PRODUCTS-FUSE KNH5

KNH5 series bar and fuse type switch disconnector is applicable in the circuit of rated voltage AC 660V and below,rated current AC160A-630A,rated frequency of 50Hz.

In the power distribution system of industrial enterprises,it is mainly used in distributor circuit and motor circuit with high short-circuit current for infrepuency manual making and breakin and disconnecting the power supply. However,it is not suitable for starting and breaking of single motor.

Ambient temperature:-5篊~+40篊,the average temperature shall not exceed 35篊 in 24 hours.

Altitude:Shall not exceed 2000m.

Pollution condition:Grade3

Humidity: The relative humidity shall not exceed 50%when the environmental temperature is +40篊 in installing place:And the relative humidity may be higher at the lower temperature condition, The maximum humidity can up to 90% at +20篊

The product shall be installed in the place without rain and snow , without remarkable shake and quiver.

The switch shall be installed vertically.

The switch is consisted of underpan, base,cover,handle and shield.NT series fuse link is installed in the cover to act as knife of active contact: the handle moves fan-shapely based on the pivot of underpan,makes the cover and fuse make and break together,it is with enough space and remarkable disconnection point which meets the requirement of disconnector switch.And it is convenient to dismount the base and underpan,which is easy to mount the base to the busbar safely and reliably.There is arc extinguisher on the underpan,which ensures breaking capability of the switch.

Conventional thermal current		160	250	400	630
Rated insulation Voltage		8000
Rated current	380V AC20	160	250	400	630
	380V AC21	160	250	400	630
	380V AC22	160	250	400	630
	660V AC20	160	250	400	630
	660V AC21	100	200	315	425
	660V AC22	100	160	315	315
Size		00	1	2	3
Fuse	380V Rated current of fuse (Breaking capacity)	20 ,25 ,32 ,35 40 ,50 ,63 ,80 100 ,125 ,160 ( ≥100kA)	80 ,100 ,125 160 ,200 224 ,250 ( ≥100kA)	125,160,200 224,250,300 315,355,400 ( ≥100kA)	315,355,400 425,500,630 ( ≥100kA)
Fuse	660V Rated current of fuse (Breaking capacity)	20 ,25 ,32 ,35 40 ,50 ,63 ,80 100 ( ≥50kA)	80 ,100 ,125 160 ,200 ( ≥50kA)	123,160,200 224,250,300 315 ( ≥50kA)	315,355 400,425 ( ≥50kA)

Model	A	B	C	D	E	F
KNH5-160 independent operation phase to phase	650	49	150	230	185
KNH5-160/L Simultaneous operation of three phases	590	49	198	322	185	100
KNH5-250 400 630 independent operation phase to phase	764	99	195	300	185
KNH5-250 400 630 /L Simultaneous operation of three phases	764	99	195	457	185