
3WL Air Circuit Breakers
21
Siemens · 2012
3WL Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC)
General data
Communication-capable 3WL circuit breakers
Function Electronic
release version
Breaker
Status
Sensor
PROFI-
BUS
com-
munica-
tion
port
Mea-
sure-
ment
func-
tion
Plus
Analog
output
modules
Digital
output
module
Digital
input
module
ZSI
module
Breaker
Data
Adapter
Plus
ETU45B ETU76B
Functions of the communication-capable 3WL circuit breakers
Indication of measured values in release (current only) ✓ ✓ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏
Indication of measured values in release
(U, I, P, S, Q, p.f., etc.)
✓ ✓ ❏❏✓❏ ❏❏❏ ❏
Indication of measured values (current only), parameter,
diagnostic values etc. on display
-- ✓ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏
Indication of measured values (U, I, P, S, Q, p.f., etc.),
parameters, diagnostic values etc. in release
-- ✓ ❏❏✓❏ ❏❏❏ ❏
Output of measured values (current only)
to rotary coil instruments in control cabinet door
✓ ✓ ❏ ❏ ❏ ✓ ❏ ❏ ❏ ❏
Output of measured values (U, I, P, S, Q, p.f., etc.) to
rotary coil instruments in control cabinet door
✓ ✓ ❏❏✓✓ ❏❏❏ ❏
Output of digital signals
(e. g. reason for tripping, alarm signals, status)
through contacts
✓ ✓ ❏ ❏ ❏ ❏ ✓ ❏ ❏ ❏
Automatic changeover between
parameter sets A and B
--
✓ ❏❏❏❏ ❏✓❏❏
Read in digital signals and forward to
PROFIBUS/MODBUS
✓ ✓ ❏ ✓ ❏ ❏ ❏ ✓ ❏ ❏
Transmission of switch information
on HTML basis locally to a PC
✓ ✓ ✓❏❏❏ ❏❏❏ ✓
Transmission of switch information
on HTML basis through Ethernet
✓ ✓ ✓ ❏ ❏ ❏ ❏ ❏ ❏ ✓
Short-time grading control for
S tripping and G protection
✓ ✓ ❏❏❏❏ ❏❏✓ ❏
Local display of harmonic analysis and waveform
memory
-- ✓ ❏ ❏ ✓ ❏ ❏ ❏ ❏ ❏
Local storage of harmonic analysis and waveform
memory and transmission through PROFIBUS
✓ ✓ ✓✓✓❏ ❏❏❏ ❏
Read out protection parameters through PROFIBUS ✓ ✓ ✓ ✓ ❏ ❏ ❏ ❏ ❏ ❏
Read out and adjust protection parameters through
PROFIBUS
--
✓ ✓✓❏❏ ❏❏❏ ❏
✓Required
Function can optionally be taken over by more than one release.
Function can optionally be taken over by one of these modules.
❏ Not necessary for this function, optionally combinable
-- Function not available
© Siemens AG 2011
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