December 07, 2023

Weak current project UPS power cable open configuration table, save for future use!

ForewordHi everyone, I'm Mr. Lin, how to choose circuit breaker and wire diameter of UPS power supply? Today I will share how to choose an air breaker and cable for different types of UPS power supplies and save them for future use! Text1-2, three inputs and three outputs (50 knots, 600 VDC)

1-2-1, (160-600 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Maximum battery current, A

Enter air switch A

Output switch A

Battery switch A

160 kVA

600 VDC

272

242

249

250/3P

250/3P

250/3P

200 kVA

600 VDC

340

303

311

400/3P

320/3P

320/3P

250 ​​kVA

600 VDC

425

379

389

500/3P

400/3P

400/3P

300 kVA

600 VDC

510

454

466

630/3P

500/3P

500/3P

400 kVA

600 VDC

680

606

622

800/3P

630/3P

630/3P

500 kVA

600 VDC

850

758

777

1000/3P

800/3P

800/3P

600 kVA

600 VDC

1020

909

915

1250/3P

1000/3P

1000/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 600 V DC;

1-2-2, (160-600 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable

mm2

Neutral line mm2

Earth wire mm2

160 kVA

50

50

70

50

25

200 kVA

70

70

95

70

35

250 ​​kVA

70

70

120

70

35

300 kVA

95

95

150 (70*2)

95

50

400 kVA

120

120

240 (120*2)

120

70

500 kVA

150

150

300 (150*2)

150

70

600 kVA

185

185

350 (185*2)

185

95

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line dlonger, use a cable with a larger cross-sectional area (contact technical support for details) to ensure line voltage drop is less than 3% (AC) or 1% (DC). ;

For UPS 300kVA and above, 2-3 battery cables must be connected in parallel.

1-3, three out of three high frequency series (40 knots, 480 VDC)

1-3-1, (30-120 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Maximum battery current, A

Enter air switch A

Output switch A

Battery switch A

30 kVA

480 VDC

48

45

60

63/3P

63/3P

80/3P

40 kVA

480 VDC

64

61

80

100/3P

100/3P

100/3P

50 kVA

480 VDC

80

76

100

100/3P

100/3P

125/3P

60 kVA

480 VDC

96

91

120

125/3P

125/3P

160/3P

80 kVA

480 VDC

128

121

160

160/3P

160/3P

200/3P

90 kVA

480 VDC

144

136

180

160/3P

160/3P

200/3P

100 kVA

480 VDC

160

152

200

250/3P

250/3P

250/3P

120 kVA

480 VDC

191

182

240

250/3P

250/3P

320/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 480 V DC;

1-3-2, (30-120 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

30 kVA

16

16

25

16

10

40 kVA

16

16

35

16

10

50 kVA

25

25

35

25

16

60 kVA

25

25

50

25

16

80 kVA

35

35

50

35

16

90 kVA

35

35

70

35

25

100 kVA

50

50

70

50

25

120 kVA

70

70

95

70

35

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account increase in temperaturetemperatures and lines up to a pressure drop of up to 15 meters (AC circuit) or 10 meters (DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) so that line voltage drop is less than 3% (AC) or 1% (DC).

1-4, high-frequency three-in-three-out series (32 knots ±192 VDC)

1-4-1, (10-60 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Maximum battery current, A

Enter air switch A

Output switch A

Battery switch A

10 kVA

384 VDC

16

15

25

32/3P

32/3P

32/3P

20 kVA

384 VDC

32

30

50

63/3P

63/3P

63/3P

30 kVA

384 VDC

48

45

75

100/3P

100/3P

100/3P

40 kVA

384 VDC

64

61

100

100/3P

100/3P

125/3P

50 kVA

384 VDC

80

76

125

125/3P

125/3P

160/3P

60 kVA

384 VDC

96

91

150

125/3P

125/3P

200/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 384 VDC.

Cable configuration 1-4-2 (10-60 kVA)

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

10 kVA

6

6

10

6

6

20 kVA

10

10

16

10

6

30 kVA

16

16

25

16

10

40 kVA

16

16

35

16

10

50 kVA

25

25

35

25

16

60 kVA

25

25

50

25

16

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) so that line voltage drop is less than 3% (AC) or 1% (DC).

