Electronic Circuit Protector ESX10-T.-DC 24 V
Description
Electronic circuit protector type ESX10-T is designed to ensure
selective
disconnection of DC 24 V load systems.
DC 24 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-T 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 disconnected only
in the event of an overload or short circuit.
For optimal alignment with the characteristics of the application the
current rating of the ESX10-T can be selected in fixed values from
0.5 A...12 A or in adjustable ratings e.g. [2 A/4 A/6 A]. Failure and status
indication are provided by a multicolour LED and an integral short-
circuit-proof status output or a potential-free signal contact. 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.
The ESX10-T, with a width of only 12.5 mm, can be snapped onto
symmetrical rails ensuring ease of installation and saving space in
control cabinets.
Upon detection of overload or short circuit in the load circuit, the
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.
US patent number:
US 6,490,141 B2
US patent number:
US 8,237,311 B2
ESX10-TD
Technical data
Operating data
Operating voltage U
S
Current rating I
N
(Tambient = 25 °C, operating voltage US = DC 24 V)
Closed current I
0
Status indication
by means of
Features
l
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l
l
l
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l
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Selective load protection, electronic trip characteristics.
Suitable for all kinds of loads (DC 24 V motors upon request)
Active current limitation for safe connection of capacitive loads
up to 75,000 µF and on overload/short circuit.
ESX10-TA/-TB:
Current ratings 0.5 A...12 A
ESX10-TD:
adjustable ratings [0.5 A/1 A/2 A], [2 A/3 A/4 A], [2 A/4 A/6 A]
and [6 A/8 A/10 A]
Reliable overload disconnection with 1.1 x I
N
plus, even with long
load lines or small cable cross sections (see table 3).
Manual ON/OFF button (S1).
Control input IN+ for remote ON/OFF signal (option).
Electronic reset input RE (option).
Clear status and failure indication through LED, status output SF
or Si contact F.
Integral fail-safe element adjusted to current rating.
Width per unit only 12.5 mm.
Rail mounting
Ease of wiring through busbar LINE+ and 0 V as well as signal bars
and bridges.
Additional versions with ATEX approval available.
Marking:
II 3G Ex nA IIB T4 Gc X
ESX10-TA-...-E and ESX10-TB-...E
Please observe separate operating instructions:
DC 24 V (18...32 V)
fixed current ratings:
Type ESX10-TA-... and -TB-...:
0.5, 1 A, 2 A, 3 A, 4 A, 6 A, 8 A, 10 A, 12 A
adjustable ratings:
Type ESX10-TD-...:
[0.5 A/1 A/2 A], [2 A/4 A/6 A], [6 A/8 A/10 A]
Type ESX10-TD-101-...:
[2 A/3 A/4 A]
ON condition: typically 20...30 mA
depending on signal output
l
multicolour LED:
Green:
- unit is ON, power-MOSFET
is switched on
- status output SF ON,
supplies + DC 24 V
Orange:
- in the event of overload or short
circuit until electronic disconnection
Red:
- unit electronically disconnected
- load circuit/Power-MOSFET OFF
OFF:
- manually switched off (S1 = OFF)
or device is dead
- undervoltage (U
S
< 8 V)
- after switch-on till the end
of the delay period
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status output SF (option)
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potential-free signal contact F (option)
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ON/OFF/ condition of switch S1
4
Power-MOSFET switching output
(high side switch)
Overload disconnection
typically 1.1 x I
N
(1.05...1.35 x I
N
)
Short-circuit current I
K
Active current limitation with
I
Limit
= typically 1.8/1.5/1.4/4.3 x I
N
,
I
Limit
depending on I
N
(typical I
Limit
- values see table 1)
Trip characteristic
active current limitation (see table 1)
Trip thresholds/trip times
1. threshold:
(t
1
, t
2
) at overcurrent
at I
load
> typically 1.1 x I
N
...I
Limit
:
(I
Limit
see table 1)
t
1
= typically 3s.
2. threshold:
at I
load
= I
Limit
:
t
2
= typically 100 ms...3 s.
