Description
The ECP-E2… 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-E2… electronic circuit breaker,
which selectively protects all 24 V DC load circuits. The
ECP-E2… 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-E2… can be controlled remotely by
means of the control input (12), for example, via a PLC, i.e.,
the ECP-E2… is electronically connected by means of an
external +24 V DC permanent signal (at connection 12),
enabling current to flow in the load circuit. Defined
shutdown, independent of the load, is carried out by
applying the ground signal at the same control input (12).
The floating auxiliary contacts of the ECP-E2… 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 signal contact indicate the
operating or error state.

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)
– Control input IN+ for remote ON/OFF signal
– Indication by means of LED or signal contact F
– Integrated failsafe element
– Design width of just 12.5 mm per channel
– Can be plugged into a modular base