b) Electrical safety
• Never pour liquids over electrical devices or place objects filled with liquid next to the product.
If liquid or an object does enter the interior of the device, power down the respective socket
(e.g. switch off the circuit breaker), and then remove the mains plug from the mains socket.
Discontinue use and take the product to a specialist repair centre.
• Never use the product immediately after it has been brought from a cold room into a warm
one. The condensation generated may destroy the product. Allow the product to reach room
temperature before connecting it and putting it to use. This may take several hours.
• Never connect or disconnect the measuring adapter if your hands are wet.
• Never disassemble the measuring adapter.
• Do not exceed the specified measurement ranges.
• Only use the measuring adapter to measure voltage and current. Do not use it to operate
electrical devices for prolonged periods.
• Do not insert a screwdriver, pins or other metal objects into the openings on the measuring
adapter.
• Never short circuit the contacts in the measuring adapter. Taking a current measurement
directly on the measuring adapter will cause a short circuit.
Product overview
1
2
3
4
5
6
1 CEE plug
2
(green)
3 L1 (brown)
4 L2 (black)
5 L3 (grey)
6 N (blue)
Setup and operation
To ensure that the device is configured correctly, read these instructions and the safety
information carefully before first use.
The measuring adapter allows you to take simple electrical measurements in closed-circuit systems with
CEE mains plugs. The five separate inner conductors are freely accessible via the earthed measuring
chamber. You do not need to open the mains cable. Each measuring chamber is marked accordingly (L1,
L2, L3, N, ).
Follow the steps below to take a measurement:
• Plug the measuring adapter into the CEE socket
that you want to measure.
• Select the appropriate measuring range on your
multimeter.
• Depending on the product, the current can be
between 0–16 and 0–32 A.
• When you have finished taking measurements,
remove the test prods from the measuring
chambers and disconnect the measuring adapter
from the CEE socket.
Measuring
chamber
Measured value
Measuring
chamber
Measured value
L1
Current through phase "L1"
N
Current through neutral wire ("N")
L2
Current through phase "L2"
Leakage current (stray current)
through earth wire
L3
Current through phase "L3"
Care and cleaning
• Always disconnect the product from the mains
before cleaning it. Unplug the measuring adapter
from the CEE socket and disconnect all connected
devices from the product.
• The adapter does not require maintenance except
for occasional cleaning.
• Never use aggressive detergents, rubbing alcohol
or other chemical solutions, as these may damage
the casing or cause the product to malfunction.
• Use a dry, lint-free cloth to clean the product.
Disposal
Electronic devices are recyclable waste and must not be placed in household waste. At the end
of its service life, dispose of the product according to the relevant statutory regulations.
You thus fulfil your statutory obligations and contribute to the protection of the environment.
Technical data
Test voltage .......................................... Max. 240 V/AC, 50/60 Hz (L to N/ )
max. 415 V/AC, 50/60 Hz (L to L)
Test current ........................................... Max. 16 A (item no. 1693251)
max. 32 A (item no. 1693252)
Overvoltage .......................................... CAT II 240 V / 415 V (3~), 50/60 Hz
Operating/storage conditions ................ 0 to +50 ºC, <90 % relative humidity (non-condensing)
Dimensions (L x W x H) ........................ 97 x 65 x 65 mm (item no. 1693251)
117 x 77 x 77 mm (item no. 1693252)
Weight .................................................. 170 g (item no. 1693251)
240 g (item no. 1693252)
Operating instructions
Measuring adapter
VMA-3L 16
Measuring adapter
VMA-3L 32
Item no. 1693251
Item no. 1693252
Intended use
This compact measuring adapter is designed to quickly connect measurement devices to CEE three-phase
sockets in order to take measurements in accordance with DIN VDE 0100 regulations. It must only be used
in overvoltage category II in AC voltage circuits with a maximum rated voltage of 415 V/AC that are fused
with a 16 A (VMA-3L 16) or 32 A (VMA-3L 32) fuse. Measurements can be taken with standard multimeters
on the insulated measuring chambers. You can measure the current of phase wires "L1, L2, L3" or the
neutral "N" wire as well as the leakage (stray) current on the earth wire. Only use the measuring adapter
for the duration of the measurement. Do not leave the measuring adapter connected to the mains circuit for
prolonged periods.
This product is intended for indoor use only. Do not use it outdoors. Contact with moisture (e.g. in bathrooms)
must be avoided under all circumstances.
For safety and approval purposes, you must not rebuild and/or modify this product. Using the product for
purposes other than those described above may damage the product. In addition, improper use can cause
hazards such as a short circuit, fire or electric shock. Read the instructions carefully and store them in a safe
place. Only make this product available to third parties together with its operating instructions.
This product complies with statutory, national and European regulations. All company and product names are
trademarks of their respective owners. All rights reserved.
Package contents
• Measuring adapter
• Operating instructions
Up-to-date operating Instructions
Download the up-to-date 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 a triangle indicates that there is a risk to your health, e.g. due to
an electric shock.
The symbol with an exclamation mark in a triangle is used to highlight important information in
these operating instructions. Always read this information carefully.
The arrow symbol indicates special information and advice on how to use the product.
CAT II
Overvoltage category II for measurements on electric and electronic devices connected 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).
Safety information
Read the operating instructions and safety information carefully. If you do not follow the
safety information and information on proper handling in these operating instructions,
we will 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 dangerous playing
material for children.
• Protect the product from extreme temperatures, direct sunlight, strong jolts, high humidity,
moisture, flammable gases, vapours and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, stop using it and prevent unauthorised
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 stress.
• Handle the product carefully. Jolts, impacts or a fall even from a low height may damage the
product.
• Always observe the safety information and operating instructions of any other devices which
are connected to the product.
• Consult a technician if you are not sure how to use or connect the product, or if you have
concerns about safety.
• Maintenance, modifications and repairs may only be carried out by a technician or a specialist
repair centre.
• If you have questions which remain unanswered by these operating instructions, contact our
technical support service or other technical personnel.
a) Persons and product
• Always comply with the accident prevention regulations for electrical equipment when using
the product in commercial facilities.
• In schools, educational facilities, hobby and DIY workshops, measuring devices must be
operated under the responsible supervision of qualified personnel.
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method (e.g. photocopying, microfilming or capturing in
electronic data processing systems) requires prior written approval from the publisher. Reprinting, also in part, is
prohibited. This publication represents the technical status at the time of printing.
Copyright 2018 by Conrad Electronic SE.
*1693251_1693252_v2_1118_02_DS_m_4L_(1)