1–5, one-on-one series

1-5-1, (6-20 kVA), open configuration

Power

Battery

Voltage

Input current A

Output

Current A

Maximum battery current, A

Enter

Open A

Output

Open A

Battery

Open A

6 kVA

240 VDC

30

27

25

32/2P

32/2P

32/2P

10 kVA

240 VDC

48

45

38

63/2P

63/2P

63/2P

10 kVA 3/1

240 VDC

17

45

43

63/2P

63/2P

63/2P

15 kVA 3/1

240 VDC

28

68

65

100/3P

100/3P

100/3P

20 kVA 3/1

240 VDC

35

91

85

125/3P

125/3P

125/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 240V DC.

Cable configuration 1-5-2 (6-20 kVA)

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

Notes

6 kVA

10

10

6

10

6

10 kVA

16

16

10

16

10

10 kVA 3/1

16

16

16

16

10

15 kVA 3/1

16

16

16

16

10

20 kVA 3/1

25

25

25

25

10

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) to ensure that line voltage drop is less than 3% (AC) or 1% (DC). ;

2-2 Power Frequency Three-In-Three-Out Series (29 knots, 348 VDC)

2-2-1, 10-400 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Maximum battery current, A

Enter air switch A

Output switch A

Battery switch A

10 kVA

348 VDC

28

15

28

32/3P

32/3P

32/3P

20 kVA

348 V permanentcurrent

37

30

55

63/3P

63/3P

63/3P

30 kVA

348 VDC

56

45

83

80/3P

80/3P

100/3P

40 kVA

348 VDC

75

61

110

100/3P

100/3P

125/3P

50 kVA

348 VDC

94

76

138

100/3P

100/3P

160/3P

60 kVA

348 VDC

112

91

166

125/3P

125/3P

200/3P

80 kVA

348 VDC

150

121

221

160/3P

160/3P

250/3P

100 kVA

348 VDC

187

152

276

250/3P

250/3P

320/3P

120 kVA

348 VDC

225

182

331

250/3P

250/3P

320/3P

160 kVA

348 VDC

300

242

442

320/3P

250/3P

500/3P

200 kVA

348 VDC

374

303

552

400/3P

400/3P

630/3P

250 ​​kVA

348 VDC

468

379

690

500/3P

500/3P

800/3P

300 kVA

348 VDC

561

455

828

630/3P

500/3P

800/3P

400 kVA

348 VDC

748

606

1105

800/3P

630/3P

1250/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 348V DC.

2-2-2, (10-400 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

10 kVA

10

10

10

10

10

20 kVA

16

16

16

16

10

30 kVA

16

16

25

16

10

40 kVA

25

25

35

25

16

50 kVA

25

25

35

25

16

60 kVA

35

35

50

35

16

80 kVA

35

35

50

35

16

100 kVA

50

50

70

50

25

120 kVA

70

70

95

70

35

160 kVA

95

95

95

95

50

200 kVA

95

95

150(70*2)

95

50

250 ​​kVA

120

120

185(95*2)

120

70

300 kVA

185

185

240(120*2)

185

95

400 kVA

240

240

480(240*2)

240

120

Note.

lRealcable diameter should not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) so that line voltage drop is less than 3% (AC) or 1% (DC).

2-3 Power Frequency Three-In-Three-Out Series (30 knots, 360 VDC)

2-3-1, (10-60 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Maximum battery current, A

Enter air switch A

Output switch A

Battery switch A

10 kVA

360 VDC

28

15

27

32/3P

32/3P

32/3P

20 kVA

360 VDC

37

30

54

63/3P

63/3P

63/3P

30 kVA

360 VDC

56

45

80

80/3P

80/3P

100/3P

40 kVA

360 VDC

75

61

107

100/3P

100/3P

125/3P

50 kVA

360 VDC

94

76

134

100/3P

100/3P

160/3P

60 kVA

360 VDC

112

91

160

125/3P

125/3P

200/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 360V DC.

