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1
SPLIT CORE CURRENT TRANSFORMERS
TC / TQ
TC / TQ Technical Features
TypePrimary Current
ARated Burden1)
Cl. 0,5 / VA* Cl.1 / VA* Cl.3 / VA*
TQ 18-B
100/1A – 0,2 –
125/1A – 0,2 –
150/1A – 0,2 –
200/1A – 0,2 –
250/1A – 0,2 –
150/5A – 1 –
200/5A – 1 –
250/5A – 1 –
TC 18
60/1A – – 0,2
75/1A – – 0,2
100/1A – – 0,2
125/1A – – 0,2
150/1A – – 0,2
200/1A – 0,2 0,2
250/1A – 0,2 –
TQ 27
200/1A – 0,2 –
250/1A – 0,2 –
300/1A – 0,2 –
400/1A – 0,2 –
500/1A – 0,2 –
250/5A – 1 –
300/5A – 1 –
400/5A – 1 –
500/5A – 1 –
TQ 42 / TQ 84
250/1A – 0,5 –
300/1A – 0,5 –
400/1A – 0,5 –
500/1A – 0,5 –
600/1A – 0,5 –
750/1A 0,5 – –
800/1A 0,5 – –
1000/1A 0,5 – –
300/5A – 1,5 –
400/5A – 1,5 –
500/5A – 1,5 –
600/5A – 1,5 –
750/5A – 1,5 –
800/5A 1,5 – –
1000/5A 1,5 – –
TC18 / TQ42 / TQ84 Technical specificationsEnviromental conditions
Location Indoor use
Operating temperatureTC18: -5ºC to +40ºCTQ42/TQ84: -10ºC to +55ºC
Relative humidity 5% - 85%, non condensing
Protection degree IP20
Application conditions
Standard IEC 60044-1
Rated short-time thermal current 60 x ln/1s
Rated insulation level 100% ln
Rated frequency 0,72/3-kV
Class of insulationTC18: ETQ42/TQ84: E (+120ºC)
Primary window dimensionsTC18: max. Ø 18mmTQ42: max. Ø 42mmTQ84: 42mm x 84mm
Secondary leads
TC18: 5m cable 0,5mm2
3m cable 0,5mm2 (200-250/1A)
TQ42/ 1A: L= 3m cable 0,5mm2 flexible
TQ84: 5A: L= 0,5m cable 1,5mm2 flexible
Application
The very compact TQ/ TC are especially designed for connection to digital
measurement systems. All TC /TQ are supplied with colour coded leads se-
condary leads. Correct closing of the current transformer/sensor is guaran-
teed by a distinct sound of a “click”. Two UV-resistant ty-raps are supplied
with the current transformer whicn can be easily mounted around the pri-
mary conductor.
All TC18/ TQ42 and TQ84 current transformers are capable of supplying
the specified burden at the end of the secondary leads. The accuracy of
these current transformers (TQ42/TQ84) results in highly accurate measu-
rement.
All TQ18-B current sensors and all TQ27 current transformers are capable
or supplying a burden of 0.2 VA at the end of the cable. The accuracy class
1 for all these CT’s are perfect for high accurate kWh measurements.
Split core current transformer / sensor
n Very easy mounting is guaranteedn Fast fixation with two UV-resistant tie wrapsn Also in class 1 available for high accurate kWh measurementsn All TC/TQ.. split core CT’s are supplied with colour coded leads
NEW
1) Burden specified at the end of the secondary leads* Accurcy conform IEC 600-44-1, valid from 5 to 120%ln
TQ18-B / TQ27 Technical specificationslth 60*ln/1s
Insulation class E (max. 120ª)
Protection degree IP20
Ambient temperature -5 to +55ºC
According EC 60044-1
Primary conductorTQ18-B: max. Ø 18mmTQ 27: max. Ø 28mm
Secondary leads1A: L= 3m cable 0,5mm2
5A: L= 0,5m cable 1,5mm2
Remark Only for insulated primary conductors