The Schneider Electric Square D YL3KKM44A9SXXXXXXX is a molded case circuit breaker engineered for robust electrical system protection. This unit is part of the Y-frame series, designed to provide reliable circuit interruption in demanding industrial and commercial environments. Its construction ensures consistent performance in applications requiring high current handling capabilities.

Technical details

• Series: Square D Y-frame
• Type: Molded Case Circuit Breaker (MCCB)
• Voltage Rating: 600V AC
• Current Rating: 4000 Amperes (A)
• Frame Size: L-frame (indicated by 'L' in the part number YL3KKM44A9SXXXXXXX)
• Number of Poles: 3-pole (indicated by '3' in the part number YL3KKM44A9SXXXXXXX)
• Interrupting Rating: To be verified against manufacturer datasheet; typically encoded in the latter part of the part number.
• Terminal Type: Lug terminals (indicated by 'KM' in the part number YL3KKM44A9SXXXXXXX)

Applications & compatibility

This circuit breaker is suitable for main distribution panels, motor control centers, and large equipment protection in heavy industries such as manufacturing plants, data centers, and utility substations. It is designed to integrate seamlessly into existing Square D electrical distribution systems.

Available from Industrial Automation Co as new, refurbished, or surplus stock, backed by a 2-year warranty with same-day shipping on in-stock items. Request a quote for the Schneider Electric Square D YL3KKM44A9SXXXXXXX or contact our technical team for cross-reference assistance with compatible Y-frame components.