Temperature disconnection internal temperature monitoring with
electronic disconnection
Low voltage monitoring
load output
with hysteresis, no reset required
load “OFF” at U
S
< 8 V
43
Load circuit
Load output
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Electronic Circuit Protector ESX10-T.-DC 24 V
Technical data
Starting delay t
start
(Tambient = 25°C, operating voltage US = DC 24 V)
Technical data
LED display
General data
Fail-safe element:
(Tambient = 25°C, operating voltage US = DC 24 V)
4
typically 0.5 sec after every switch-on
and after applying U
S
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
Status output SF
ESX10-T.-114/-124/
Electrical data
plus-switching signal output,
connects U
S
to terminal 12 of module 17plus
nominal data: DC 24 V / max. 0.2 A (short
circuit proof)
status output is internally connected to
GND with a 10 kOhm resistor
Status OUT
ESX10-TB-114/-124 (signal status OUT),
at U
S
= +24 V
+24 V = S1 is ON, load output connected
through 0V = S1 is ON, load output blocked
and/or switch S1 is OFF
red LED lighted
OFF condition
0 V level at status output when:
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switch S1 is in ON position, but device is
still in switch-on delay
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switch S1 is OFF, or control signal OFF,
device is switched off
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no operating voltage U
S
Signal output F
ESX10-T.-101/-102
Electrical data
potential-free signal contact
max. DC 30 V/0.5 A, min. 10 V/10 mA
ON condition LED green voltage U
S
applied, switch S1 is in ON
position
no overload, no short circuit
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device switched off
OFF condition LED off
(switch S1 is in OFF position)
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no voltage U
S
applied
Fault condition LED orange overload condition > 1.1 x I
N
up to
electronic disconnection
Fault condition LED red electronic disconnection upon
overload or short circuit
ESX10-TB-101
single signal, make contact
contact SC/SO-SI open
ESX10-TB-102
single signal, break contact
contact SC/SO-SI closed
signal output fault conditions:
Fault
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no operating voltage U
S
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ON/OFF switch S1 is in OFF position
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red LED lighted
(electronic disconnection)
Reset input RE
ESX10-T.-124/-127
Electrical data
voltage: max. + DC 32 V
high > DC 8 V ≤ DC 32 V
low ≤ DC 3 V > 0 V
power consumption typically 2.6 mA
(+DC 24 V)
min. pulse duration typically 10 ms
The electronically blocked
Reset signal RE
(terminal 22)
ESX10-TB-124/-127 may remotely be
reset via an external momentary switch due
to the falling edge of a +24 V pulse.
A common reset signal can be applied to
several devices simultaneously.
Switched on devices remain unaffected.
Control input IN+
ESX10-T.-114
Electrical data
see reset input RE
Control signal IN+
+24V level (HIGH): device will be switched
(terminal 21)
on by a remote ON/OFF signal
0 V level (LOW): device will be switched
off by a remote ON/OFF signal
Switch S1 ON/OFF
unit can only be switched on with S1 if a
HIGH level is applied to IN+
ON:
OFF:
LED green
LED red
Terminals
screw terminals
max. cable cross section
flexible with wire end ferrule w/wo plastic sleeve
0.5 – 10 mm
2
wire stripping length
10 mm
tightening torque (EN 60934)
1.5 – 1.8 Nm
multi-lead connection
(2 identical cables)
rigid/flexible
0.5 – 4 mm
2
flexible with wire end ferrule without plastic sleeve 0.5 – 2,5 mm
2
flexible with TWIN wire end ferrule with plastic sleeve 0.5 – 6 mm
2
Terminals
aux. contacts
screw terminals
M3
max. cable cross section
flexible with wire end ferrule w/wo plastic sleeve 0.25 – 2.5 mm
2
wire stripping length
8 mm
tightening torque (EN 60934)
0.5 – 0.6 Nm
Housing material
moulded
Mounting
symmetrical rail to EN 50022-35x7.5
Ambient temperature
Storage temperature
Humidity
-25...+50 °C (without condensation, see
EN 60204-1)
-40...+70 °C
96 hrs/95 % RH/40 °C to
IEC 60068-2-78, test Cab.
