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b) Connected devices

•  Also observe the safety and operating instructions of any other devices which are 

connected to the product.

c) Product

•  The measuring adapter and the plugs may not be disassembled.
• 

The voltage and current range specified should not be exceeded.

•  The measuring adapter may only be used for current and voltage measurement.
•  The user is not allowed to put other items than suitable safety measuring cables 

in the sockets

•  Current measurement on the measurement sockets is not possible (an attempt 

would short-circuit the device)! 

•  The user may not short-circuit the contacts of the measuring adapter.

Operation

  The current is measured with commercial AC current clamps on the insulated meas-

uring chambers and the voltage is measured with voltage measuring devices on the 

measuring so-ckets.

 

Both types of measurement can be carried out at the same time. Only use the meas-

uring adapter for the duration of the measurement. A permanent retention in the 

mains cable circuit is not permitted.

CAT III

  Overvoltage category III for measurements on electric and electronic devices con-

nected to the mains supply with a mains plug. This category also covers all lower 

categories (e.g. CAT I for measuring signal and control voltages).

Care and cleaning

•  Apart from the occasional cleaning the adapter is maintenance free.
•  Disconnect the product from the mains before each cleaning.
•  Do not use any aggressive cleaning agents, rubbing alcohol or other chemical solutions as 

they can cause damage to the housing and malfunctioning.

• 

Clean the product with a dry, fibre-free cloth.

Disposal

  Electronic devices are recyclable waste and must not be disposed of in the house-

hold waste. At the end of its service life, dispose of the product in accordance with 

applicable regulatory guidelines.

 

You thus fulfill your statutory obligations and contribute to the protection of the envi

-

ronment.

Technical data

Nominal voltage ............................ max. 250 V/AC, 50/60 Hz
Nominal current ............................ max. 16 A 
Protection type .............................. IP40
Operating temperature ................. 0 to +40 °C
Operating humidity .......................  max. 80 % up to 31°C 

decreasing linearly to 50 % at 40°C

Storage temperature ..................... -20 to +60 °C
Storage humidity ........................... <80 % RH (non condensing)
Altitude .......................................... max. 2100 m
Overvoltage category ................... CAT III 300 V
Dimensions (L x W x H) ................ 162 x 68.5 x 58 mm
Weight .......................................... approx. 206 g

 Important Information

VC-523 Measuring adapter

Item No. 2435657

Intended use

The product provides a safe and easy way to measure the AC current of plug-in appliances 

and other electrical devices.
The measuring adapter is inserted between the electrical consumer and the socket.
The measuring adapter may only be used in the range of the overvoltage category CAT III in AC 

voltage networks (nominal voltage max. 250 V/AC, nominal current max. 16 A).
Only use the measuring adapter for the duration of the measurement. A permanent retention in 

the mains cable circuit is not permitted.
The measuring operation is only permitted in dry surroundings. 
For safety and approval purposes, you must not rebuild and/or modify this product. If you use 

the product for purposes other than those described above, the product may be damaged. In 

addition, improper use can result in short circuits, fires, electric shocks or other hazards. Read 

the instructions carefully and store them in a safe place. Make this product available to third 

parties only together with its operating instructions.
This product complies with the statutory national and European requirements. All company 

names and product names are trademarks of their respective owners. All rights reserved.

Delivery content

•  Measuring adapter
•  Operating instructions

Up-to-date operating instructions           

Download the latest operating instructions at www.conrad.com/downloads or 

scan the QR code shown. Follow the instructions on the website.

Explanation of symbols

  The symbol with the lightning in the triangle is used if there is a risk to your health, 

e.g. due to an electric shock.

  The symbol with the exclamation mark in the triangle is used to indicate important 

information in these operating instructions. Always read this information carefully.

Safety instructions

Read this document and the accompanying operating instructions carefully 

and especially observe the safety information. If you do not follow the safety 

instructions and information on proper handling, we assume no liability for 

any resulting personal injury or damage to property. Such cases will invalidate 

the warranty/guarantee.

a) General information

•  The device is not a toy. Keep it out of the reach of children and pets.
•  Do not leave packaging material lying around carelessly. This may become dan-

gerous playing material for children.

•  Protect the appliance from extreme temperatures, direct sunlight, strong jolts, high 

humidity, moisture, flammable gases, steam and solvents.

•  Do not place the product under any mechanical stress.
•  If it is no longer possible to operate the product safely, take it out of operation and 

protect it from any accidental use. Safe operation can no longer be guaranteed 

if the product:

 - is visibly damaged,
 - is no longer working properly,
 - has been stored for extended periods in poor ambient conditions or
 - has been subjected to any serious transport-related stresses.

•  Please handle the product carefully. Jolts, impacts or a fall even from a low height 

can damage the product.

•  Consult an expert when in doubt about the operation, safety or connection of the 

appliance.

• 

Maintenance, modifications and repairs must only be completed by a technician 

or an authorised repair centre.

•  If you have questions which remain unanswered by these operating instructions, 

contact our technical support service or other technical personnel.

This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com). All rights in-

cluding translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data 

processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This publication 

represent the technical status at the time of printing.
Copyright 2021 by Conrad Electronic SE. 

   

*2435657_v2_1121_02_dh_ss_en_(measuring adapter)

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