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Clip-on current transformer for primary rated currents of 400 A, secondary current 5 A, rated power 2.5 VA, available in accuracy class 0.5S, ONKA.
ONKA TK404005303 is a pluggable / insertable (window) current transformer designed for the indirect measurement of sinusoidal alternating current. It is suitable for compact installations in switchgear for residential buildings, commercial, and light industry.
Technical parameters
| Parameter | Value |
|---|---|
| Primary rated current | 400 A |
| Secondary current | 5 A |
| Mounting/inner diameter | Ø 40 mm |
| Rated power (secondary load) | 2.5 VA |
| Accuracy class | 0.5S |
| Mounting type | Plug-in/window (pluggable), with supplied mounting feet |
Product description
The transformer converts a primary current of up to 400 A into a standard secondary current of 5 A, enabling safe and easy connection:
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Meters and current measuring devices
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Protection and automation systems
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Monitoring devices
Thanks to its compact dimensions and small diameter of 40 mm, the transformer can be easily installed even in cabinets with limited space without the main current having to be routed through the measuring devices.
Advantages
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Compact and lightweight design - suitable for small control cabinets
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High measurement accuracy - Class 0.5S
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Standard 5 A secondary current - compatible with most measuring devices
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Easy installation - snap-on housing and mounting feet included
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Reliability and stability - suitable for continuous current monitoring
Recommended application
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Basic measurement and monitoring of current in small lines
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Monitoring of electricity consumption
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Connection to meters, current measuring devices, protection and automation systems
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Light and medium circuits with currents up to 400 A
Online payment by card - after completing the order, you will be redirected to the payment page, and the payment confirmation will be sent to you by email.
Cash on delivery - payment is made according to the payment instructions to the driver of the transport company.
Bank transfer - you will receive a proforma invoice by email no later than the next business day, which includes the account number you should use for the payment.
On account - this payment option is available to partners who have concluded a framework agreement with our company.
If you wish to use the last two payment methods, please call our manager who will provide you with instructions on how to receive an invoice with or without VAT.
The electrical devices we supply meet high quality standards, come with a 24-month warranty, and comply with all EU requirements.
Additionally, we offer free shipping for orders over €100. We have a flexible system of discounts and promotions. The technical knowledge and experience of our staff enable us to provide high-quality advice and, if necessary, suggest alternatives to electrical products.
The electrical equipment we supply meets high-quality standards, comes with a 24-month warranty, and complies with all EU requirements.
In case of a complaint, the return of the goods is free of charge.
