Square D HDA36100UOYP 100A 3-Pole 600 V Circuit Breaker

Square D HDA36100UOYP is built for serious electrical protection in demanding three‑phase environments. This 100 A, 3‑pole, 600 V circuit breaker delivers dependable overcurrent protection for industrial and commercial panelboards, keeping feeders and equipment safe while helping minimize downtime.

Key specifications

• Current rating: 100 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36100UOYP
• Brand: Square D

Why this breaker stands out

• Three‑pole design protects all three phases in a 3‑phase system, ensuring balanced protection across the load.
• Trusted Square D engineering delivers consistent performance in panelboards and distribution gear common to commercial and industrial sites.
• Durable construction designed to withstand the rigors of active electrical environments, providing reliable protection for critical circuits.
• Clear, straightforward replacement within compatible Square D panel systems, making maintenance and upgrades smoother.

Ideal use cases

• Feeder and main circuits in commercial buildings, manufacturing facilities, or distribution centers that operate on 3‑phase power.
• Protection for motors, industrial equipment, HVAC systems, and other large loads that require robust 3‑pole protection up to 100 A.
• Panelboard upgrades or replacements where a 3‑pole, 600 V device is specified.

Practical considerations

• Ensure system voltage and current requirements align with 600 V and 100 A ratings.
• Confirm panel acceptance of Square D HDA series breakers to ensure proper fit and electrical compatibility.
• Use as part of a properly rated protection scheme for safe, reliable operation of three‑phase equipment.

With the Square D HDA36100UOYP, you’re choosing proven, purpose‑built protection for three‑phase circuits up to 600 V. It’s the dependable choice for safeguarding equipment, reducing fault impact, and keeping commercial and industrial operations running smoothly.