The Schneider Electric Square D QBA221251 is a molded case circuit breaker engineered for robust electrical system protection. As part of the QBA series, this 2-pole breaker is designed for use in Class 650, 734, and 820 I-Line panelboards and switchboards, providing reliable circuit interruption. Its thermal magnetic trip unit ensures dual-stage protection against overcurrent conditions.

Technical details

• Series: Square D QBA
• Poles: 2
• Current Rating: 125 Amperes (A)
• Voltage Rating: 240 Volts AC (V AC)
• Trip Technology: Thermal Magnetic
• Interrupting Rating: To be verified against manufacturer datasheet.
• Connection Type: To be verified against manufacturer datasheet.
• Mounting Type: Designed for I-Line panelboards and switchboards.

Applications & compatibility

This circuit breaker is specifically suited for applications requiring reliable overcurrent protection within Schneider Electric's I-Line power distribution systems. It is commonly found in commercial and industrial facilities, including manufacturing plants, data centers, and building management systems where consistent power integrity is critical.

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 QBA221251 or contact our technical team for cross-reference assistance with compatible I-Line components.