Siemens SENTRON VL Series System Manual page 85

Table 3- 22
ETU45B trip unit
ETU76B trip unit
Metering function PLUS
Breaker Status Sensor BSS
COM15 PROFIBUS communication
module
ZSI module
Digital output module with rotary coding
switch, relay outputs
Digital output module, configurable,
relay outputs
Analog output module
Digital input module
BDA PLUS
Connection of several SENTRON WLs
To connect several SENTRON WL circuit breakers to a power supply, the aggregates of the
continuous currents and start-up currents must be taken into account.
SITOP Power power supply
The appropriate power supplies can be selected from the Siemens SITOP Power range.
Example:
A switch consists of an ETU45B, BSS, COM15, metering function, and output module with
relay contacts.
The maximum continuous current is 585 mA, and the maximum start-up current is 2635 mA.
That is, a SITOP Power 2 is sufficient for power supply. For one or more SENTRON WLs, a
power supply from the SITOP range can be selected. You can find further technical data in
the Catalog KT 10.1 or in the online Mall (https://mall.automation.siemens.com
(https://mall.automation.siemens.com)).
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
Calculating the power consumption of the CubicleBUS modules for SENTRON WL with
CubicleBUS system
CubicleBUS module
3.7 External current consumption with CubicleBUS
Number of Max. continuous
modules per current per module
CubicleBUS from the
CubicleBUS
1 120 mA
1 170 mA
1 120 mA
1 40 mA
1 125 mA
1 50 mA
1-2 180 mA
1 180 mA
1-2 110 mA
1-2 30 mA
1 250 mA
3WL air circuit breakers
Max. start-up
current per module
from the
CubicleBUS
2000 mA
2000 mA
120 mA
110 mA
180 mA
125 mA
125 mA
125 mA
800 mA
125 mA
350 mA
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