2-3-2, (10-60 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

10 kVA

10

10

10

10

6

20 kVA

16

16

16

16

10

30 kVA

16

16

25

16

10

40 kVA

25

25

35

25

16

50 kVA

25

25

35

25

16

60 kVA

35

35

50

35

16

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or10 meters (DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) to ensure that line voltage drop is less than 3% (AC) or 1% (DC). ;

2-4, one input, one output, power frequency series

2-4-1, (4-40 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Maximum battery current, A

Enter air switch A

Output switch A

Battery switch A

4 kVA

192 VDC

20

18

21

32/2P

32/2P

32/2P

6 kVA

192 VDC

30

27

32

32/2P

32/2P

40/2P

8 kVA

192 VDC

40

36

42

63/2P

63/2P

63/2P

10 kVA

192 VDC

50

45

53

63/2P

63/2P

63/2P

10 kVA 3/1

192 VDC

17

45

53

63/3P

63/2P

63/2P

15 kVA 3/1

192 VDC

25

68

78

100/3P

100/3P

100/3P

20 kVA 3/1

192 VDC

34

91

104

100/3P

100/3P

125/3P

25 kVA 3/1

192 VDC

42

114

128

125/3P

125/3P

160/3P

30 kVA 3/1

192 VDC

51

136

155

160/3P

160/3P

160/3P

40 kVA 3/1

192 VDC

67

182

205

200/3P

200/3P

200/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 192 V DC.

2-4-2, (4-40 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

Notes

4 kVA

6

6

6

6

6

6 kVA

6

6

10

6

6

8 kVA

10

10

10

10

6

10 kVA

10

10

10

10

6

10 kVA 3/1

16

16

10

16

6

15 kVA 3/1

16

16

16

16

6

20 kVA 3/1

25

25

25

25

10

25 kVA 3/1

35

35

35

35

10

30 kVA 3/1

35

35

50

35

10

40 kVA 3/1

50

50

70

50

10

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) to ensure that line voltage drop is less than 3% (AC) or 1% (DC). ;

2-5, three inputs and one output of power frequency series

2-5-1, (4-40 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Maximum battery current, A

Enter air switch A

Output switch A

Battery switch A

6 kVA

360 VDC

30

27

17

32/2P

32/2P

32/2P

10 kVA

360 VDC

50

45

28

63/2P

63/2P

63/2P

10 kVA 3/1

360 VDC

17

45

28

63/3P

63/2P

63/2P

15 kVA 3/1

360 VDC

25

68

42

100/3P

100/3P

100/3P

20 kVA 3/1

360 VDC

34

91

56

100/3P

100/3P

125/3P

30 kVA 3/1

360 VDC

50

136

85

160/3P

160/3P

160/3P

40 kVA 3/1

360 VDC

67

182

113

200/3P

200/3P

160/3P

50 kVA 3/1

360 VDC

84

227

141

250/3P

250/3P

200/3P

60 kVA 3/1

360 VDC

101

272

169

320/3P

320/3P

200/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 360V DC.

2-5-2, (4-40 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

Notes

6 kVA

6

6

6

6

6

10 kVA

10

10

10

10

6

10 kVA 3/1

10

10

10

10

6

15 kVA 3/1

10

16

10

16

6

20 kVA 3/1

25

25

16

25

16

30 kVA 3/1

35

35

25

35

16

40 kVA 3/1

50

50

35

50

25

50 kVA 3/1

70

70

50

70

35

60 kVA 3/1

95

95

50

95

50

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) to ensure that line voltage drop is less than 3% (AC) or 1% (DC). ;

2–6. Power frequency series with one input and one output

2-6-1, (1-30 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Battery current, A

Enter air switch A

Output switch A

Battery switch A

1 kVA

48 VDC

6

5

21

10/2P

10/2P

25/2P

2 kVA

48 VDC

11

9

42

25/2P

16/2P

63/2P

3 kVA

48 VDC

17

14

64

25/2P

16/2P

63/2P

4 kVA

192 VDC

23

18

21

25/2P

25/2P

25/2P

6 kVA

192 VDC

30

27

32

63/2P

63/2P

63/2P

8 kVA

192 VDC

45

36

42

100/3P

100/3P

100/3P

10 kVA

192 VDC

50

45

53

100/3P

100/3P

100/3P

10 kVA 3/1

192 VDC

17

45

53

100/3P

100/3P

100/3P

15 kVA 3/1

192 VDC

25

68

79

100/3P

100/3P

100/3P

20 kVA 3/1

192 VDC

34

91

106

125/3P

125/3P

125/3P

30 kVA 3/1

192 VDC

50

136

159

160/3P

160/3P

160/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 192 V DC.

