Circuit Breaker with Tripping NM1 Plastic Case 3310 Three-Phase Four-Wire Fire Shunt Release(50A,4p)

Model: NM1

• Thermal-magnetic tripping technology is used to provide reliable protection against overload and short-circuit faults of the line, ensuring the safe operation of electrical equipment and lines.
• The outer casing is made of flame-retardant engineering plastics, and key components such as internal contacts and bimetal pieces are designed to withstand frequent operations and large current impacts.
• The modular structure supports standard DIN rail installation, is compact in width, takes up less space in the distribution box, and facilitates multi-pole assembly and quick replacement.
• The built-in arc extinguishing chamber can quickly break and cool the fault arc, effectively limiting the arcing time and reducing damage to contacts and adjacent electrical appliances.
• The handle's opening and closing status indication is clear, the manual operation force is small, and daily on-off testing and maintenance are simple. It is suitable for household, commercial and industrial power distribution systems.