The Schneider Electric Square D NJNS36400E20AAUO is a molded case circuit breaker designed for robust electrical system protection. This unit operates within a 600V class and features a 400A current rating, making it suitable for heavy-duty industrial power distribution and motor control applications. Its construction ensures reliable performance in demanding environments.

Technical details

• Series: Square D NJNS
• Voltage Rating: 600V AC
• Current Rating: 400A
• Interrupting Capacity: High (specific AIC rating to be confirmed via manufacturer datasheet)
• Frame Size: 400A frame
• Number of Poles: 3-pole
• Terminal Type: Screw terminals (specific size to be confirmed via manufacturer datasheet)
• Actuator Type: Toggle handle
• Mounting Type: Surface mount

Applications & compatibility

This circuit breaker is commonly employed in main service disconnects, feeder protection, and branch circuit protection for large industrial machinery. It is compatible with electrical distribution panels and motor control centers requiring a 400A, 600V rated breaker, such as those found in manufacturing plants, data centers, and large commercial facilities.

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 NJNS36400E20AAUO or contact our technical team for cross-reference assistance with compatible Square D components.