Datasheet
Electronic Circuit Protection
ESX10-T
selected in fixed values from 0.5 A...12 A. Failure and
status indication are provided by a multicolour LED
and an integral short-circuit-proof status output or
a relay 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 and reset of individual load circuits.
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.
C
US
Zone 2
Electronic circuit protection type ESX10-T is designed to
ensure selective disconnection of 24VDC load systems.
24VDC 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.
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 20,000 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
Features
• Selective load protection, electronic trip characteristics
• Active current limitation for safe connection of capacitive
loads up to 20,000 µF and on overload/short circuit
• Current ratings 0.5 A...12 A
• Reliable overload disconnection with 1.1 x In plus,
even with long load lines or small cable cross
sections (see table 4)
• 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
• Hazardous area approved– Class 1 Div 2, Zone 2,
ATEX Zone 2
Canada
Weidmuller, Canada
10 Spy Court
Markham, Ontario L3R 5H6
Telephone: (800) 268-4080
Facsimile: (905) 475-2798
Email: info1@weidmuller.ca
Website: www.weidmuller.ca
Mexico
Weidmuller, Mexico
Blvd. Hermanos Serdán 698
Col. San Rafael Oriente
Puebla, Puebla, Mexico
C.P. 72029
Telephone: 01 222 2686267
Facsimile: 01 222 2686219
Email: clientes@weidmuller.com.mx
Website: www.weidmuller.com.mx
United States
Weidmuller
821 Southlake Blvd.
Richmond, Virginia 23236
Telephone: (800) 849-9343
Facsimile: (804) 379-2593
Email: info@weidmuller.com
Website: www.weidmuller.com
Electronic Circuit Protection
Approvals
Authority
UL2367 (E306740)
UL1604 (E322549)
(class 1, div. 2, group A, B, C, D)
UL508/ cUL 508
CSA file 165971 (LR16186):
CSA C22.2 No: 213 (class I, div. 2)
Groups A, B, C, D, T5
CSA C22.2 No: 14
Class 2
Meets requirements for Class 2 current limitation
(ESX10-T... 0.5 A / 1 A / 2 A / 3 A
Voltage rating
24VDC
24VDC
24VDC
24VDC
24VDC
Current ratings
0.5...12 A
0.5...12 A
0.5...12 A
Status OUT
0.5...12 A
0.5...12 A
ESX10-T
Technical data
Status output SF
Electrical data
(Tambient = 40°C, operating voltage Ub = 24VDC)
ESX10-TB-114/-124/
plus-switching signal output,
nominal data: 24VDC / max. 0.2 A (short circuit proof)
status output is internally connected to
GND with a 10 kOhm resistor
ESX10-TB-114/-124 (signal status OUT),
at Ub = +24 V
+24 V = S1 is ON, load output connected through
0V = S1 is ON, load output blocked and/or
switch S1 is OFF
ESX10-TB127 reverse
red LED lit
0 V level at status output when:
• switch S1 is in ON position, but device is
still in switch-on delay
• switch S1 is OFF, or control signal OFF,
device is switched off
• no operating voltage Ub
ESX10-TB-101/-102
potential-free signal contact
max. 30VDC/0.5 A, min. 10 V/10 mA
voltage Ub applied, switch S1 is in ON position
no overload, no short circuit
• device switched off (switch S1 is in OFF position)
• no voltage Ub applied
overload condition > 1.1 x In up to
electronic disconnection
electronic disconnection upon
overload or short circuit
device switched off with control signal
(switch S1 is in ON position)
single signal, make contact
contact SC/SO-SI open
single signal, break contact
contact SC/SO-SI closed
signal output fault conditions:
• no operating voltage Ub
• ON/OFF switch S1 is in OFF position
• red LED lighted
(electronic disconnection)
ESX10-TB-124/-127
voltage: max. +32VDC
high > 8VDC
≤
32VDC
low
≤
3VDC > 0 V
power consumption typically 2.6 mA
(+24VDC)
min. pulse duration typically 10 ms
The electronically blocked ESX10-TB-124
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.
