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Your contact: +49 - 212 8804-0 • info@reo.de

CNW 891

Single-phase DC-link choke (1 lines)

CNW 891

Unique Selling Point


  • Reduction of harmonics
  • Attenuation of current spikes of up to 70%
  • Compact design
  • Advantages over the mains choke:
    • Smaller size
    • Lower cost of materials / Price
    • Smaller power loss
  • Production according to UL insulation system 
    E251513 possible

Description


Power Noise Reduction - save energy costs. 

The DC-link choke is used for smoothing the DC link current and to reduce mains harmonics in voltage source inverters.

The typical combinations of rectifiers and capacitors strains the supply network significantly. For functional reasons, the current consumption of the power supply or the inverter is not sinusoidal but pulsed at the moment of maximum voltage. DC-link chokes reduce the harmonics and relieve the supply network similar to the mains choke. In addition, the DC-link choke attenuates charging current peakssurges of the DC-link capacitors. By using a DC-link choke the supply network is less burdened with harmonic reactive power.

Improvement of the efficiency of a converter (Power Factor Correction). Starting currents and current peak are attenuated up to 70%. Mains chokes help to comply with international power quality standards IEEE 519 or EN 61000-3-2.

  • Rated voltage: U ≤ 600 V
  • According to: EN 60289 / EN 61558
  • Test voltage: L-PE 4000 V, AC/50Hz, 60s
  • Insulation class: T40/F
  • Protection rating: IP00
  • Climatic categorie: DIN IEC 60068-1
  • Overload: 1,5 x INenn 1 min / h
  • Design: standing on foot angle

 

Typical applications

  • Drive systems for motor drives:
    • Mechanical engineering
    • Elevators / escalators
    • Pipes
    • Conveyor technology
    • Ventilation and air conditioning
    • Robotics
    • Automation technology
  • Power supplies
  • Wind turbines

Technical Data


  • Nominal Voltage : 600 V
  • Rated current : 8 - 100 A
  • Inductance : 0,67 - 9,4 mH

Circuit example

Your contact: +49 - 212 8804-0 • info@reo.de

CNW 891

Single-phase DC-link choke (1 lines)

Technical data

Type

Rated voltage
[V]

Rated current
[A]

Inductance
[mH]

Rated power
[kW]

Power loss 
[W]

Copper 
[kg]

Weight
[kg]

CNW 891 / 8

600 VDC

8

9,4

3,7

15

0,4

1,4

CNW 891 / 11

11

6,2

5,5

20

0,5

2,0

CNW 891 / 15

15

4,8

7,5

23

0,7

2,3

CNW 891 / 20

20

3,3

11

28

0,8

3,6

CNW 891 / 28

28

2,4

15

35

1,1

4,6

CNW 891 / 34

34

2,0

18,5

40

1,3

5,2

CNW 891 / 40

40

1,6

22

43

1,5

6,9

CNW 891 / 55

55

1,2

30

45

2,3

7,8

CNW 891 / 70

70

0,98

37

50

2,5

10,1

CNW 891 / 85

85

0,81

45

53

2,9

13,6

CNW 891 / 100

100

0,67

55

65

4,4

15,9

Higher power ratings on request 

Your contact: +49 - 212 8804-0 • info@reo.de

CNW 891

Single-phase DC-link choke (1 lines)

Dimension drawings

Version with cable lugs

Version with copper bar

 

Dimensions

Type

Version

Dimensions

Connection

 

 

L
[mm]

B
[mm]

H
[mm]

N1
[mm]

N2
[mm]

D1
[mm]

A1
[mm]



CNW 891 / 8

Cable lugs

85

79

76

64

44

4,8 x 9

25

M4 x 2,5

CNW 891 / 11

Cable lugs

85

95

76

64

59

4,8 x 9

25

M4 x 2,5

CNW 891 / 15

Cable lugs

96

78

88

84

62

5,8 x 11

30

M4 x 4,0

CNW 891 / 20

Cable lugs

96

102

88

84

84

5,8 x 11

30

M4 x 4,0

CNW 891 / 28

Cable lugs

105

103

95

84

85

5,8 x 11

35

M5 x 10

CNW 891 / 34

Cable lugs

120

101

108

90

84

5,8 x 11

35

M5 x 16

CNW 891 / 40

Cable lugs

120

120

108

90

103

5,8 x 11

35

M6 x 16

CNW 891 / 55

Cable lugs

150

106

134

122

86

7 x 13

40

M6 x 25

CNW 891 / 70

Cable lugs

150

123

134

122

103

7 x 13

40

M8 x 35

CNW 891 / 85

Copper bar

150

149

134

122

129

7 x 13

40

M8

CNW 891 / 100

Copper bar

174

108

152

135

128

7 x 13

40

M8