High-Voltage Limt-Gurrent Fuse For Protection Of Electrical Motor

High-Voltage Limt-Gurrent Fuse For Protection Of Electrical Motor

This product can be used in indoor Ac system of 50Hz rated voltage of 3.6KV, 7.2KV and 12KV. When used together with other protection facilities (such as switches and vacuum contactors), it works to protect high-voltage motor and other electric facilities from overloading and circuit break. 

high voltage limt gurrent fuse for protection of electrical motor 1

 

Foreign Type

 

Rated voltage Kv

Rated break current KA

Rated current of the fuse (A)

Major dimensions

A

B

C

D

XRNM1-3.6

WDF.0

3.6

50

50, 63, 100, 125

337

(390)

254

(312)

305

(340)

51

WFF.0

125, 160, 200

76

WKF.0

250, 315, 355, 400

XRNM1-7.2

WFF.0

7.2

12

25, 31.5, 40, 50, 63, 80, 100, 125, 160

486

(500)

403

(461)

454

(150)

76

WKN.0

200, 224, 250, 315

Note: 1.The aboveid rated parameters for single pipe,the fuses can be parallel connected by fixed structure to geta high rated current.
          2.Sizes in the bracket are for inserting fuses.

high voltage limt gurrent fuse for protection of electrical motor 2

◆Basic parameters

Type

Rated voltage UN (Kv)

Rated current IN (A)

Diameter×length (mm)

A (mm)

C(mm)

Rated breaking current KA

Foreign reference model

XRNM1

3.6

50

Φ51X254 Standard size

337

305

63

WDFHO

63

80

100

125

160

Φ76X254 Standard size

WKFHO

200

224

50

250

315

355

400

7.2

25

Φ76X403 Standard size

486

454

63

WFNHO

31.5

40

50

63

80

100

125

160

200

50

WKNHO

224

250

Φ76X403

Φ88X403

315

12

25

Φ76X403 Standard size

486

454

63

 

31.5

40

50

63

80

100

125

160

50

200

224

high voltage limt gurrent fuse for protection of electrical motor 3high voltage limt gurrent fuse for protection of electrical motor 4high voltage limt gurrent fuse for protection of electrical motor 5high voltage limt gurrent fuse for protection of electrical motor 6high voltage limt gurrent fuse for protection of electrical motor 7high voltage limt gurrent fuse for protection of electrical motor 8high voltage limt gurrent fuse for protection of electrical motor 9high voltage limt gurrent fuse for protection of electrical motor 10high voltage limt gurrent fuse for protection of electrical motor 11

Basic parameters: Table 1, Table 2

Table 1

Type

Rated voltage (kv)

Fuse rated current (A)

Rated maximum breaking current (kA)

WDL*J

7.2

25, 31.5, 40, 50, 63

50

12

WFL*J

7.2

50, 63, 80, 100

12

WKL*J

7.2

125, 160

12

WXL*J

7.2

160, 200, 224, 250, 315

12

160, 200

Table 2

Type

Rated voltage (kv)

Fuse rated current (A)

Rated maximum breaking current (kA)

WFM*J

7.2

25, 31.5, 40, 50, 63, 80, 100, 125, 160

50

12

25, 31.5, 40, 50, 63, 80, 100

WKM*J

7.2

200, 224, 250, 315

12

125, 160

WXM*J

7.2

 

12

200, 224

high voltage limt gurrent fuse for protection of electrical motor 12high voltage limt gurrent fuse for protection of electrical motor 13 high voltage limt gurrent fuse for protection of electrical motor 14 high voltage limt gurrent fuse for protection of electrical motor 15high voltage limt gurrent fuse for protection of electrical motor 16 high voltage limt gurrent fuse for protection of electrical motor 17 high voltage limt gurrent fuse for protection of electrical motor 18

 

The high-voltage fuse signal indicating device is connected to the high-voltage fuse, and the micro switch on it can monitor the working state of the high-voltage fuse. Using insulated flexible and bendable transmission device, the movement of the fuse striker is transmitted to the micro switch. The micro switch has a pair of AC 25VI5A-normally open and normally closed switching contacts.
The striker end of the device can be installed with a high-voltage spring clamp contact on the connecting plate 1, and the screw hole of this accessory is directly matched with the screw hole of the spring clamp contact of the high-voltage fuse, without additional drilling. The connecting plate 2 can also be used, the high-voltage fuse does not need any changes, regardless of the plug-in or bus-type wiring can be directly connected. The micro switch end can be installed within the maximum range of 500mm from the fuse according to the power supply voltage of the high-voltage fuse. In addition, two M5 mounting screw holes are required on the bottom plate or other installation positions.

high voltage limt gurrent fuse for protection of electrical motor 19

According to user needs, provide other wiring forms

high voltage limt gurrent fuse for protection of electrical motor 20

high voltage limt gurrent fuse for protection of electrical motor 21

Table 1

Type

Rated voltage (kv)

Fuse rated current (A)

Rated maximum breaking current (kA)

WFN*J

7.2

25, 31.5, 40, 50, 63, 80, 100, 125, 160

50

12

25, 31.5, 40, 50, 63, 80, 100

WKN*J

7.2

200, 224, 250, 315

12

125, 160

WXZ*J

7.2

 

12

200

 

Table 2

Type

Rated voltage (kv)

Fuse rated current (A)

Rated maximum breaking current (kA)

WFZ*J

7.2

25, 31.5, 40, 50, 63, 80, 100, 125, 160

50

12

25, 31.5, 40, 50, 63, 80, 100

WKZ*J

7.2

200, 224, 250, 315

12

125, 160

WXZ*J

7.2

 

12

200

 

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