Schneider Electric MJA36400 | 400 Amp 3-Pole PowerPacT M-Frame Circuit Breaker

Main Description:

The Schneider Electric MJA36400 PowerPacT M-Frame Circuit Breaker delivers dependable protection for commercial and industrial electrical systems. Built with a robust 400A rating and operating at 600VAC, it provides reliable overload and short-circuit defense. Equipped with the ET 1.0 electronic trip unit, the MJA36400 ensures precise long-time protection while maintaining consistent performance. Designed with I-Line line-side connections and mechanical load-side lugs, it installs easily into standard distribution equipment and supports high-efficiency power management in demanding environments.

Technical Overview:

• Manufacturer: Schneider Electric

• Part Number: MJA36400

• Type: PowerPacT M-Frame

• Poles: 3

• Amperage Rating: 400 Amps

• Voltage Rating: 600 VAC

• Interrupting Rating: 25 kA @ 600 VAC

• Trip Unit: ET 1.0 (Electronic, Long-Time)

• Magnetic Trip Range: 800–4000 Amps

• Continuous Current Rating: 80%

• Connection Type: I-Line (line) / Mechanical Lugs (load)

• Breaker Family: M-Frame Series

• Approvals/Certifications: UL, CSA, NOM, IEC, CE

• Net Weight: 29 lb (13.15 kg)

• Condition: New/Never Used Surplus

Key Features:

• Reliable electronic long-time trip protection

• Heavy-duty 400A rating for industrial applications

• I-Line mounting for fast, secure installation

• Thermal-magnetic protection for overloads and short circuits

• Integral push-to-trip capability for manual testing

• Durable molded-case construction for long-term performance

• Compliant with global electrical safety standards