Lightening rods, lightning protection nets, etc. can prevent direct external lightning strikes on buildings, and damage caused by inductive lightning and surge voltages introduced into the interior through cables, communication lines, metal pipes, etc., cannot be avoided by external lightning protection systems. Therefore, indoor electrical equipment, communication networks, household appliances, etc. need to be protected by special lightning protectors.
KEJIA® KDY series power surge protectors are designed according to IEC standards. They can connect the protected circuit to the equipotential system in the shortest time, limit the surge to a certain voltage protection level, and promptly release the earth due to lightning. The high voltage pulse energy reduces the potential difference between the wires and protects the user's power distribution equipment.
KEJIA® KDY-100F power surge protector has a large flow capacity and is a Class 1 power surge protector. According to the principle of lightning protection, once the lightning energy is released by one time, there is still a high residual voltage on the power line. It should be matched with the lightning protection device at the rear stage of the lightning protection system so that lightning energy can be released step by step to effectively protect the terminal power supply. equipment.
When the KEJIA® KDY-100F power supply surge protector is used, use three "KDY-100F type" three-phase four-wire power supply and connect it to the protected end and the neutral wire (L1, L2, L3 and N lines). In between, use a piece of "KDY-100f type" and connect between the zero line and the earth (N line and PE). For the three-phase three-wire power supply, three “KDY-100F type” can be connected between the protected end and the earth (L1, L2, L3 line and PE) lines.
Nominal voltage Un : 690V AC
Maximum continuous operating voltage Uc: 760V AC
Nominal discharge current In: 40kA (8/20μs)
The maximum discharge current Imax: 65kA (8/20μs)
Voltage protection level Up≤4kV(L-N)
Remote letter contact: 1, 3 normally closed, 2, 3 normally open
Upper lead L/N: ≥6mm2
Lower lead PE : ≥10 mm2
Installation method: 35mm DIN rail, EN60715 standard
When using a power surge protector, it must have a reliable PE ground.
When the window turns red, it means that the power surge protector has failed.
Need to replace new products in a timely manner.