Square D HDA36150SN 150A 600 V Circuit Breaker

Designed for demanding electrical environments, the Square D HDA36150SN 150A 600 V Circuit Breaker delivers dependable protection for critical power distribution. With a 150 A current rating and a 600 V maximum rating, this breaker is built to guard large feeders and heavy-load circuits from overloads and faults, helping to prevent damage and downtime.

The HDA36150SN part number identifies a precise replacement that matches existing Square D installations, streamlining maintenance and upgrades without guesswork.

Key benefits

• High-current protection: suitable for large feeders and motor circuits where reliable interruption is essential
• 600 V distribution compatibility: capable of safely interrupting high-voltage circuits typical in commercial and industrial settings
• Brand-aligned reliability: backed by Square D’s legacy of durable electrical protection components
• Straightforward replacement: designed for standard Square D panels that accept HDA-series breakers, reducing downtime during swaps

Use cases

• Protects feeders in commercial or light industrial distribution panels
• Serves as a main or sub-feed protective device in systems with up to 150 A load
• Ideal for upgrading aging protection where 150 A/600 V specs are required

Installation and safety

Install this circuit breaker only in equipment that accepts Square D breakers and is rated for up to 600 V. Always have a qualified electrician perform installation, following all local electrical codes and the panel manufacturer’s instructions. Verify correct mounting, alignment with the bus, and proper torque on terminals to ensure reliable operation.

With the Square D HDA36150SN 150A 600 V Circuit Breaker, you get a precise, purpose-built protection device that helps keep your electrical system moving safely and efficiently.