General FN-24 Indoor Load Break Switch with epoxy supports, double switch blades and contacts with arc quenching chambers and lagging pins, loopless current paths, structural steel base frame, with quick making and stored energy tripping device for three-pole disconnection by the fuse-striker-pin.
XIKAI Load Break Switches have proved to be excellent for years. They have many advantages which have made this type of switch superior to others.
The dry type arc quenching chambers join two switch principle for safe disconnection of heavy and small currents. The present kind of consruction is characterized by a clear and easily surveyable unitized system. The arcing contacts are guided through a chute to achieve total safety. Due to plastic insulation, the load break switch has a lighter weight and greater electrical and mechanical safety.
FN-24DR switch can be used with ring main units, as transformer switches(with high-tension XRNT fuses as short circuit protection) or instead of bus isolators in distribution stations.
The FN-24 load break switches fulfill IEC60265 specification.
Rated short time current 1 secretary(Ith) 3. secretary(Ith)
Rated peak current (Idvn)
Rated short circuit making capacity ima
Rated mainly load breaking current capacity cosΦ=0.7
Max.Mainly active load breaking capacity cosΦ=0.7
Rated closed breaking capacity cos Φ=0.3
Rated single breaking capacity
Rated cable charging capacity
Power frequency withstand voltage 50Hz 1 min
kA rms kA rms
To earth Interphase/insulating voltage peak
kV peak kV peak
Mac.operating torque when Closing Opening
Operating angle on the shaft
Earthing switch attachment Rated short-time current Peak withstand current Short circuit making capacity Power frequency withstand voltage (Lighting )impulse resisting voltage Pole distance