Foldable cable type current transformers multict KBU
Current transformer with divisible measuring core for primary rated currents from 100 A to 5000 A, secondary rated current 5 A or 1 A, in accuracy classes 0.5, 1 and 3.
The divisible measuring system enables easy retrofitting in existing systems with minimum installation effort.
For installation, the locking mechanism on the transformer is opened, placed around the primary conductor and audibly engaged again. After connecting the secondary conductors, the measuring arrangement is ready for operation immediately.
Dimensions:
KBU 23 | Rail 1: 20 x 30 mm Round conductor: 20 mm Width: 93 mm |
Current range: 100 … 400 A |
KBU 58 | Rail 1: 50 x 80 mm Round conductor:50 mm Width: 125 mm |
Current range: 250 … 1000 A |
KBU 812 | Rail 1: 80 x 120 mm Round conductor:80 mm Width: 155 mm |
Current range: 250 … 1500 A |
KBU 816 | Rail 1: 80 x 160 mm Round conductor:80 mm Width: 195mm |
Current range: 1000 … 5000 A |
Highlights
- Ideal for retrofitting in existing systems
- Straightforward and secure attachment – Current transformer engages audibly
- Available with secondary current 5 A/1 A
- Also available in accuracy class 0.5
- Four different designs
Technical data
Working temperature range: | -5 ºC < T < +40 ºC |
Storage temperature range: | -25 ºC < T < +70 ºC |
Therm. Rated continuous current ICTH: | 1,0 x IN |
Therm. Rated short-time current Ith: | 60 x IN, 1 Sek. |
Max. operating voltage Um: | 0,72 kV |
Insulation test voltage: | 3 kV, Ueff, 50 Hz, 1 Min. |
Rate frequency: | 50 Hz |
Insulation class: | E |
Applied technical standards: | DIN EN 61869, Teil 1 + 2 |
Typ | A (Width) mm |
B (Height) mm |
C / C1 (Depth) mm |
D mm |
E mm |
F mm |
G mm |
KBU 23 | 93 | 106 | 34 / 58 | 23 | 33 | 64 | 56 |
KBU 58 | 125 | 158 | 34 / 58 | 55 | 85 | 96 | 56 |
KBU 812 | 155 | 198 | 34 / 58 | 85 | 125 | 126 | 56 |
KBU 816 | 195 | 243 | 64 / 79 | 85 | 165 | 156 | 62 |
Order tables
Order table KBU 23
Dimensions: Rail 1, 20 x 30mm / Round conductor 20 mm ⁄ Width 93 mm ⁄ Hight 106 mm / Depth 58 mm
Secondary current | 5 A | |||
Primary current |
Rated power |
Accuracy class 3 |
Accuracy class 1 |
Accuracy class 0,5 |
[ A ] | [ VA ] | Item no. | Item no. | Item no. |
100 | 1,25 | 23064 | — | — |
150 | 1,5 | 23065 | — | — |
200 | 2,5 | 23066 | — | — |
250 | 1,5 | — | 23067 | — |
300 | 3,75 | — | 23068 | — |
400 | 1 | — | — | 23070 |
400 | 5 | — | 23069 | — |
Secondary current | 1 A | |||
Primary current |
Rated power |
Accuracy class 3 |
Accuracy class 1 |
Accuracy class 0,5 |
[ A ] | [ VA ] | Item no. | Item no. | Item no. |
100 | 1,25 | 23071 | — | — |
150 | 1,5 | 23072 | — | — |
200 | 2,5 | 23073 | — | — |
250 | 1,5 | — | 23074 | — |
300 | 3,75 | — | 23075 | — |
400 | 1 | — | — | 23077 |
400 | 5 | — | 23076 | — |
Order Table KBU 58
Dimensions: Rai 150 x 80 mm / Round conductor 50 mm ⁄ Width 125 mm ⁄ Hight 158 mm / Depth 58 mm
