Shihlin Electric NF400-CN Molded Case Circuit Breaker

Description:

The Shihlin NF400-CN Molded Case Circuit Breaker is used in industrial power distribution systems to provide overload and short-circuit protection for electrical equipment and feeder circuits. Commonly installed in switchboards, motor control centers, industrial control panels, and manufacturing facilities requiring high-capacity circuit protection. Maintenance teams, electrical contractors, and system integrators use this breaker for power distribution upgrades, equipment protection, and replacement of failed molded case breakers in industrial environments. The NF400-CN belongs to the Shihlin NF400 frame series and is designed for continuous-duty low-voltage power distribution applications.

Applications:

The Shihlin NF400-CN circuit breaker is commonly used in manufacturing plants, commercial facilities, process industries, pumping stations, and electrical distribution systems where reliable overload and short-circuit protection is required. The breaker is suitable for feeder circuits, large motors, transformers, and industrial machinery operating on low-voltage three-phase power systems.

Technical Specifications:

• Manufacturer part number (MPN): NF400-CN
• Manufacturer: Shihlin Electric
• Product type: Molded case circuit breaker (MCCB)
• Current rating: 400 A
• Rated operational voltage: 690 VAC maximum
• Frequency: 50/60 Hz
• Frame size: 400AF
• Number of poles: 3 Pole typical
• Protection type: Thermal magnetic trip
• Breaking capacity series: CN
• Standard compliance: IEC 60947-2
• Mounting type: Panel mount
• Terminal type: Lug terminals
• Application: Feeder and equipment protection
• Installation environment: Industrial and commercial power distribution
• Operating temperature: Industrial service environment
• Duty rating: Continuous duty
• Service application: Repair and replacement component
• Approximate weight: 5.6 kg (12.3 lb) for NF400 frame units.

Common Replacements:

• Shihlin BM400-CN Molded Case Circuit Breaker
• Mitsubishi NF400-SW Molded Case Circuit Breaker
• Schneider Electric NSX400 Molded Case Circuit Breaker