Siemens SENTRON Series User Manual

Connection
4.2 Connections
Expansion module I(N), I(Diff), analog
20 Manual, 04/2017, L1V30408520AG-01
Example connections
Several example connections for the expansion module I(N), I(Diff), analog can be found
below.
The device can be connected for current measurement and/or use of the analog inputs I
5
/ I
6
or a combination of both. The module must be individually configured to meet the
requirements of the application.
Current measurement using current transformers
Figure 4-2 Possible connection type with three current transformers
I
N
input:
A suitable current transformer must be used to measure the N-conductor current. The
appropriate current transformer ratio must be set on the device.
I
5
input:
A suitable summation current transformer must be used to measure the residual current. The
device input must be configured accordingly.

Siemens SENTRON Series Specifications

General

Product Series	SENTRON
Category	Measuring Instruments
Frequency Range	45-65Hz
Communication Interfaces	Modbus RTU, Ethernet
Display	LCD
Protection Class	IP20
Operating Temperature Range	-10°C to +55°C
Storage Temperature Range	-25°C to +70°C
Relative Humidity	5% to 95% (non-condensing)
Mounting	DIN rail