Square D HGL36090 - 90 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D HGL36090, a 90 A, 600 V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built for 3‑phase systems, this unit integrates seamlessly with compatible OEM enclosures to keep your electrical distribution clean, reliable, and easy to service. Available from AmpState, it’s a practical upgrade for professional panel builders and qualified electricians alike.

• Compact molded case design optimizes panel space without compromising protection, making it ideal for tight electrical closets and modern load centers.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both slow-overload conditions and instantaneous short circuits, helping prevent conductor damage and equipment failure.
• OEM-compatible fit is guaranteed with matching Square D load centers and panelboards, ensuring a trouble-free retrofit or new installation.
• Versatile across applications tailored for residential, commercial, and light industrial environments where consistent protection and quick, reliable replacement matter.

Technical snapshot

• Amperage rating: 90 A
• Voltage rating: 600 V
• Number of poles: 3
• Type: Thermal-magnetic molded case circuit breaker
• Manufacturer: Square D

Use cases that benefit from this breaker

• Three‑phase panel installations in small commercial spaces where space efficiency and dependable protection are priorities.
• Upgrades to existing service panels in light industrial settings, especially where motors or drives require robust short‑circuit protection on 3‑phase lines.
• Retrofits or initial builds in OEM‑compatible load centers, simplifying procurement and reducing compatibility risk.

Why this matters for you: the HGL36090 isn’t just a spec sheet entry — it’s a practical piece of your electrical backbone. The combination of a compact form factor and a reliable thermal-magnetic trip ensures quick installation, predictable response, and long-term protection for cables, bus bars, and connected equipment. If you’re building or upgrading a panel where 3‑phase distribution and safe, repeatable protection are non-negotiable, this 90 A, 600 V, 3‑pole breaker delivers precise performance when it’s most needed.

Choose the Square D HGL36090 for a targeted, durable solution that aligns with your panel system and delivers consistent protection across residential, commercial, and light industrial applications.