Square D HDA36100UP 100A 3-Pole 600 V Circuit Breaker

Introducing the Square D HDA36100UP 100A 3-Pole 600 V Circuit Breaker — a purpose-built protective solution engineered for reliable, three-phase power distribution in demanding commercial and industrial environments. This part number HDA36100UP is designed to fit precise Square D panels, delivering dependable overcurrent protection where it matters most.

Key specifications at a glance

• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V

Why a 3-pole design matters — In three-phase systems, all three conductors need coordinated protection. The 3-pole configuration ensures simultaneous tripping across all phases, safeguarding motors, drives, and other three-phase equipment from damaging faults and reducing the risk of unbalanced loads.

What sets this apart — This is a true Square D replacement part, built to align with Square D enclosures, mounting patterns, and trip characteristics. The HDA36100UP combines dependable performance with straightforward installation, helping maintenance teams swap in a like-for-like solution without compatibility concerns or configuration guesswork.

Ideal use scenarios:

• Protection for three-phase motor circuits in manufacturing lines and industrial equipment up to 100 A
• Primary or secondary protection within commercial distribution panels handling 3-phase loads
• Upgrades or replacements in existing Square D systems to maintain consistent protection across the network

Practical benefits you’ll notice:

• Clear, reliable tripping across all three phases, reducing fault propagation
• Seamless replacement in compatible Square D panels, minimizing downtime and mounting complexity
• Durable construction suited to the rigors of commercial and industrial use environments

If you’re maintaining a three-phase distribution network or upgrading aging panel protection, the Square D HDA36100UP delivers a precise, dependable solution for 100 A, 3-pole, 600 V applications. It’s the targeted, technically aligned choice for professionals who demand compatibility, performance, and peace of mind in every interruption-free moment of operation.