multict CTB

Bushing type current transformers - screwless connection technology

Measure, Current transformer

multict CTB

The current transformers from the multict CTB series are the first current transformers in the world with the “Cage Clamp®” screwless connection technology.

 

Maintenance-free

The screwless connection technology with spring terminal makes connections gas-tight and maintenance-free. Thanks to the strong retaining forces, the current transformer can be used even in conditions of high mechanical stress (e.g. vibrations).

The spring terminal is designed for solid and f lexible conductors up to a max. of 4 mm². This eliminates the need for ferrules.

The current transformers are also UL-certified. With optional accessories, assembly can be made even easier.

 

Description

Bushing type current transformers for primary rated currents between 50 A and 2,500 A.

Secondary rated current 1 A or 5 A, in accuracy classes 0.2s or 0.2, 0.5s, 0.5, 1, 3.

 

Application

Installation in distribution measurements. Maintenance-free thanks to screwless connection technology.

Highlights
Technical Data
More information

Bushing type current transformer with screwless “Cage Clamp®” connection technology, UL-certified.

 

  • “Cage Clamp®” screwless connection technology
  • Shock- and vibration-resistant
  • UL-certified
  • Low-voltage current transformers for max. operating voltages up to 1.2 kV, can be used in 690 V networks
  • Accuracy class 0,5 and 1
Maximum operating voltage Um 1.2 kV
Rated continuous thermal current Icth 1.2 x In
Rated short-time thermal current Ith 60 x In , 1 sek (max. 100 kA)
Rated surge current Idyn 2.5 x Ith
Overcurrent limiting factor FS 5 bzw. FS 10
Rated frequency 50 (60) Hz (16 2/3 bis 400 Hz by request)
Insulation class E
Insulation test voltages 6 kV, 1 min, Ueff , 50 Hz (Um ≤ 1.2 kV)
Working temperature range –5 °C ≤ T ≤ +50 °C
Storage temperature range –25 °C ≤ T ≤ +70 °C
Applied norms DIN EN 61869/1+2, DIN 42600-1, DIN 42600-2
Unbreakable plastic housing made of polycarbonate
Flame-resistant and self-extinguishing in accordance with UL94-V0
Nickel-plated secondary clamps with plus/minus screws (2 Nm)

Schraubenlose Anschlusstechnik dank Federzugklemme „Cage Clamp®“

 

CAUTION: If a cable lug is already pressed on the cable, it must be considered when determining the window size of the transformer.

Fittingly:
Gruppenbild der multimess Energiemessgeräte

KBR
Support Team

We are happy to arrange
the contact to our
references and are available for
available for an interview.

Just get in touch with us.
Phone: +49 9122 6373-0
E-mail: info@kbr.de