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Media gallery
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ONKA Current Transformer - CURRENT TRANSFORMER 300/5A, 40MM, CLASS 0.5S, 1.5VA (TK403005302 / 80011765)
- Regular price
- €16,80 €13,44 excl. VAT
- Regular price
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- Sale price
- €16,80 €13,44 excl. VAT
- Unit price
- per
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- Description
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Screw-on measuring transformer for primary rated currents of 300 A, secondary current 5 A, rated power 1.5 VA, supplied in accuracy class 0.5S, ONKA.
ONKA TK403005302 is a plug-in / screw-on current transformer designed for indirect measurement of sinusoidal alternating current in small and medium electrical systems.
Technical parameters
| Parameter | Value |
|---|---|
| Primary rated current | 300 A |
| Secondary current | 5 A |
| Mounting / inner busbar diameter | 40 mm |
| Rated power (secondary circuit load) | 1.5 VA |
| Accuracy class | 0.5S |
| Mounting type | Screw-on / with opening – installation using included mounting feet |
Product description
The transformer converts primary current up to 300 A into secondary current 5 A, enabling safe connection to:
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measuring devices (ammeters, meters)
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protective and automation systems
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monitoring and control devices
Compact design with a 40 mm mounting diameter is ideal for installation in residential or light commercial distribution cabinets, where space is limited. The screw-on design ensures quick and easy installation without circuit interruption.
Advantages
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Compact and lightweight design – suitable for small distribution cabinets and limited space
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High measurement accuracy – class 0.5S
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Standard secondary current 5 A – compatible with most measuring and control devices
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Easy installation – screw-on housing and mounting feet included
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Reliability and stability – suitable for continuous current monitoring
Recommended use
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Residential and light commercial distribution cabinets
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Basic current measurement and monitoring in small feeders
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Electricity consumption monitoring
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Connecting ammeters, meters, and protective/automation systems
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Light and medium electrical circuits with currents up to 300 A
Online card payment - after completing your order you will be redirected to the payment gateway, a payment confirmation will be sent to your email
COD - you pay according to the payment order to the carrier's driver
By bank transfer - no later than the next working day, you will receive a pro forma invoice to your email containing the account number that you will enter when making the payment.
On invoice - this payment option is available to partners who have a signed framework agreement with our company.
If you want to use the last 2 methods, call our manager and he will give you instructions on how to receive an invoice with or without VAT.
The electrical equipment we supply meets high quality standards, has a 24-month warranty and meets all EU requirements.
We also have free shipping (for orders over 100 EUR), a flexible system of discounts and promotions. The technical knowledge and experience of our employees allows us to provide quality advice and, if necessary, offer alternatives to electrical products.
The electrical equipment we supply meets high quality standards, is covered by a 24-month warranty, and meets all EU requirements.
In the event of a complaint, the return of goods is not charged.