ESX10-TB-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+
OFF condition
Technical data
Operating data
Operating voltage Ub
Current rating In
Closed current I0
Status indication
by means of
(Tambient = 40°C, operating voltage Ub = 24VDC)
24VDC (18...32 V)
fixed current ratings: 0.5, 1 A, 2 A, 3 A, 4 A,
6 A, 8 A, 10 A, 12 A
ON condition: typically 20...30 mA
depending on signal output
•
multicolour LED:
GREEN: unit is ON, power-MOSFET
is switched on
- status output SF ON,
supplies + 24VDC
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 (Ub < 8 V)
- after switch-on till the end
of the delay period
• status output SF (option)
• potential-free signal contact F (option)
• ON/OFF/ condition of switch S1
Power-MOSFET switching output
(high side switch)
typically 1.1 x In (1.05...1.35 x In)
active current limitation (see table 1)
see time/current characteristics
typically 3 s at I
Load
> 1.1 x In
typically 3 s...100 ms at I
Load
> 1.8 x In
(or 1.5 x In/1.3 x In)
internal temperature monitoring with
electronic disconnection
Signal output F
Electrical data
ON condition LED green
OFF condition LED off
Fault condition LED orange
Fault condition LED red
ESX10-TB-101
ESX10-TB-102
Fault
Reset input RE
Electrical data
Load circuit
Load output
Overload disconnection
Short-circuit current IK
Trip time
for electronic disconnection
Reset signal RE
(terminal 22)
Temperature disconnection
Low voltage monitoring
load output
with hysteresis, no reset required
load “OFF” at Ub < 8 V
Starting delay t
start
typically 0.5 sec after every switch-on
and after applying Ub
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
Control input IN+
Electrical data
Control signal IN+
(terminal 21)
Switch S1 ON/OFF
2
ESX10-T
Technical data
General data
Fail-safe element:
(Tambient = 40°C, operating voltage Ub = 24VDC)
backup fuse for ESX10-T not required
because of the integral
redundant fail-safe element
LINE+ / LOAD+ / 0V
M4
20-6 AWG (0.5 - 10 mm
2
)
Electronic Circuit Protection
Mounting
Ambient temperature
Storage temperature
Humidity
Vibration
Degree of protection
EMC
(EMC directive, CE logo)
Insulation co-ordination
(IEC 60934)
dielectric strength
Insulation resistance
(OFF condition)
Approvals
Terminals
screw terminals
max. cable cross section
flexible with wire end ferrule w/wo plastic sleeve
multi-lead connection
(2 identical cables)
rigid/flexible
flexible with wire end ferrule without plastic sleeve
flexible with TWIN wire end ferrule with plastic sleeve
wire stripping length
tightening torque (EN 60934)
aux. contacts
Terminals
screw terminals
max. cable cross section
flexible with wire end ferrule w/wo plastic sleeve
wire stripping length
tightening torque (EN 60934)
Housing material
moulded
20-11 AWG (0.5 - 4 mm
2
)
20-13 AWG (0.5 - 2.5 mm
2
)
20-9 AWG (0.5 - 6 mm
2
)
10 mm
1.2 Nm
M3
23-13 AWG (0.25 – 2.5 mm
2
)
8 mm
0.5 Nm
symmetrical rail to EN 50022-35x7.5
0...+50 °C (without condensation, see EN 60204-1)
-20...+70 °C
96 hrs/95 % RH/40 °C to IEC 60068-2-78-Cab
climate class 3K3 to EN 60721
3 g, test to IEC 68-2-6 test Fc
housing: IP20 DIN 40050
terminals: IP20 DIN 40050
emission: EN 61000-6-3
susceptibility: EN 61000-6-2
0.5 kV/2 pollution degree 2
re-inforced insulation in operating area
max. 32VDC (load circuit)
n/a, only electronic disconnection
UL2367, File E306740,
Solid State Overcurrent Protectors
UL1604 (class I, div. 2, zone 2), UL508, CE logo
CSA C22.2 No. 142 - file 165971, C22.2 No. 213 - file
165971, C1D2 Groups A, B, C, D, Temp Code T5;
Ambient 0°-40°C
12.5 x 80 x 83 mm
approx. 65 g
Dimensions (W x H x D)
Mass
Table 1:
voltage drop, current limitation, max. load current
current rating
In
0.5 A
1A
2A
3A
4A
6A
8A
10 A
12 A
typically voltage drop active current
Uon at In
limitation (typically)
70 mV
1.8 x In
80 mV
1.8 x In
130 mV
1.8 x In
80 mV
1.8 x In
100 mV
1.8 x In
130 mV
1.8 x In
120 mV
1.5 x In
150 mV
1.5 x In
180 mV
1.3 x In
max. load current at 100% ON duty
Tu = 40 °C
Tu = 50 °C
0.5 A
0.5 A
1A
1A
2A
2A
3A
3A
4A
4A
5A
6A
8A
7A
9A
10 A
12 A
10.8 A
Table 2:
Specifications
Protection
CE logo
UL
to EN6052
housing IP30, terminals IP00
to 2004/108/EG and 94/9/EG
UL2367, File No E306740
UL508, File No E322549
UL 1604, File No E320024
CSA C22.2 No 14, File No 165971 (LR16186)
CSA C22.2 No 142, File No 165971 (LR16186)
CSA C22.2 No 213, File No 165971 (LR16186)
IEC/EN60079-0 /-14/-15
II 3G Ex nA II B T4 Gc X
CSA
ATEX
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.
