User Manual

Edited in Germany Subject to change without notice  PDF version available on the Internet
GMC-I Messtechnik GmbH
Südwestpark 15
90449 Nuremberg 
Germany
Phone: [phone]
Fax: [phone]
e-mail: [e-mail]
www.gossenmetrawatt.com
6 Specifications
1)
The clip-on transformer Z3512A is fitted with a voltage output.
It has to be connected to the alternating voltage path (V~) of the
measuring unit. Output sensitivity can be selected in 4 steps. Er-
ror indication refers to 10% 100% of each selected maximum
current (e. g. in switch position a: 10 A 100 A).
Clip-on current transformers
Type Z3511 Z3512 Z3512A Z3514
Description/
Applications
The current transformers serve to expand AC measuring ranges. In conjunction with indicating and recording instru-
ments it is possible to measure AC currents on lines and bus bars without the need to interrupt them. The secondary
connection is made via hard-wired leads with contact-protected connection plugs. A protective circuit prevents high
voltages when the secondary circuit is interrupted.
Nominal
primary current
4  600 A~ 0.1  1000 A~
( 1200 A~)
a: 1  1000 A~
b: 0.1 A  100 A~
c: 10 mA  10 A~
d: 1 mA  1A~
1 ... 2400A~
(... 3600A~)
Output signal 1 mA~ / A~ 1mA~ / A~ a: 1 mV~ / 1 A~
1)
b: 10 mV~ / 1 A~
c: 0.1 V~ / 1 A~
d: 1 V~ / 1 A~
1mA~ / A~
Measuring of the
indicating instrument
 500 mA~  1.2 A~ 0  1 V~ (3 V~)  2000mA~
Transmission ratio
input : output
1000 : 1 1000 : 1 a: 1000 : 1
b: 100 : 1
c: 10 : 1
d: 1 : 1
1000 : 1
Accuracy/
max. error
as per IEC 185
Class 1 (1.25VA)
(3% rdg. +0.4A)
Class 0.5 (5 VA)
(0.5% rdg. +0.05 A)
a: 1%  0.2% =21
b: 1%  0.2% =21
c: 1%  0.5% =52
d: 3%  0.7% ~10
Class 0.5 (5VA)
(0.5% rdg. +0.1A)
at 200 ... 2000A
Input Impedance
(Load)
max. 5  max. 5 10 M // 100 pF max. 0.6
Frequency range 48 Hz
 65 Hz  1kHz 30Hz  48 Hz  65 Hz
 5kHz
a: 10 Hz  500 Hz
(1 kHz)
b:  d: 10 Hz  3 kHz
30Hz ... 48Hz ... 65Hz
...
5kHz
Max. operating
voltage
600 V CAT III
as per IEC 61010
600 V CAT III
as per IEC 61010
600 V CAT III
as per IEC 61010
600 V CAT III
as per IEC 61010
Opening for
round cond. up to
flat conduct. up to
30 mm 
5x63mm
52 mm 
53 mm (diagonal)
52 mm 
53 mm (diagonal)
64mm 
5 times 5 x 125mm or
3 times 10 x 100mm
Dimensions 66 x 195 x 34 mm 105 x 206 x 48 mm 111 x 216 x 45 mm 145 x 333 x 49mm
Weight 0.42 kg 0.65 kg 0.55 kg 1.8kg
Cable length 1.5m 1.5m 1.5m 1.5m
Ident nummer GTZ3510000R0001 GTZ3511000R0001 Z225A GTZ3514000R0001