feeder protection for 3-phase distribution panels in commercial or light industrial settings
• Protection for branch circuits supplying motors, pumps, and other 3-phase equipment
• Backup protection in panelboards where a compact, authentic Square D device is required

What sets this model apart

The HDA36100USYP is an authentic Square D component, designed to integrate seamlessly with Square D panels and enclosures. Its three-pole architecture ensures coordinated tripping across all phases, contributing to safer shutdowns and reduced risk of collateral damage during faults. Built for durability, this breaker stands up to routine operation in demanding environments while delivering dependable protection when it matters most.

Practical considerations and optimization tips

• Verify that your distribution panel and busbar configuration are compatible with 3-pole 600 V protection before installation.
• Use the exact part number (HDA36100USYP) when ordering to ensure authentic Square D performance and compatibility.
• Follow manufacturer installation torque and mounting guidelines to maintain reliable contact and trip accuracy.
• Keep a spare of this model on hand for quick replacement in critical electrical infrastructure to minimize downtime.

Whether you’re upgrading an aging panel, wiring a new 3-phase feeder, or stocking parts for ongoing maintenance, the Square D HDA36100USYP 100A 3-Pole 600 V Circuit Breaker delivers confident, dependable protection for your 3-phase electrical system.