climate class 3K3 to EN 60721
3 g, test to IEC 60068-2-6 test Fc
housing: IP20 EN 60529
terminals: IP20 EN 60529
emission: EN 61000-6-3
susceptibility: EN 61000-6-2
0.5 kV/2 pollution degree 2
re-inforced insulation in operating area
max. DC 32 V (load circuit)
n/a, only electronic disconnection
CE-logo
UL 2367, File # E306740,
Solid State Overcurrent Protectors
UL 508, File # E322549
UL 1604, File # E320024 (class
Ι,
division 2,
groups A, B, C, D)
CSA C22.2 No: 14, File # 16186
CSA C22.2 No: 142, File # 16186
CSA C22.2 No: 213 (class
Ι,
division 2)
12.5 x 80 x 83 mm
approx. 65 g
backup fuse for ESX10-T not required
because of the integral
redundant fail-safe element
LINE+ / LOAD+ / 0V
M4
Vibration
Degree of protection
EMC
(EMC directive, CE logo)
Insulation co-ordination
(IEC 60934)
dielectric strength
Insulation resistance
(OFF condition)
Approvals
(ESX10-TA/-TB/-TD)
Approvals
(ESX10-TA/-TB)
Dimensions (W x H x D)
Mass
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1642
Electronic Circuit Protector ESX10-T.-DC 24 V
Ordering configuration for ATEX versions: ...-E
Type No.
ESX10
Electronic Circuit Protector, with current limitation
Mounting and design
TA
rail mounting, without signal contact
TB
rail mounting, with signal contact and slot
for busbars and jumpers
Version
1
standard, without physical isolation
Signal input
0
without signal input
1
with control input IN+
2
with reset input RE,
Signal outputs
0
without signal output
1
signal contact N/O
2
signal contact N/C
4
status output SF
7
inverse status output SF
Operating voltage
DC 24 V
rated voltage DC 24 V
Current rating
0.5...12 A
Approvals
E
ATEX
ESX10 - TB-1
0 1- DC 24 V- 6 A -E
Ordering information
Ordering information
Type No.
ESX10
Electronic Circuit Protector, with current limitation
Mounting and design
TA
rail mounting, without signal contact
TB
rail mounting, with signal contact and slot
for busbars and jumpers
TD
rail mounting, with signal contact and
switch for 3-step current rating adjustment
Version
1
standard, without physical isolation in the event of a failure
Signal input
0
without signal input
1
with control input IN+, only ESX10-T-114
with reset input RE, only ESX10-T-124, ESX10-T-127
2
Signal outputs
0
without signal output (only ESX10-TA)
1
signal contact N/O
2
signal contact N/C
4
status output SF
(only ESX10-T-114, ESX10-T-124)
7
inverse status output SF
(only ESX10-T-127
Operating voltage
DC 24 V
rated voltage DC 24 V
Current rating
0.5 A
1A
2A
3A
4A
6A
8A
10 A
12 A
16 A
(only
ESX10-TB-101)
0.5/1/2 A
adjustable (only ESX10-TD-...-X278)
2/4/6 A
adjustable (only ESX10-TD-...-X279)
6/8/10 A
adjustable (only ESX10-TD-...-X280)
2/3/4 A
adjustable (only ESX10-TD-101-...-X282)
ESX10 - TA
1
0
0 - DC 24 V -6 A
ordering example
Table 1: voltage drop, current limitation, max. load current
current
rating I
N
typically voltage
drop U
ON
at I
N
active current
limitation I
Limit
(typically)
max. load current at
100% ON duty
T
a
= 40 ° C
T
a
= 50 ° C
0.5 A
1A
2A
3A
4A
6A
8A
10 A
12 A
[0.5/1/2 A]
[2/3/4 A]
[2/4/6 A]
[6/8/10 A]
70 mV
80 mV
130 mV
80 mV
100 mV
130 mV
120 mV
150 mV
180 mV
70/80/130 mV
130/80/100 mV
130/100/130 mV
130/120/150 mV
1.8 x I
N
1.8 x I
N
1.8 x I
N
1.8 x I
N
1.8 x I
N
1.8 x I
N
1.5 x I
N
1.5 x I
N
1.3 x I
N
1.4 x I
N
1.4 x I
N
1.4 x I
N
1.4 x I
N
0.5 A
1A
2A
3A
4A
6A
8A
10 A
12 A
0.5/1/2 A
2/3/4 A
2/4/6 A
6/8/10 A
0.5 A
1A
2A
3A
4A
5A
7A
9A
10,8 A
0.5/1/2 A
2/3/4 A
2/4/5 A
5/7/9 A
Attention!