Please note:
• 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.
• Refer to UL/CSA file for proper wiring and installation techniques.
Table 3: ESX10-T - Ordering Information
Version
Signal input
Signal output
Signal contact
single signal
single signal
N/O
N/C
(normally open NO)
(normally closed NC)
x
x
x
x
x
x
x
Status output
Status OUT
Positive 24V
= OK
without
Signal
Input
ESX10-TA-100
ESX10-TB-101
ESX10-TB-102
ESX10-TB-114
ESX10-TB-124
ESX10-TB-127
x
x
x
Control input
ON/OFF Reset
Remote
Reset
without
Signal
Output
x
without
Signal
Output
x
x
x
Status OUT
ØV = OK
x
x
x
ESX10-TA-100
Current
Rating
(amps)
0.5
1
2
3
4
6
8
10
12
Circuit
Protection
Part Number
6720005305
6720005301
6720005302
6720005303
6720005304
6720005306
6720005308
6720005310
6720005312
ESX10-TB-101
Current
Rating
(amps)
0.5
1
2
3
4
6
8
10
12
N/O
Contact
Part Number
6720005320
6720005321
6720005322
6720005323
6720005324
6720005326
6720005328
6720005330
6720005332
ESX10-TB-102
Current
Rating
(amps)
0.5
1
2
3
4
6
8
10
12
N/C
Contact
Part Number
6720005340
6720005341
6720005342
6720005343
6720005344
6720005346
6720005348
6720005350
6720005352
ESX10-TB-114*
Current
Rating
(amps)
0.5
1
2
3
4
6
8
10
12
Control
Input
Part Number
6720005360
6720005361
6720005362
6720005363
6720005364
6720005366
6720005368
6720005370
6720005372
ESX10-TB-124**
Current
Rating
(amps)
0.5
1
2
3
4
6
8
10
12
Reset
Input
Part Number
6720005380
6720005381
6720005382
6720005383
6720005384
6720005386
6720005388
6720005390
6720005392
ESX10-TB-127
Current
Rating
(amps)
0.5
1
2
3
4
6
8
10
12
Reset
Input
Part Number
6720005309
6720005319
6720005329
6720005339
6720005349
6720005369
6720005389
6720005399
6720005313
* Control force input on/off
** Reset input only to reset under fault conditions
3
Electronic Circuit Protection
ESX10-T Signal inputs / outputs (wiring diagram)
ESX10-T
ESX10-TA-100
without signal input/output
ESX10-TB-101
without signal input
with signal output F
(single signal, N/O)
ESX10-TB-102
without signal input
with signal output F
(single signal, N/C)
ESX10-TB-114
with control input IN+
(+24VDC)
with status output SF
(+24 V = load output ON)
1
LINE+
1
LINE+
1
LINE+
1
LINE+
14
12
SF 23
13
11
IN 21
2
LOAD+
2
LOAD+
2
LOAD+
2
LOAD+
0V
3
0V
3
0V
3
0V
3
operating condition: 13-14 closed
fault condition:
13-14 open
operating condition: 11-12 open
fault condition:
11-12 closed
operating condition: SF +24 V = OK
fault condition:
SF 0 V
ESX10-TB-124
with reset input RE
(+24VDC
↓)
with status output SF
(+24 V = load output ON)
LINE+
1
ESX10-TB-127
with reset input RE
(+24VDC
↓)
with inverse status output SF
(0 V = load output ON)
LINE+
1
Dimensions
83
3.27
12.5
.492
SF 23
SF 23
RE 22
RE 22
2
LOAD+
2
LOAD+
0V
3
0V
3
80
