ESX10-TC Datasheet, PDF (1/8 Pages) ETAL Group – Selective load protection, electronic trip characteristics

Electronic Circuit Protector ESX10-TC DC 12 V
Description
Electronic circuit protector type ESX10-TC is designed to ensure
selective disconnection of DC 12 V load systems.
DC 12 V power supplies, which are widely used in industry today, will
shut down the output in the event of an overload with the result that
one faulty load in the system can lead to complete disconnection of
all loads. As well as an unidentified failure this also means stoppage
of the whole system.
Through selective disconnection the ESX10-TC responds much
faster to overload or short circuit conditions than the switch-mode
power supply. This is achieved by active current limitation. The
ESX10-T limits the highest possible current to 1.3 to 1.8 times the
selected rated current of the circuit protector. Thus it is possible to
switch on capacitive loads of up to 75,000 µF, but they are discon-
nected only in the event of an overload or short circuit.
ESX10-TC
For optimal alignment with the characteristics of the application the
Technical data (Tambient = 25 °C, operating voltage US = DC 12 V )
current rating of the ESX10-TC can be selected in fixed values from
0.5 A...10 A. Failure and status indication are provided by a multicolour Operating data
LED and an integral short-circuit-proof status output. Remote operation
is possible by means of a remote reset signal or a remote ON/OFF
control signal. The manual ON/OFF button allows separate actuation
of individual load circuits.
Operating voltage U_S
Current rating I_N
Closed current I₀
DC 12 V (9...18 V)
fixed current ratings:
0.5 A, 1 A, 2 A, 3 A, 4 A, 6 A, 10 A
ON condition: typically 15...20 mA
The ESX10-TC, with a width of only 12.5 mm, can be snapped onto _{Status indication}
l multicolour LED:
symmetrical rails ensuring ease of installation and saving space in by means of
Green:
control cabinets.

unit is ON, power-MOSFET is
Upon detection of overload or short circuit in the load circuit, the
switched on
MOSFET of the load output will be blocked to interrupt the
current flow. The load circuit can be re-activated via the remote
electronic reset input, control input or manually by means of the
ON/OFF button.





- status output SF ON, supplies +DC 12 V
Orange:
in the event of overload or short
circuit until electronic disconnection
Red:
US patent number: US 6,490,141 B2
US patent number: US 8,237,311 B2

- unit electronically disconnected

- load circuit/Power-MOSFET OFF


- low voltage (< 3.25 V)
- after switch-on until end of
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Features
switch-on delay
OFF:

- manually switched off (S1 = OFF)
l Selective load protection, electronic trip characteristics.
or device is dead
l Active current limitation for safe connection of capacitive loads

- undervoltage 
up to 75,000 µF and on overload/short circuit.

l _{status output SF (option)}
l Current ratings 0.5 A...10 A at DC 12 V.
l ON/OFF condition of switch S1
l Reliable overload disconnection with 1.1 x I_N plus, even with long
load lines or small cable cross sections.
l Manual ON/OFF button (S1).
Load circuit
Load output

Power-MOSFET switching output
(high side switch)
l Control input IN+ for remote ON/OFF signal (option).
l Electronic reset input RE (option).
l Clear status and failure indication through LED, status output SF.
l Integral fail-safe element adjusted to current rating.
l Width per unit only 12.5 mm.
l Rail mounting
l Ease of wiring through busbar LINE+ and 0 V.
l Additional versions with ATEX approval available.
Marking: II 3G Ex nA IIB T4 Gc X
ESX10-TC...-E
Please observe separate operating instructions:
Overload disconnection
typically 1.1 x I_N (1.05...1.35 x I_N)
Short-circuit current I_K
active current limitation (see table 1)
Trip time
see time/current characteristics
for electronic disconnection
typically 3 s at I_Load > 1.1 x I_N
typically 50 ms...3 s at I_Load > 1.8 x I_N
(or 1.5 x I_N)
Temperature disconnection internal temperature monitoring with

electronic disconnection
Low voltage monitoring
load output
with hysteresis at voltage dips < 500 ms,
no reset required: load “OFF” at U_B < 3.2 V
Starting delay t_start
typically 10 ms
Disconnection of load circuit electronic disconnection
Free-wheeling circuit

external free-wheeling diode
recommended with inductive load
Several load outputs must not be connected in parallel
1642
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