Cut Out Fuse Insulator

Cut Out Fuse Insulator

Porcelain or polymer drop out fuse cutouts and load switching fuse cutouts are for outdoor use. They mainly protect transformer or lines from short circuit and overload, and on/off loading current to be connected with in coming feeder of distributing transformer or distribution lines.

Porcelain drop out fuse cutout is composed of insulator supports and fuse tube, static contacts is fixed on two sides of insulator support and moving contact is insulated on two ends of fuse tube. Fuse tube is composed of inside arc-extinguishing tube, outer phenolic compound paper tube or epoxy glass tube. Load switch fuse cutout provides enforces elastic auxiliary contacts and arc-extinguishing enclosure for switching on/off loading current.

Main dimensions and standard particulars
Voltage class kV Fig. No Creepage Distance mm Cantilever Strength kN Main dimensions (mm) Shed Number Weight Kg
H D d
15 1 220 18 287 87 32 8 2.8
15 1 240 18 287 90 32 8 2.8
15 1 255 20 287 105 32 8 3.2
25 2 300 10/12.5 376 90 32 12 3.5
25 2 340 10 375 96 35 12 3.7
25 2 280 10 376 87 32 12 3.4
25 2 360 10 376 102 35 12 3.9
24/27 3 470 10 376 131 35 12 5.8
Applicable Standard: IES ANSI AS
Voltage class kV Fig. No Creepage Distance mm Cantilever Strength kN Main dimensions (mm) Shed Number Weight Kg
H D d
24/27 4 460 10 375 129 32 10 6
25/27 5 432 6.8/10 467 95 32 17 5.2
24/27 4 450 10 376 127 32 10 5.8
24/27 4 500 10 365 150 35 10 6.5
25/27 4 550 10 375 155 35 10 6.9
33/36 6 660 6.8/10 467 130 35 16 7.5
33/36 6 660 6.8/10 467 121 32 16 7.5
Applicable Standard: IES ANSI AS

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