Square D HDA36080SL 80A 3-Pole 600 V Circuit Breaker

Engineered by Square D, the HDA36080SL is built to protect critical three-phase power systems with clarity and reliability. With an 80 A rating and 3 poles, this circuit breaker intercepts faults before they propagate, helping prevent equipment damage, downtime, and costly issues in demanding commercial and light industrial environments. Rated for up to 600 V, it’s ready to handle mid- to high-voltage feeders and motor circuits that keep operations running smoothly.

Key specifications

• Current rating: 80 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HDA36080SL
• Brand: Square D

What makes this breaker unique

The HDA36080SL is designed to integrate seamlessly within Square D panels, ensuring a consistent fit and electrical characteristics with other devices in the family. Choosing this model means dependable protection for three‑phase feeders and motor circuits without guesswork on compatibility or replacement.

• Precise protection for three‑phase systems up to 600 V
• Standardized form factor that simplifies replacement and maintenance
• Clear identification by part number for accurate ordering and inventory

Ideal use cases

• Three-phase feeders in commercial buildings, data centers, or manufacturing floors
• Motor and equipment circuits requiring reliable 80 A protection
• Branch circuit protection in Square D panelboards that accept HDA-series devices

Installation and compatibility tips

To maximize safety and performance, follow the panel manufacturer's guidelines and use the proper torque specifications when securing the breaker. Verify that the panel you’re upgrading is designed for three-pole 600 V devices and that the HDA36080SL is the correct replacement part for your Square D installation. Always disconnect power before servicing and label circuits to reflect protective device changes.

Why it’s a smart choice for your project

If you’re balancing reliability, serviceability, and a trusted brand ecosystem, the Square D HDA36080SL delivers. It combines straightforward three‑phase protection with a proven track record in electrical installations across commercial, industrial, and data‑driven environments. Invest in a device that aligns with your existing Square D components and simplifies ongoing maintenance.