The Schneider Electric Square D NJNM36400E20 is a molded case circuit breaker designed for robust electrical protection in industrial environments. This 400-amp, 600-volt unit is part of the NNJM series, engineered to deliver reliable performance and safety for critical power distribution systems. Its construction is optimized for demanding applications where consistent operation under heavy loads is paramount.

Technical details

• Series: NNJM
• Type: Molded Case Circuit Breaker
• Current Rating: 400 Amps
• Voltage Rating: 600 Volts AC
• Interrupting Rating: Verify with manufacturer datasheet for specific AIC rating.
• Number of Poles: Typically 3-pole for this series, verify with datasheet.
• Terminal Type: Verify with manufacturer datasheet for specific terminal configuration.
• Frame Size: Verify with manufacturer datasheet for specific frame size designation.

Applications & compatibility

This circuit breaker is commonly specified for use in main distribution panels, motor control centers, and feeder protection circuits within heavy industries such as manufacturing plants, data centers, and commercial buildings. It is designed to integrate seamlessly into existing Square D electrical infrastructure, providing dependable circuit protection for a wide range of equipment.

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 NJNM36400E20 or contact our technical team for cross-reference assistance with compatible NNJM series components.