2-6-2, (1-30 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutrali line mm2

Earth wire mm2

Notes

1 kVA

2.5

2.5

6

2.5

2.5

2 kVA

2.5

2.5

10

2.5

2.5

3 kVA

4

4

16

4

4

4 kVA

6

6

6

6

4

6 kVA

6

6

6

6

6

8 kVA

10

10

10

10

6

10 kVA

10

10

10

10

6

10 kVA 3/1

10

10

10

10

6

15 kVA 3/1

16

16

16

16

10

20 kVA 3/1

25

25

25

25

16

30 kVA 3/1

35

35

35

35

16

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) to ensure that line voltage drop is less than 3% (AC) or 1% (DC). ;

3-2. Modular series with three inputs and three outputs

3-2-1, (10-200 kVA) air switch configuration

Power

Battery

Voltage

Input current A

Output current A

Battery current, A

Enter air switch A

Output switch A

Battery switch A

10 kVA

768 V DC

16

15

13

25/3P

16/3P

16/3P

20 kVA

768 V DC

32

30

25

63/3P

32/3P

25/3P

30 kVA

768 V DC

48

45

38

63/3P

63/3P

63/3P

40 kVA

768 V DC

64

61

50

100/3P

63/3P

63/3P

50 kVA

768 V DC

80

76

63

100/3P

100/3P

63/3P

60 kVA

768 V DC

96

91

75

100/3P

100/3P

100/3P

70 kVA

768 V DC

112

106

88

125/3P

125/3P

100/3P

80 kVA

768 V DC

128

121

100

160/3P

125/3P

125/3P

90 kVA

768 V DC

144

136

113

160/3P

160/3P

125/3P

100 kVA

768 VDC

159

151

125

160/3P

160/3P

125/3P

110 kVA

768 V DC

175

167

138

200/3P

160/3P

160/3P

120 kVA

768 V DC

191

182

150

200/3P

200/3P

160/3P

130 kVA

768 V DC

207

197

163

250/3P

200/3P

160/3P

140 kVA

768 V DC

223

212

175

250/3P

250/3P

200/3P

150 kVA

768 VDC

239

227

188

250/3P

250/3P

200/3P

160 kVA

768 V DC

255

242

201

250/3P

250/3P

200/3P

170 kVA

768 V DC

271

258

213

320/3P

250/3P

250/3P

180 kVA

768 V DC

287

273

226

320/3P

320/3P

250/3P

190 kVA

768 V DC

303

288

238

320/3P

320/3P

250/3P

200 kVA

768 VDC

319

303

251

320/3P

320/3P

250/3P

Note.

lThe actual switching capacity must not be less than switching capacity indicated in table;

l The rated DC operating voltage of battery breaker must not be lower than 768 VDC.

3-2-2, (10-200 kVA) cable configuration

Power

Input cable mm2

Output cable mm2

Battery cable mm2

Neutral line mm2

Earth wire mm2

Notes

10 kVA

6

6

6

6

6

20 kVA

10

10

10

10

6

30 kVA

10

10

10

10

6

40 kVA

16

16

16

16

10

50 kVA

25

25

16

25

10

60 kVA

25

25

25

25

10

70 kVA

25

25

25

25

10

80 kVA

35

35

25

35

16

90 kVA

35

35

35

35

16

100 kVA

50

50

50

50

25

110 kVA

50

50

50

50

25

120 kVA

70

70

50

70

35

130 kVA

70

70

70

70

35

140 kVA

70

70

70

70

35

150 kVA

70

70

70

70

35

160 kVA

70

70

70

70

35

170 kVA

95

95

70

95

35

180 kVA

95

95

95

95

35

190 kVA

95

95

95

95

35

200kVA

95

95

95

95

35

Note.

lThe actual cable diameter must not be less than diameter indicated in table;

lThe cross-sectional area of ​​the cable is calculated based on a cable with a copper core (if using a cable with an aluminum core, it must be increased by 30%), taking into account temperature increase and line up to a pressure drop of up to 15 meters (AC circuit) or 10 meters ( DC circuit). If line is longer, use a cable with a larger cross-sectional area (contact technical support for details) to ensure that line voltage drop is less than 3% (AC) or 1% (DC). ;

A special note. Considering future expansion of capacity, cable and air switch configuration of modular UPS is usually configured according to maximum power of cabinet.

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