Square D KAL36090 - 90 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet decisive, dependable protection for three‑phase panel setups with the Square D KAL36090. This 90 A, 600 V, 3‑pole molded case circuit breaker is engineered to guard branch circuits and prevent short circuits in panelboards and loadcenters, keeping equipment and occupants safe while minimizing nuisance trips.

• Compact molded‑case design makes efficient use of valuable panel space, helping you fit protection where it matters without crowding other breakers or conductors.
• Thermal‑magnetic trip unit delivers stable, repeatable protection performance for both overloads and short circuits, reducing the risk of unexpected outages and ensuring coordinated protection across your distribution system.
• OEM compatibility is built in—this breaker is designed to work with matching Square D panelboards and loadcenters for straightforward installation, reliable electrical coordination, and fewer guesswork replacements.
• Designed for diverse applications—ideal for residential, commercial, and light industrial environments where dependable 3‑phase protection is essential.

Key specifications

• Manufacturer: Square D
• Part Number: KAL36090
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 90 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short‑circuit protection

Why this breaker matters for your system

In any setup with three‑phase power, precise coordination between protection devices is critical. The KAL36090’s thermal‑magnetic trip mechanism responds quickly to both overloads and short circuits, helping to isolate faults before they propagate. Its compact form factor frees up space in crowded panels, while its compatibility with Square D OEM loadcenters simplifies replacements and upgrades. Whether you’re building a new commercial electrical room, expanding a light industrial panel, or retrofitting residential three‑phase circuits, this breaker provides reliable, serviceable protection you can count on.

Who benefits most

• Electrical contractors upgrading or expanding panelboards in commercial or light industrial facilities
• Facilities managers seeking dependable, easy‑to‑order protection for three‑phase systems
• Property developers requiring components that fit standard OEM panelboards for faster installations

Practical guidance and best practices

Pair the KAL36090 with matching Square D loadcenters or panelboards to maintain optimal protection coordination. Use it to guard feeders and branch circuits in 3‑phase distributions, ensuring clean shutdowns during faults while minimizing disruption to unaffected circuits. When planning replacements, verify that the panelboard’s catalog number aligns with the KAL series for seamless compatibility and predictable trip curves across your electrical distribution.