The Schneider Electric Square D QJA221751 is a molded case circuit breaker designed for robust electrical protection in commercial and industrial environments. This 2-pole breaker offers a reliable 175-amp current rating and operates at a standard 240V, making it suitable for a wide range of power distribution and equipment protection applications.

Technical Details

• Series: Square D QJ Series
• Poles: 2
• Voltage Rating: 240V AC
• Amperage Rating: 175A
• Interrupting Rating: To be verified against manufacturer datasheet; typically encoded in the part number for QJ series breakers.
• Terminal Type: Lug terminals, suitable for wire or busbar connections.
• Mounting Type: Panel mount, designed for installation in switchboards and panelboards.
• Trip Unit Type: Thermal-magnetic, providing overcurrent and short-circuit protection.

Applications & Compatibility

This circuit breaker is commonly employed in main distribution panels, sub-panels, and as branch circuit protection for heavy-duty equipment. It is well-suited for applications within manufacturing facilities, data centers, commercial buildings, and anywhere reliable overcurrent protection is critical for preventing equipment damage and ensuring operational continuity.

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 QJA221751 or contact our technical team for cross-reference assistance with compatible Square D QJ series components.