Key Technical Specifications (Engineer-Focused)

• Model: SKP NF400-CP (Direct Replacement for Mitsubishi NF400-CP/CW)
• Poles: 3P (Three-Pole), compatible with 3-phase 3-wire systems
• Rated Current (In): 400A, stable operation under full load conditions
• Rated Voltage: Ue 380/440V AC (50/60Hz), Ui 690V AC (insulation voltage)
• Breaking Capacity: Icu 36kA @ 400/415V AC, reliably interrupts short-circuit faults
• Trip Type: Thermal-Magnetic (T-M) – Long-delay overload protection (thermal) + Instantaneous short-circuit protection (magnetic)
• Standards: Complies with IEC 60947-2 & GB 14048.2, meets industrial safety requirements
• Mounting & Connection: Fixed mounting, front wiring, identical dimensions to Mitsubishi NF400 for seamless replacement (no panel modification required)
• Material: Flame-retardant molded case, high thermal/mechanical resistance for harsh industrial environments

Replacement Advantages for Engineers

• 1:1 Form-Fit Replacement: Directly interchangeable with Mitsubishi NF400 series, minimizes downtime during maintenance/upgrade
• OEM-Equivalent Performance: 36kA high breaking capacity, thermal-magnetic trip precision, matches original protection level
• Cost Optimization: Significantly lower cost than original OEM breaker, without compromising quality or reliability
• Wide Compatibility: Suitable for industrial power distribution, motor protection, switchboards, and generator systems – same application scope as original
• Easy Installation: No need to modify panel layout, identical terminal positions and mounting holes for hassle-free retrofitting