Electronic Circuit Protector ESX10-T.-DC 24 V
Description
The model ESX10-T extends our product group of electronic over-
current protection devices for DC 24 V applications. At a width of only
12.5 mm it provides selective protection for all DC 24 V load circuits.
This is achieved by a combination of active electronic current limitation
in the event of a short circuit and overload disconnection typically from
1.1 times rated current. The ESX10-T is track-mountable and provides
ease of installation for groups of devices with several circuits.
DC 24 V switch-mode power supplies are widely used in automation
technology today. In the event of an overload, however, they turn down
the output voltage which is intended to power all connected loads. So
if there is a failure in a single load of the system, the supply voltage will
break down also in all other load circuits. Not only does this frequently
cause undefined fault conditions, but it can even lead to machine stop-
pages or system downtimes.
This is exactly where the ESX10-T comes in by responding to the overload
conditions faster than the switch-mode power supply. The max. possible
overcurrent is limited to typically 1.3 ... 1.8 times rated current (see table
1). This allows switching on capacitive loads of up to
75,000 µF,
but a dis-
connection will only be effected in the event of an overload or short circuit.
For adjustment to the load conditions the current rating can be selected in
fixed values from 0.5 A ... 12 A or in adjustable ratings, e.g. 2 A/4 A/6 A.
Status and failure indication is by means of a multi-coloured LED, an inte-
gral short circuit proof status output or by single or group alarms. Remote
actuation is possible by a remote reset signal or a remote control signal
ON/OFF. The manual ON/OFF switch on the device itself allows start-up
of certain individual load circuits.
As soon as the ESX10-T detects overload or short circuit in its load
circuit, it blocks the load output transistor and disconnects the current
flow in the faulty circuit. After remedy of the failure, the load output of
the ESX10-T is re-activated by an electronic reset signal or manually by
actuating 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
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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.
Symmetrical rail mounting
Ease of wiring through busbar LINE+ and 0 V as well as signal bars
and bridges.
Other versions available with ATEX approval
Marking:
II 3G Ex nA IIB T4 Gc X
ESX10-TA-...-E and ESX10-TB-...E
Please observe the separate user manual:
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
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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
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http://www.e-t-a.de/qr1006/
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
1
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
Control input IN+
Electrical data
Control signal IN+
(terminal 21)
(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/-127
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
Status OUT
ESX10-TB-127 (signal status OUT
inverted), at U
B
= + 24 V
+ 24 V = S1 is ON, load output locked
red LED lighted
0 V = S1 is ON, load output connected
and/or switch S1 is OFF
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
Fault
signal output fault conditions:
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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
Reset signal RE
The electronically blocked
(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.
Switch S1 ON/OFF
ESX10-T.-114
see reset input RE
+24V level (HIGH): device will be switched
on by a remote ON/OFF signal
0 V level (LOW): device will be switched
off by a remote ON/OFF signal
unit can only be switched on with S1 if a
HIGH level is applied to IN+
ON:
OFF:
LED green
LED red
LED display
General data
Fail-safe element:
Terminals
screw terminals
max. cable cross section
rigid and flexible
0.5 – 16 mm
2
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 60715-35x7.5
Ambient temperature
-25...+60 °C
1)
(without condensation, see
EN 60204-1)
1)
Ambient temperature range can differ
depending on approvals
-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 Marking
to
2014/30/EU
UL 2367, File # E306740,
Solid State Overcurrent Protectors
UL 508, File # E322549 „Industrial
Control Equipment“ GL, Certificate #
4676212 HH
UL 1604, File # E320024
(class
Ι,
division 2, groups A, B, C, D)
CSA C22.2 No: 14, File # 016186
CSA C22.2 No: 142, File # 016186
CSA C22.2 No: 213 (class
Ι,
division 2)
ATEX 2014/34/EU II 3G Ex nA IIB T4 Gc X
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
Storage temperature
Humidity
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)
(ESX10-TA/-TB)
Dimensions (W x H x D)
Mass
2
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1716
Electronic Circuit Protector ESX10-T.-DC 24 V
Ordering number code 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+ (only ESX10-T.-114)
2
with reset input RE (only ESX10-T.-124, ESX10-T.-127)
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...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,
U
B
DC24V
T
a
= 40 ° C
T
a
= 50 ° C
T
a
= 60 ° 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
6A
8A
10 A
11 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
6A
8A
9.8 A
9.8 A
0,5/1/2 A
2/3/4 A
2/4/6 A
6/8/9.8 A
Attention!
Please observe separate data sheet for ESX10-TB-101-DC 24 V-16 A.
Description of ESX10-T signal inputs and outputs see wiring
diagrams.
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Notes
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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 2006/42/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.
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.
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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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
23
S1
Electronic Circuit Protector
ESX10-TB-124-DC24V-xxA
ON/OFF
22
SF 23
RE 22
xxxx
TB-124
N
Y
ok
2
LOAD+
status indication
green/orange/red
0V
3
2 LOAD+
R
sense
4
on
off
xxA
r
e
s
e
t
M
A
RE
G
E
reset input
R
SF
status output
LOAD (+)
load output
0V
Approvals
ESX10-TA/-TB and -TD
Authority
UL
UL
UL
GL
Standard
UL 2367
UL 1604 (Class
I,
Division 2, Groups A, B, C, D)
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 (Class
I,
Division 2)
ATEX 2014/34/EU
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
ESX10-TA and -TB
Authority
CSA
Voltage rating
DC 24 V
Current ratings
0.5...12 A
Current ratings
0.5 A…16 A
0.5 A…12 A
0.5 A…16 A
0.5 A...12 A
TÜV
DC 24 V
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Electronic Circuit Protector ESX10-T.-DC 24 V / Installation guidelines and safety instructions
Declaration of Conformity for ATEX version ESX10-TA/-TB-...-E
4
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