Knife Switch with Fuse (Fuse Switch,Electronic Switch) - Yueqingcity Kangji Electric Co.,Ltd.

Knife switch with fuse (knife switch,electric switch) (HR3-400A)

Produc Description

HR3 series knife switch with fuse is applicable for power distribution system of AC50Hz,380V and rated current up to 1000A,used for short-circuit protection as well as overload protection of cable and conductor.

Under normal condition,it also can be used to make and break the normal current and over-load current infrequently by manual,under short-circuit condition,it cut off the current by means of fusing of fuse-element.

The knife witch with fuse is a kind of composite that is make up of fuse and knife switch,it shows basic performance of fuse and knife switch.

Technical Parameter

Model	Rated working voltage (V)	Rated isolation voltage(V)	Rated working current(A)	Conventional thermal current(A)	Applicable fuse link
HR3-100/31	380	660	100	100	RT0-100
HR3-200/31			200	200	RT0-200
HR3-400/31			400	400	RT0-400
HR3-600/31			600	600	RT0-600
HR3-1000/31			1000	1000	RT0-1000

Operation mode and maintenance

"1"denotes obverse side lever mechanism type,fore maintenance

"2"denotes obverse central lever driving mechanism type,rear maintenance

"3"denotes obverse side operation handle type,rear maintenance

"4"denotes obverse side lever driving mechanism without panel type,fore maintenance

Pole number:3Pole