Please see separate data sheet for ESX10-TB-101-DC 24 V-16 A.
Description of ESX10-T signal inputs and outputs see wiring
diagrams.
4
Notes
l
l
Attention:
when mounted side-by-side without convection the ESX10-T should not carry
more than 80 % of its rated load with 100 % ON duty due to thermal effects.
The user should ensure that the cable cross sections of the relevant
load circuit are suitable for the current rating of the ESX10-T used.
Automatic start-up of machinery after shut down must be prevented
(Machinery Directive 98/37/EG and EN 60204-1). In the event of
a short circuit or overload the load circuit will be disconnected
electronically by the ESX10-T.
Preferred types
Preferred types
ESX10-TA/TB
ESX10-TA-100-DC24V-
ESX10-TB-101-DC24V-
ESX10-TD
ESX10-TD-101-DC24V-
Standard current ratings (A)
0.5
x
x
1
x
x
2
x
x
3
x
x
4
x
x
6
x
x
8
x
x
10
x
x
12
x
x
0.5 / 1 / 2
2/4/6
6 / 8 / 10
0.5
1
2
3
4
6
8
10
12
0.5 / 1 / 2
x
2/4/6
x
6 / 8 / 10
x
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45
Electronic Circuit Protector ESX10-T.-DC 24 V
Table 2: ESX10-T - product version
Version
Signal input
Signal output
Signal output F (Signal contact)
ESX10-..
without
Control input
ON/OFF +24 V
Control IN+
Reset input
+24 V
RE
without single signal
N/O
(normally
open NO)
x
x
x
x
x
x
x
x
Status output SF
Status OUT
0 V = OK
single signal without Status OUT
N/C
+24 V = OK
(normally
closed NC)
x
x
x
x
x
-TA
-TB/-TD
-TB/-TD
-TB/-TD
-TB/-TD
-TB/-TD
-100
-101
-102
-114
-124
-127
x
x
x
x
Terminal wiring diagram ESX10-TB-124 (Example)
Schematic diagram ESX10-TB-124 (Example)
ESX10-TB-124-…
LINE (+)
DC 24 V
Failsafe
LINE+
1
22
23
electronic control unit
22 23
Germany
Elektronischer Sicherungsautomat
Electronic Circuit Protector
ESX10-TB-124-DC24V-xxA
www.e-t-a.com
xxxx
S1
ON/OFF
SF 23
RE 22
TB-124
ok
2
LOAD+
status indication
green/orange/red
0V
3
2 LOAD+
R
sense
4
on
off
xxA
r
e
s
e
t
RE
reset input
SF
status output
LOAD (+)
load output
0V
Approvals
ESX10-TA/-TB and -TD
Authority
UL
UL
UL
GL
Standard
UL 2367
UL 1604
UL 508
C22.2 No 14
Rules VI, part 7,
GL 2012, category
C, EMC1
Standard
C22.2 No 14
C22.2 No 142M
C22.2 No 213-M
ATEX 94/9/EC
Annex VIII
EN 60079-0
EN 60079-11
EN 60079-15
Voltage rating
DC 24 V
DC 24 V
DC 24 V
DC 24 V
Current ratings
0.5 A…16 A
0.5 A…12 A
0.5 A…16 A
0.5 A...12 A
ESX10-TA and -TB
Authority
CSA
Voltage rating
DC 24 V
Current ratings
0.5...12 A
TÜV
DC 24 V
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1642
Electronic Circuit Protector ESX10-T.-DC 24 V / Installation guidelines and safety instructions
EG-declaration of Conformity for ATEX-version ESX10-TA/-TB-...-E
4
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