Square D | KA362501021 | Circuit Breaker | 250A | 3-Pole

Meet the Square D KA362501021 Circuit Breaker — a purpose-built 250A, 3-Pole device designed for demanding electrical environments where reliable protection matters. This breaker is specifically suited for maintenance, retrofit, and replacement projects, delivering a precise match to your existing system when the KA362501021 part number is the reference you trust.

Why this KA362501021 breaker stands out

• Exact compatibility is built in. The KA362501021 designation is the clearest reference for ensuring your panel, bus configuration, and protection scheme stay aligned with factory specifications.
• High-current, three-phase protection. With a 250A rating and 3-pole construction, it’s designed to interrupt and isolate three-phase circuits safely, helping prevent equipment damage and downtime.
• Maintenance-friendly and retrofit-ready. This breaker is ideal when expanding capacity, replacing a failed unit, or updating an aging panel to support current loads without overhauling the entire system.
• Durable, mission-critical design. Built by Square D to withstand regular operation in demanding environments, delivering dependable performance when it matters most.
• Clear fit guidance. Before ordering, verify fit and ratings against your panel’s model and service requirements to ensure a trouble-free replacement.

Ideal use scenarios

• Replacing a worn or failed three-phase breaker in industrial control panels, commercial feeders, or distribution panels that require 250A capacity.
• Retrofits where a panel must maintain exact protective characteristics without altering wiring or bus configurations.
• Upgrading legacy systems to modern protection levels while preserving existing layout and disconnect schemes.
• Applications in manufacturing plants, data centers, or facilities with significant three-phase loads seeking reliable interruption and protection.

Compatibility and installation considerations

The best reference for compatibility is the KA362501021 part number. To ensure a seamless fit, confirm:

• Panel model and series accept 3-pole, 250A protection suitable for the intended load.
• Bus configuration and mounting style align with the breaker’s design.
• Ratings and trip characteristics meet the specific protection requirements of your system.

What to expect in operation

Once installed, this 250A, 3-pole breaker delivers reliable overcurrent protection for three-phase circuits, helping to prevent equipment damage and minimize unplanned downtime. Its straightforward replacement workflow makes it a practical choice for routine maintenance, critical retrofits, or capacity upgrades without extensive rewiring or panel modification.

In short, the Square D KA362501021 is a precise, purpose-built solution for professionals who need a dependable, exactly-spec’d 3-pole, 250A circuit breaker that matches their existing protection scheme. Use it where accuracy, reliability, and a clear compatibility reference matter most.