The Schneider Electric ComPacT NSX400S DC circuit breaker is engineered for robust DC power distribution and protection in demanding industrial environments. This 4-pole breaker, part of the ComPacT NSX series, features a TM-DC trip unit and is rated for 320A with a significant interrupting capacity of 100kA at 750VDC, making it suitable for high-fault current applications.

Technical details

• Series: ComPacT NSX DC
• Model: NSX400S DC
• Configuration: 4-pole
• Rated Current: 320 A
• Trip Unit: TM-DC
• DC Voltage Rating: 750 VDC
• Interrupting Capacity: 100 kA at 750 VDC
• Frame Size: 400 A

Applications & compatibility

This circuit breaker is designed for use in DC power systems found in renewable energy installations, battery storage systems, DC traction applications, and industrial DC switchgear. Its high interrupting rating ensures safety and reliability in systems where significant fault currents can occur.

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 C40S4TM320D or contact our technical team for cross-reference assistance with compatible ComPacT NSX DC components.