Current transformer 75/5 A

Ratio 75:5 · primary current 75 A, secondary current 5 A

6 CELSA current transformers with a ratio of 75/5 A: Plug-on / winding current transformers (ALO), Calibrated clip-on current transformers (ALO-E), Rail conversion current transformer (IAP) and Protective current transformer (IB-50). Accuracy class 0.5, 0.5 S, 1, 3 or 5P5–10P5, rated burden 1–2.5 VA. From €30.39 incl. VAT, with datasheet – order online.

Ratio 75/5 A

6 products

from Tue 27/10

ALO R21

30 A – 500 A

from €33.03incl. VAT

from Tue 27/10

ALO 3015

50 A – 750 A

from €30.39incl. VAT

from Wed 04/11

ALO 50T3012

50 A – 400 A

from €66.53incl. VAT

from Wed 04/11

ALO-E 50T3012

50 A – 400 A

from €137.24incl. VAT

from Wed 18/11

IAP

60 A – 1000 A

from €113.36incl. VAT

from Wed 18/11

IB-50

75 A – 600 A

from €56.72incl. VAT

Frequently asked questions

What does 75/5 A mean?

With 75 A flowing in the primary conductor, the transformer delivers 5 A to the meter or measuring device – a ratio of 15:1. Meters and instruments are set to this CT ratio.

How much burden (VA) do I need?

The rated burden must cover the consumption of the connected devices plus the losses of the measuring line, without being much higher. The types listed here offer 1–2.5 VA. The VA calculator determines the value. VA calculator →

Which accuracy class?

For 75/5 A the classes 0.5, 0.5 S, 1, 3 and 5P5–10P5 are available here. Billing-relevant metering requires class 0.5 or better; for display and monitoring class 1 is usually sufficient. Accuracy class comparison →