Datasheet
Edited in Germany • Subject to change without notice • A pdf version is available on the Internet.
AT3-III E Test Adapter
for Active and Passive Testing of Single and 3-Phase
Electric Devices and Extension Cables
GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nürnberg
• Germany
Phone +49 911 8602-111
Fax: +49 911 8602-777
e-mail: info@gossenmetrawatt.com
www.gossenmetrawatt.com
Safe, Efficient Work
Operation is simple and safe. The test adapter is connected to a
3-phase 16 A mains outlet, and to the respective test instrument.
Testing is performed without reversing polarity at the device under
test, either automatically or manually, and is controlled by the test
sequence of the utilized test instrument. Safety shutdown occurs
if the factory preset residual current value is exceeded.
Applicable Regulations and Standards in accordance with which the test
adapter has been manufactured and tested
Regulations and Standards for the Use of test adapters
Characteristic Values
Residual Current Measuring Function
Measuring Range 0 … 20 mA
Transformation Ratio 1 V per 10 mA
Intrinsic Uncertainty ±(5%
of rdg.
+ 0.05 mA)
Nominal ranges of use
Line voltage
L1/L2/L3/N 207 … 253 V AC
Frequency 49 … 51 Hz
Temperature 0 °C … +40 °C
Line voltage wave shape
sine
Reference conditions
Ambient
temperature +23 °C ±2K
Relative humidity 50% ±5%
Line voltage 230 V/400 V ±10%
Measured quantity
frequency 50 Hz ±0.2%
Ambient Conditions
Operation –10 … + 40 °C
Storage –25 … + 60 °C
Relative humidity max. 75%, no condensation allowed
Elevation to 2000 m
Power Supply
Line nominal voltage
3~230/400 V/50 Hz/CAT II
Connection only permissible with overload protection device
I
n
= 16 A I
2
≤ 1.45 I
n
Electrical Safety
Standard
DIN VDE 0404-1/-2:2002-5
IEC/EN 61010-1:2010
Pollution degree 2
Safety class I
4-pole residual current
shutdown at approx. 18 mA
Fuse protection F315mA L 250V
5 x 20 T32mA L 250 V
DIN EN 60127-2
Mechanical Design
Protection case: IP 40 per DIN VDE 0470, part 1
terminals: IP 20
Dimensions 405 x 300 x 220 mm (with lid)
Weight approx. 6.7 kg
Electromagnetic Compatibility
Intrinsic Uncertainty EN 61326-1:2006 class B
Intrinsic Uncertainty EN 61326:20
Please observe the technical data of the respective test instrument.
Standard Equipment
1 test case AT3-III E
1 operating instructions
1 plug insert per EN 60320 C13 for C6 sockets
(non-heating devices, 10 A to 2.5 A IBM plug)
Order Information
For additional information regarding accessories please refer to
• Measuring Instruments and Testers catalog
• www.gossenmetrawatt.com
IEC/EN 61010-1:2001
VDE 0411-1:2002
Safety requirements for electrical equipment for measurement,
control and laboratory use – general requirements
IEC EN 60529 Test instruments and test procedures
Degrees of protection provided by enclosures (IP code)
IEC 61326-1
Electrical equipment for measurement, control and laboratory
use – EMC requirements – Part 1: General requirements
DIN VDE 0701-0702
Inspection after repair, modification of electrical appliances - Pe-
riodic inspection on electrical appliances - General requirements
for electrical safety
IEC 62353
DIN EN 62353
VDE 0751-1
Medical electrical equipment – Recurrent test and test after
repair of medical electrical equipment
DGUV provision 3
(previously BGV A3)
Provision 3 of the Deutsche Gesetzliche Unfallversicherung
(German Statutory Accident Insurance)
– Accident Prevention Regulation „Electrical systems and
equipment“
Description Type Article Number
Test adapter AT3-II I E Z745S