Secondary current | 5 A | 1 A | |||
Primary current |
Rated power |
Accuracy class 1 |
Accuracy class 0,5 |
Accuracy class 1 |
Accuracy class 0,5 |
[ A ] | [ VA ] | Item no. | Item no. | Item no. | Item no. |
250 | 1,5 | 12405 | — | 23084 | — |
300 | 2,5 | 12406 | — | 23085 | — |
400 | 1 | — | 23078 | — | 23092 |
400 | 2,5 | 12407 | — | 23086 | — |
500 | 2,5 | — | 23079 | — | 23093 |
500 | 5 | 12408 | — | 23087 | — |
600 | 2,5 | — | 23080 | — | 23094 |
600 | 5 | 12409 | — | 23088 | — |
750 | 2,5 | — | 23081 | — | 23095 |
750 | 5 | 12410 | — | 23089 | — |
800 | 2,5 | — | 23082 | — | 23096 |
800 | 7,5 | 12411 | — | 23090 | — |
1000 | 5 | — | 23083 | — | 23097 |
1000 | 10 | 12412 | — | 23091 | — |
Order Table KBU 812
Dimensions: Rail 1, 80 x 120 mm / Round conductor32,5 mm ⁄ Width 59,2 mm ⁄ Hight 96,4 mm / Depth 58 mm
Secondary current | 5 A | 1 A | |||
Primary current |
Rated power |
Accuracy class 1 |
Accuracy class 0,5 |
Accuracy class 1 |
Accuracy class 0,5 |
[ A ] | [ VA ] | Item no. | Item no. | Item no. | Item no. |
250 | 1,5 | 23098 | — | 23114 | — |
300 | 2,5 | 23099 | — | 23115 | — |
400 | 2,5 | 23100 | — | 23116 | — |
500 | 2,5 | — | 23106 | — | 23123 |
500 | 5 | 23101 | — | 23117 | — |
600 | 2,5 | 23107 | — | 23124 | |
600 | 5 | 23102 | — | 23118 | — |
750 | 2,5 | 23108 | — | 23125 | |
750 | 2 | 23103 | — | 23119 | — |
800 | 2,5 | — | 23109 | — | 23126 |
800 | 7,5 | 18893 | — | 21692 | — |
1000 | 5 | — | 23110 | — | 23127 |
1000 | 10 | 23104 | — | 23120 | — |
1200 | 5 | — | 23111 | — | 23128 |
1200 | 10 | 23105 | — | 21693 | — |
1250 | 7,5 | — | 23112 | — | 23129 |
1250 | 15 | 12413 | — | 23121 | — |
1500 | 7,5 | — | 23113 | — | 23130 |
1500 | 15 | 12414 | — | 23122 | — |
Order table KBU 816
Dimensions: Rail 1,80 x 160 mm / Round conductor 80 mm ⁄ Width 195 mm ⁄ Hight 243 / Depth gesamt 79 mm
Secondary current | 5 A | 1 A | |||
Primary current |
Rated power |
Accuracy class 31 |
Accuracy class 0,5 |
Accuracy class 1 |
Accuracy class 0,5 |
[ A ] | [ VA ] | Item no. | Item no. | Item no. | Item no. |
1000 | 10 | 23131 | 23148 | 23163 | 23180 |
1000 | 15 | 23132 | — | 23164 | — |
1200 | 10 | 23133 | 23149 | 23165 | 23181 |
1200 | 15 | 23134 | — | 23166 | — |
1500 | 10 | 23135 | 23150 | 23167 | 23182 |
1500 | 15 | 23136 | 23151 | 23168 | 23183 |
1600 | 10 | 23137 | 23152 | 23169 | 23184 |
1600 | 15 | 23138 | 23153 | 23170 | 23185 |
2000 | 10 | 23139 | 23154 | 23171 | 23186 |
2000 | 15 | 23140 | 23155 | 19478 | 23187 |
2500 | 10 | 23141 | 23156 | 23172 | 23188 |
2500 | 15 | 19353 | 23157 | 23173 | 23189 |
3000 | 15 | 23142 | 23158 | 23174 | 23190 |
3000 | 30 | 23143 | — | 23175 | — |
4000 | 15 | 23144 | 23159 | 23176 | 23191 |
4000 | 30 | 23145 | 23160 | 23177 | 23192 |
5000 | 15 | 23146 | 23161 | 23178 | 23193 |
5000 | 30 | 23147 | 23162 | 23179 | 23194 |