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Vendor: ONKA

ONKA Current Transformer - CURRENT TRANSFORMER 4000/5A, 100MM, CLASS 0.5S, 30VA (TK10040005312 / 80011777)

Barcode: 80011777
Regular price
€80,20 €64,16 excl. VAT
Regular price
Sale price
€80,20 €64,16 excl. VAT
27 in stock
All items are in stock and shipped from the Czech Republic. Delivery takes 3–8 days.
  • Description
  • Payment methods
  • Warranty

Slip-on measuring transformer for primary rated current 4000 A, secondary current 5 A, rated power 30 VA, supplied in accuracy class 0.5S, ONKA.

ONKA TK10040005312 is a slip-on / windowed current transformer designed for indirect measurement of sinusoidal alternating current. It is suitable for high-performance industrial and commercial switchgear cabinets and distribution systems.

Technical parameters

Parameter Value
Primary rated current 4000 A
Secondary current 5 A
Mounting / inner diameter Ø 100 mm
Rated power (secondary load) 30 VA
Accuracy class 0.5S
Type of mounting Windowed / slip-on, with included mounting brackets

Product description

The transformer converts very high primary current (up to 4000 A) into a standard secondary current of 5 A, enabling safe and easy connection:

  • meters and ammeters

  • protection and automation systems

  • monitoring and measuring systems

Installation is simple thanks to the windowed/slip-on design – no need to interrupt the main circuit.

Advantages

  • High current capacity – up to 4000 A primary current, suitable for feeders and heavy loads

  • Standard output 5 A – compatible with most measuring and protective devices

  • Accuracy class 0.5S – stable and precise measurements for commercial and industrial applications

  • Rated power 30 VA – sufficient to power the secondary circuit

  • Easy installation – windowed cover + mounting clips, no need to interrupt the circuit

  • Universal application – suitable for switchgear cabinets, industrial systems, measurement, protection, and automation systems

Recommended application

  • Large industrial switchgear cabinets and distribution systems

  • Industrial and commercial power networks with heavy loads

  • Electricity measurement systems, consumption monitoring, and phase balancing

  • Protective and measuring circuits requiring reliable and precise current control

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.

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