Siemens SENTRON 3WL Reference Manual page 14

3WL Air Circuit Breakers
3WL Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC)
General data
■
Function
Functions of the solid-state releases
Basic protection functions
Overload protection
Short-time delayed short-circuit protection
Instantaneous short-circuit protection
Neutral conductor protection
Ground-fault protection
Additional functions
N-conductor protection can be switched on/off
N-conductor protection adjustable
Instantaneous short-circuit protection can be switched on/off
Non-delayed short-circuit protection can be switched on/off
Thermal image can be switched on/off
Load monitoring
Short-time delayed short-circuit protection switchable to I
Instantaneous short-circuit protection adjustable
Overload protection switchable to I
Overload protection can be switched on/off
Selectable parameter sets
Parameterization and display
Parameterization through rotary coding switches (10 steps)
Parameterization through communication (absolute values)
Parameterization through user interface of ETU (absolute values)
Parameterization of the extended protection functions
LCD alphanumerical
Graphic LCD
Measurement function
Measurement function Plus
Communication
CubicleBUS
Communication through PROFIBUS DP
Communication through MODBUS
Communication through Ethernet
✔ Standard
-- Not available
Detailed information about the functions of the solid-state releases is given in the following.
14 Siemens · 2009
L
S
I
N
G
2
t
4
t
❑ Optional
R
R
i
N S E 0 _ 0 0 9 5 1 b
N S E 0 _ 0 0 9 5 0 c
ETU15B ETU25B
✔
--
✔
--
--
--
--
--
--
--
--
--
✔
--
--
--
✔
--
--
--
--
--
--
--
--
--
--
R
s d
s d
J
s d
J
s d
g
J
g
N S E 0 _ 0 0 9 5 2 b
ETU27B
✔ ✔
✔ ✔
✔ ✔
✔
--
✔
--
✔
--
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
✔ ✔
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --