The Schneider Electric Merlin Gerin NS400L is a 4-pole molded case circuit breaker designed for robust electrical distribution and protection in industrial environments. This unit is rated for 400 amps and operates at a nominal voltage of 690 VAC, making it suitable for medium-voltage applications and heavy-duty power systems. Its construction ensures reliable performance in demanding conditions.

Technical details

• Series: Merlin Gerin NS Series
• Type: Molded Case Circuit Breaker (MCCB)
• Poles: 4
• Rated Current: 400 Amps at 40°C ambient temperature
• Rated Operational Voltage: 690 VAC
• Frequency: 50/60 Hz
• Interrupting Capacity: Please consult the manufacturer's datasheet for specific interrupting ratings.
• Trip Unit Type: Thermal-magnetic (specific settings require datasheet verification)

Applications & compatibility

This circuit breaker is commonly employed in main distribution panels, motor control centers, and power distribution units for heavy industrial machinery. It is designed for use in applications such as manufacturing plants, large commercial buildings, and infrastructure projects requiring reliable circuit protection for high-capacity loads. Compatibility with specific switchgear and busbar systems should be verified against the manufacturer's installation guidelines.

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 Merlin Gerin NS400L or contact our technical team for cross-reference assistance with compatible Merlin Gerin components.