SGLZ manual transfer switch electrical changeover switch

Code:SGLZ Cable Size: Description:SGLZ-125A~1600A.The load isolation switch is suitable for the change-over of two sets of low voltage electric circuit or the chang-over of 2 set of load devices or safety isolation.
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SGLZ-125A~1600A change over load isolation switch
   SGLZ-125A~1600A.The load isolation switch is suitable for the change-over of two sets of low voltage electric circuit or the chang-over of 2 set of load devices or safety isolation.
   Mode of operation:
   Direct operation:handle is installed on the switch.
   Operation outside the board:handle is installed outside the door of power distributing board.
   Products with observation windows can be provided according to the demand to obsvrve directly the ON and OFF state of contact.
   The products have three poles,four poles,and(three pole+ON and OFF neural pole).
   Extended shate is used for ther operation outside the board.
   Two sets of auxiliary contacts can be assembled according to the demand.
   Mechanical performance and electric property correspond to the mechanical performance and elextric property of SGL-125A-1600A.
   A bridge can provided to connect the inlet or outlet terminal of the switch.
   Note:The bridge connection is chosen,an explanation is needed to indicate ther indicate the inlet or outlet connected with it. 

The characterisitc(conforms to the GB14048.3-2002/IEC60947-3 standard)

Conventional thermal current lth A(40℃)

125A

160A

200A

250A

400A

630A

Rated impulse withstand voltage Ui(V)

800

800

800

800

800

1000

Rated striling voltage Uimp(KV)

8

8

8

8

8

12

Rated operation currentel(A)

 

 

 

 

 

 

Rated voltage

overload type

A/B(1)

A/B(1)

A/B(1)

A/B(1)

A/B(1)

A/B(1)

400VAC

AC-21A/AC-21B

125/125

160/160

200/200

250/250

400/400

630/630

AC-22A/AC-22B

125/125

160/160

200/200

250/250

400/400

630/630

AC-23A/AC-23B

125/125

160/160

160/160

250/250

250/250

500/600

690VAC(2)

AC-20A/AC-20B

125/125

160/160

200/200

250/250

400/400

630/630

AC-21A/AC-21B

125/125

160/160

160/160

200/250

200/250

500/500

AC-22A/AC-22B

125/125

125/125

125/125

125/160

125/160

315/315

AC-23A/AC-23B

63/80

63/80

63/80

100/125

100/125

160/200

220VDC

DC-20A/DC-20B

125/125

125/125

200/200

250/250

400/400

630/630

DC-21A/DC-21B

125/125

125/125

160/160

250/250

250/250

630/630

DC-22A/DC-22B

125/125

1, 25/125

160/160

250/250

250/250

500/500

DC-23A/DC-23B

125/125

125/125

125/125

200/200

200/200

500/500

440VDC

DC-20A/DC-20B

125/125

125/125

200/200

250/250

400/400

630/630

DC-21A/DC-21B

125/125

125/125

125/125

200/200

200/200

500/500

DC-22A/DC-22B

125/125

125/125

125/125

200/200

200/200

500/500

DC-23A/DC-23B

125(3)/80

125(3)/80

125(3)/125(3)

200(3)/200(3)

200(3)/200(3)

500(3)/500(3)

operation power

No break down under 400VAC

63/63

80/80

80/80

132/132

132/132

280/280

No break down under 690VAC

55/75

55/75

55/75

90/110

90/110

150/185

Reactive power

400VAC (kvar)

55

75

90

115

185

290

Uses the fuse short-circuit current condition(the Karms required value)

required short-circuit current value

100

100

50

50

8

70

Fuse Capacity

125

160

200

250

400

630

Short-circuit capability

lcw(KArms)Allowed short time endure current

7

7

7

9

9

13

Short-cicuit dynamic intensity

20

20

20

30

30

45

Connection

Minimal copper cable section

35

50

50

95

185

2×150

Minimal copper row width

 

 

 

 

 

2×30×5

Maximal copper cable section

50

95

95

150

240

2×300

Maximal copper row width

25

25

25

32

32

50

Minimal tighten wrest distance

9

9

9

20

20

20

Machanism Characteristic

Life(operation cycle times)

10000

10000

10000

10000

10000

5000

3pole switch weight(kg)

