CNC Fuse RT18L Series Low Voltage Fuse

These CNC Fuses are supporters for fuses with size up to 22*58mm. They are capable of working under hear cased by rated current and expected short impacting current up to 100kA. It can also function as a fuse disconnecting switch by multi-phase combination. There are two in/out lines at the RT18N fuse base, providing a power cut function. The RT18L type has a safety lock to lock the fuse carrier when disconnected to avoid wrong operation; it can also be equipped with an indicator, which goes on when the fuse links breaks. Rated insulate voltage up to 690V; Working frequency 50Hz AC;

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  • Protection: The fuse holder is made of high-quality materials, which can effectively protect the circuit and extend the service life of the fuse.
  • Use in many places: Cnc low voltage fuse holder can be used in factory, warehouse, factory and other places.
  • Simple to install: The fuse holder is easy to install, no complicated tools are required, and it can be installed in a few minutes.


  • Power systems: Protect motors, transformers and other electrical equipment in power systems from overload and short-circuit damage
  • Used to protect circuits, electrical components and motors in industrial control systems to prevent equipment damage caused by current overload or short circuit
  • Used to prevent overloading of electrical circuits in buildings and real estate projects, protecting wires, sockets and other electrical equipment
  • Used in automobiles, trains, boats and other vehicles to protect circuits and electronic equipment from damage caused by current overload
  • Used in household appliances, such as air conditioners, refrigerators, washing machines, etc., to prevent electrical equipment from being overloaded or short-circuited to cause fire or equipment damage


Model of


Applicable  fuse link size Rated insulation voltage Rated    current(A) Overall dimension(mm)
A1 A2 B H1 H2
RT18L-63 14×51 690 63 108 115 27 78 100
RT18L-125 22×58 690 125 126 134 36 78 104