: 25 A
: 5 A
Class: 1/3 Rating: 3 VA / 6 VA
Frequency: 50 - 60 Hz
Thermic short circuit current: 40 IpN 1 seg.
Dynamic short circuit current: 2,5 I th 1 seg.
Permanent overloading: 120% Icth
Insulation: In air, Class E
Test voltage: 3kv (50Hz) 1 min.
Protection degree: IP30
Ambient temperature: -20ºC a 40ºC
Standards: EN 60044-1
Mounting: Screws and DIN rail
Weight: 0,4 kg
Dimensions (AxBxCxDxE): 58x70x97 mm
Measuring transformers
The short circuit on terminals or the connection to earth can be achieved by the double fast-on or connecting two wires on the same terminal.
Protection transformers
The C.T. when used as a current generator for protection relays has electrical characteristics which differ from those of the measuring transformer.
In fact, the measuring C.T. is expected to give a saturation of the magnetic circuit with 5P in primary currents, while in the case of protective C.T., it is necessary for the secondary current value to follow the increase in the primary current up to 10-15-20In, so as to guarantee the intervention of the relay in the case of unforeseen breakdown current.
It is important not to load the C.T. with a P performance which is greater than that indicated, so as not to modify the saturation value of the C.T.
P=R∗I2
P = Load on the C.T.
R = Resistance of the relay and resistance of the cables
I = Nominal secondary current of the C.T.
Delivery terms
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Basic delivery conditions:
- Geography of delivery: We deliver throughout UK. Regardless of your location, you can be sure that your order will be delivered as quickly as possible.
- Delivery time: delivery time depends on your location and the delivery method you choose. We offer various options, including express shipping, to make sure you receive your order as quickly as possible.
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Delivery costs: Delivery costs are calculated individually depending on the weight, dimensions of the goods and the destination. We are committed to offering our customers competitive shipping prices.
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Delivery methods: We work with leading logistics companies to ensure safe and timely delivery. You can choose the delivery method that is most convenient for you.
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Order tracking: once your order has been placed, you will receive a tracking number so that you can know the status and location of your order at any time.
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Additional services: we also offer insurance and packaging services to make sure your item arrives safely.
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