1.5

1.6

1.8

2

3

3.5

4pole switch weight(kg)

1.6

1.7

1.9

2.1

3.5

4

 

Conventional thermal current lth A(40℃)

800A

1250A

1600A

1800A

2000A

2500A

3150A

Rated impulse withstand voltage Ui(V)

1000

1000

1000

1000

1000

1000

1000

Rated striling voltage Uimp(KV)

12

12

12

12

12

12

12

Rated operation currentel(A)

 

 

 

 

 

 

 

Rated voltage

overload type

A/B(1)

A/B(1)

A/B(1)

A/B(1)

A/B(1)

A/B(1)

A/B(1)

400VAC

AC-21A/AC-21B

800/800

1250/1250

1600/1600

1800/1800

2000/2000

2500/2500

3150/3150

AC-22A/AC-22B

800/800

1250/1250

1600/1600

1800/1800

2000/2000

2000/2500

2500/2500

AC-23A/AC-23B

800/800

1250/1250

1250/1250

1250/1250

1250/1250

1250/1250

1250/1250

690VAC(2)

AC-20A/AC-20B

800/800

1250/1250

1600/1600

1800/1800

2000/2000

2500/2500

3150/3150

AC-21A/AC-21B

800/800

800/800

1000/1000

1000/1000

2000/2000

2000/2500

2000/2500

AC-22A/AC-22B

800/800

200/500

1000/1000

1000/1000

1000/1000

1000/1000

1000/1000

AC-23A/AC-23B

200/250

1250/1250

500/500

500/500

800/800

800/800

800/800

220VDC

DC-20A/DC-20B

800/800

1250/1250

1600/1600

1800/1800

2000/2000

2500/2500

3150/3150

DC-21A/DC-21B

800/800

1250/1250

1250/1250

1250/1250

2000/2000

2000/2500

2000/2500

DC-22A/DC-22B

800/800

1250/1250

1250/1250

1250/1250

1250/1600

1250/1600

1250/1600

DC-23A/DC-23B

800/800

1250/1250

1250/1250

1250/1250

1250(3)/1250(3)

1250(3)/1250(3)

1250(3)/1250(3)

440VDC

DC-20A/DC-20B

800/800

1250(3)/1250(3)

1600/1600

1600/1600

2000/2000

2000/2000

3150/3150

DC-21A/DC-21B

800/800

1250(3)/1250(3)

1250(3)/1250(3)

1250(3)/1250(3)

1250/1250

1250/1250

1250/1250

DC-22A/DC-22B

800/800

1250(3)/1250(3)

1250(3)/1250(3)

1250(3)/1250(3)

1250(3)/1250(3)

1250(3)/1250(3)

1250(3)/1250(3)

DC-23A/DC-23B

800(3)/800(3)

1250(3)/1250(3)

1250(3)/1250(3)

1250(3)/1250(3)

1000(3)/1000(3)

1000(3)/1000(3)

1000(3)/1000(3)

operation power

No break down under 400VAC

450/450

710/710

710/710

710/710

710/710

710/710

710/710

No break down under 690VAC

185/220

185/220

475/475

475/475

750/750

750/750

750/750

Reactive power

400VAC (kvar)

365

575

-

-

-

-

-

Uses the fuse short-circuit current condition(the Karms required value)

required short-circuit current value

50

100

100

100

100

100

100

Fuse Capacity

800

1250

2×800

2×800

2×1000

2×1000

 

Short-circuit capability

Allowed short time endure current

26

35

50

50,

50

50

55

Short-cicuit dynamic intensity

55

80

110

110

110

110

120

Connection

Minimal copper cable section

2×185

 

 

 

 

 

 

Minimal copper row width

2×40×5

2×60×5

2×80×5

2×80×5

3×100×5

4×100×5

4×100×5

Maximal copper cable section

2×300

4×185

6×185

6×185

 

 

 

Maximal copper row width

63

63

100

100

125

125

125

Minimal tighten wrest distance

 

 

40

40

40

40

40

Machanism Characteristic

Life(operation cycle times)

3000

3000

4000

4000

3000

3500

2500

3pole switch weight(kg)

17.5

22.5

34

34

70

72

98

4pole switch weight(kg)

21

27.5

42

42

85

88

110

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