Square D HDA36100SV 100A 3-Pole 600 V Circuit Breaker

Meet the Square D HDA36100SV 100A 3-Pole 600 V Circuit Breaker—a trusted solution for robust overcurrent protection in demanding three-phase power systems. Built by Square D, this circuit breaker is designed to safeguard feeders and branch circuits up to 600 volts, delivering dependable performance in commercial and light industrial applications.

Why this matters

In three-phase layouts, balanced protection is essential. The HDA36100SV features a three-pole design that protects all phases simultaneously, reducing the risk of uneven current distribution and nuisance trips. With a 100 A rating, it provides precise protection for circuit feeders and distribution paths, helping to prevent equipment damage, downtime, and costly repairs.

Key specifications at a glance

• Current rating: 100 amperes
• Poles: 3-pole configuration for three-phase protection
• Voltage rating: up to 600 V
• Brand and model: Square D HDA36100SV

Ideal applications

• Three-phase distribution panels in manufacturing facilities, warehouses, and processing plants
• Protection for industrial feeders and branch circuits powering motors, drives, and heavy equipment
• Commercial electrical installations requiring reliable, uniform protection across all three phases

What makes it unique

The HDA36100SV is more than a breakpoint in a circuit; it’s a carefully engineered protection device designed to handle real-world electrical loads. Its three-pole design ensures synchronized tripping across all phases, contributing to safer startup sequences and more stable operation of three-phase equipment. Built to perform consistently in environments where protection, reliability, and quick response matter, this breaker helps you maintain uptime and protect critical machinery.

Installation and best practices

To maximize safety and performance, install the Square D HDA36100SV in appropriately rated panels and enclosures designed for three-pole circuit breakers. As with any high-voltage protection device, ensure the equipment is de-energized and handled by qualified personnel following applicable electrical codes and safety standards. When replacing or upgrading, verify that the new breaker matches the system’s voltage and current requirements and that the mounting and wiring align with manufacturer guidelines.

Care, maintenance, and troubleshooting

Regular inspections of electrical panels should include checking for signs of overheating, wear, or physical damage around the breaker. If the system experiences frequent trips or unexpected behavior, verify load balance across phases and ensure conductors and connections remain secure. For persistent issues, consult a qualified electrician to assess circuit loading, conductor sizing, and overall protection strategy.

Why choose Square D for your protection needs

Square D combines longstanding expertise with practical, field-tested protection solutions. The HDA36100SV offers reliable three-phase protection with a straightforward, durable design that aligns with standard installation practices in many facilities. By selecting this breaker, you’re investing in a trusted component designed to help maintain safe, continuous operation of three-phase power systems up to 600 V.

Note: Always follow applicable electrical codes and manufacturer instructions when selecting, installing, or maintaining circuit protection equipment.