Description
The ECP-E3… electronic circuit breaker can be used in
applications that cover all aspects of the switched-mode
power supply unit.
In the event of an overload, switched-mode power supply
units reduce their output voltage, which means that all the
connected loads are no longer sufficiently supplied, e.g., in
the event of a short circuit at the load.
The solution here is the ECP-E3… electronic circuit breaker,
which selectively protects all 24 V DC load circuits. The
ECP-E3… constantly limits the residual current to 1.8 times
(or 1.5/1.3 times) the protected nominal current. Capacitive
loads can thus be switched on and loads are only switched
off in the event of an overload or short circuit.
In addition, the ECP-E3… can be reset by means of the
reset input (12), for example, via a PLC, i.e., the ECP-E3…
is electronically reset by means of a falling +24 V DC edge
(at connection 12).
The floating auxiliary contacts of the ECP-E3… can be used
to implement a group query from connection 13 to 14.
If a circuit breaker trips or is disabled, the signal to
connection 14 is interrupted.
A multi-color LED and the integrated status output
(12) indicate the operating or error state.
The ECP-E3… offers quick and space-saving assembly, as
it can be plugged onto the TMCP SOCKET M and has a low
design width of just 12.5 mm.

Properties
– Selective load protection, electronic shutdown
characteristic curve
– Active current limitation when switching on capacitive
loads up to 20,000 μF and in the event of overload/short
circuit
– Nominal current can be selected in fixed current
strengths from 1 A ... 12 A
– Safe overload shutdown from 1.1 x IN, even for long
load cables or low cable cross-sections
– Manual on/off switch (S1)
– Clear indication by means of LED or signal contact F
– Electronic reset input RE
– Integrated failsafe element
– Design width of just 12.5 mm per channel
– Can be plugged into a modular base