ONKA Current Transformer - CURRENT TRANSFORMER 1200/5A, 100MM, CLASS 0.5S, 10VA (TK10012005307 / 80011773)

Inserted measuring transformer for primary rated current 1200 A, secondary current 5 A, rated power 10 VA, available in accuracy class 0.5S, ONKA.

ONKA TK10012005307 is a highly accurate inserted current transformer designed for indirect measurement of alternating current in electrical installations and distribution cabinets. It converts high primary current into a standard secondary current of 5 A, enabling safe connection to measurement and protection systems.

Technical specifications

Basic parameters

• Primary rated current: 1200 A

• Secondary current: 5 A

• Busbar diameter / internal mounting diameter: 100 mm

• Rated power: 10 VA

• Accuracy class: 0.5S – suitable for precise measurements and load monitoring

Installation

• Mounting type: Inserted transformer

• Mounting feet: Included in the package

• Easy installation: Insert design without interrupting the main circuit

Description

The transformer converts high primary current (1200 A) into standardized secondary current 5 A. This enables:

• connecting meters and ammeters

• integration into protection systems

• load monitoring and control

• easy installation in distribution cabinets thanks to the standard 100 mm diameter busbar

Compact dimensions and robust construction ensure reliability and long service life even in industrial or commercial applications.

Advantages

• Primary current up to 1200 A – suitable for high loads

• Secondary current 5 A – compatible with most measuring devices

• Accuracy class 0.5S – reliable and precise measurement

• Compact housing – easy installation on 100 mm busbar

• Rated power 10 VA – sufficient for most measurement systems

Application

• Industrial and commercial distribution cabinets

• Systems for measuring electrical energy and load monitoring

• Connecting meters, ammeters, and protective devices

• Current monitoring in networks with primary currents up to 1200 A