Square D KAL3625026M - 250 A, 3-Pole Circuit Breaker | AmpState

Meet the Square D KAL3625026M 250 A, 3-pole molded case circuit breaker — a dependable guardian for large branch circuits in panelboards and loadcenters. Built to deliver consistent protection in demanding environments, this unit blends rugged construction with precise trip performance to keep electrical systems safe and up and running.

Why this breaker stands out

• 250 A, 3-pole design provides robust protection for 3-phase feeders and large branch circuits, helping simplify panel design in commercial and light industrial settings.
• Compact molded case minimizes footprint while maximizing available panel space, letting you fit more protection in a tidy, organized panel.
• Thermal-magnetic trip unit delivers stable, repeatable protection — responding to overload currents with athermal rise and instantly tripping on short circuits to minimize damage and downtime.
• OEM compatibility is engineered to pair with matching Square D loadcenters and panelboards, ensuring seamless integration, consistent performance, and straightforward replacement.
• Versatile applications suited for residential, commercial, and light industrial electrical systems where dependable branch circuit protection is essential.

How it protects your system

The combination of a thermal element and a magnetic element in the trip unit provides two layers of defense. The thermal sensor detects gradual overheating on a circuit, helping prevent nuisance trips during normal operation, while the magnetic trip responds to high-magnitude faults with immediacy. This dual-action design safeguards equipment, reduces the risk of fire hazards, and supports safer maintenance practices in panel installations.

Ideal use cases

• Upgrading or specifying protection for large 3-phase feeders in commercial office buildings, data centers, or industrial control panels.
• Replacing aging or incompatible breakers in Square D panelboards to maintain warranty and compatibility.
• Subpanel protection where a dedicated 250 A, 3-pole device is needed to manage heavy loads efficiently.

Installation and compatibility

Designed for use with matching Square D OEM loadcenters and panelboards, the KAL3625026M simplifies sourcing and installation. When planning a replacement or upgrade, verify that the panelboard is compatible with Square D molded case breakers and that the amperage rating aligns with your feeder requirements. Adhere to all applicable electrical codes and ensure correct torque on terminations to maintain a secure, long-lasting connection.

Technical snapshot

• Manufacturer: Square D
• Part number: KAL3625026M
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 250 A
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection in panelboards and loadcenters

Choose the Square D KAL3625026M for a reliable, space-conscious, and OEM-aligned protection solution that keeps large circuits safeguarded across residential, commercial, and light industrial environments. Durable, precise, and easy to integrate, it’s a practical choice for serious electrical protection needs.