Current transformer 80/1 A

Ratio 80:1 · primary current 80 A, secondary current 1 A

4 CELSA current transformers with a ratio of 80/1 A: Plug-on / winding current transformers (ALO) and Calibrated clip-on current transformers (ALO-E). Accuracy class 0.5, 0.5 S or 1, rated burden 1–2.5 VA. From €33.96 incl. VAT, with datasheet – order online.

Ratio 80/1 A

4 products

from Tue 27/10

ALO 3015

50 A – 750 A

from €30.39incl. VAT

from Tue 27/10

ALO 4012

50 A – 1000 A

from €34.68incl. 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

Frequently asked questions

What does 80/1 A mean?

With 80 A flowing in the primary conductor, the transformer delivers 1 A to the meter or measuring device – a ratio of 80:1. Meters and instruments are set to this CT ratio. The 1 A secondary keeps cable losses low on long measuring lines.

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 80/1 A the classes 0.5, 0.5 S and 1 are available here. Billing-relevant metering requires class 0.5 or better; for display and monitoring class 1 is usually sufficient. Accuracy class comparison →