multict CTM7

Bushing type current transformer multict CTM7

Current transformer, Measure

multict CTM7

Bushing type current transformers in the multict CTM7 series are inductive single-wire current transformers that work according to the transformer principle. They serve to adjust the primary measuring parameters for the nominal input values of connected measuring devices.

Because of the measuring principle used, these current transformers are only suitable for use in AC networks.

 

Current transformers in the multict CTM7 series require no maintenance and are designed for primary rated currents between 32 A and 64 A with a secondary rated current of 1 A, in accuracy class 1.

 

Also suitable for use in data centers thanks to its low current consumption.

Can be installed directly on 3-phase circuit breaker (center-to-center distance: 17.5 mm).

 

Quick and easy assembly:

  • transformers L1 and L3 can be snapped onto the DIN rail with optional snap-on mounting
  • transformer L2 is plugged onto the other two transformers.

 

Application:

An affordable and compact alternative for setting up new systems.

Highlights
Technical Data

For installation in outgoing meters with limited installation space.

 

  • Maintenance-free
  • Primary rated current 32 A – 64 A
  • Secondary rated current 1 A
  • Accuracy class 1
Maximum operating voltage Um 0.72 kV
Rated continuous thermal current Icth 1.0 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
Rated frequency 50 (60) Hz (16 2/3 bis 400 Hz by request)
Insulation class E
Insulation test voltages 3 kV, 1 min, Ueff , 50 Hz (Um ≤ 0.72 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)
Fittingly:
Gruppenbild der multimess Energiemessgeräte

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