Square D KAL3625021M - 250 A, 3-Pole Circuit Breaker | AmpState

Introducing the Square D KAL3625021M, a 250 A, 3-pole molded case circuit breaker engineered for reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to integrate with matching OEM panels, this unit delivers consistent performance in a compact footprint, making it a dependable choice for residential, commercial, and light industrial electrical systems. Available from AmpState, it combines trademark Square D reliability with practical design for everyday installations.

Why this breaker stands out

• Compact molded case design maximizes panel space, helping you fit more protection without crowding the enclosure.
• Thermal-magnetic trip unit provides stable, repeatable protection by automatically adjusting to current conditions, reducing nuisance trips while maintaining safety.
• OEM-compatible compatibility engineered to pair seamlessly with matching Square D load centers and panelboards for straightforward installation and reliable performance.
• Versatile application range suitable for residential, commercial, and light industrial circuits that require robust overcurrent and short-circuit protection.

Technical specifications

• Manufacturer: Square D
• Part Number: KAL3625021M
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 250 A
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Use cases and installation scenarios

Ideal for panelboards and load centers where a high-current, three-pole protection solution is required. This breaker is well-suited for three-phase equipment in commercial spaces, light industrial drives, and large residential installations that demand dependable protection against overcurrent and short circuits. Its compatibility with OEM Square D panels simplifies upgrades and replacements, reducing commissioning time and ensuring consistent trip characteristics across the system.

Practical considerations and tips

• Verify panel compatibility with the KAL3625021M to ensure a secure fit and proper electrical contact with the bus structure.
• Consider anticipated load and startup surges in your design to confirm that a 250 A rating provides the appropriate margin for continuous operation and startup conditions.
• Pair with a matching Square D panelboard or load center to preserve trip curve consistency and electrical labeling clarity.
• Follow manufacturer guidelines for mounting, torque specifications on connection terminals, and enclosure clearance to maintain optimal protection performance.

With its combination of a compact form factor, reliable thermal-magnetic protection, and OEM-grade compatibility, the Square D KAL3625021M stands out as a purpose-built solution for robust, long-lasting circuit protection. Choose this breaker for dependable performance, easier panel upgrades, and peace of mind across residential, commercial, and light industrial electrical installations.