3.15
label
snap-on socket for
symmetrical rail EN 50022-35x7.5
operating condition: SF +24 V = OK
fault condition:
SF 0 V
operating condition: SF 0 V = OK
fault condition:
SF +24 V
mm
This is a metric design and millimeter dimensions take precedence ( inch )
4
80
3.15
ESX10-T
Time/Current characteristic curve (Ta = 25 °C)
disconnection
typically 1.1 x I
n
1.8 x I
n
*1)
10000
1000
100
trip time in seconds
current limitation
*1)
typically 1.8 x I
n
10
5
1
0.1
0.01
0
1
2
3
...times rated current
*1)
current limitation typically 1.8 x I times rated current at I = 0.5 A...6 A
n
n
Electronic Circuit Protection
• The trip time is typically 3 s in the range between 1.1
and 1.8 x In
*1
)
.
• Electronic current limitation occurs at typically 1.8 x In
*1
)
which means that under all overload conditions
(independent of the power supply and the resistance of
the load circuit) the max. overload before disconnection
will not exceed 1.8 x In
*1
)
times the current rating. Trip
time is between 100 ms and 3 sec (depending on
overload or at short circuit).
5 IK
4
• Without this current limitation a considerably higher
overload current would flow in the event of an overload
or short circuit.
current limitation typically 1.5 x In times rated current at In = 8 A or 10 A
current limitation typically 1.3 x In times rated current at In = 12 A
Table 4: Reliable trip of ESX10-T
Reliable trip of ESX10-T with different cable lengths and cross sections
Resistivity of copper
ρ0
=
Ub = DC 19.2 V
(= 80 % of 24 V)
ESX10-T-selected rating In (in A)
e. g. trip current Iab = 1.25 x In (in A)
R
max
in Ohm = (Ub / I
ab
) - 0.050
The ESX10-T reliably trips from 0 Ohm to max. circuitry resistance R
max
Cable cross section
A
in mm
2
cable length
L
in meter
(= single length)
5
10
15
20
25
30
35
40
45
50
75
100
125
150
175
200
225
250
Example 1:
Example 2:
Example 3:
max. length at 1.5 mm and 3 A
2
0.0178 (Ohm x mm
2
) / m
voltage drop of ESX10-T and tolerance of
trip point (typically 1.1 x In = 1.05 ...
1.35 x In
) have been taken into account.
3
3.75
5.07
6
7.5
2.51
0.14
0.25
0.34
0.5
0.75
1
1.5
ESX10-T trips after 3 s
cable resistance in Ohm = (R0 x 2 x L) / A
1.27
2.54
3.81
5.09
6.36
7.63
8.90
10.17
11.44
12.71
19.07
25.34
31.79
38.14
44.50
50.86
57.21
63.57
0.71
1.42
2.14
2.85
3.56
4.27
4.98
5.70
6.41
7.12
10.68
14.24
17.80
21.36
24.92
28.48
32.04
35.60
0.52
1.05
1.57
2.09
2.62
3.14
3.66
4.19
4.71
5.24
7.85
10.47
13.09
15.71
18.32
20.94
23.56
26.18
0.36
0.71
1.07
1.42
1.78
2.14
2.49
2.85
3.20
3.56
5.34
7.12
8.90
10.68
12.46
14.24
16.02
17.80
0.24
0.47
0.71
0.95
1.19
1.42
1.66
1.90
2.14
2.37
3.56
4.75
5.93
7.12
8.31
9.49
10.68
11.87
0.18
0.36
0.53
0.71
0.89
1.07
1.25
1.42
1.60
1.78
2.67
3.56
4.45
5.34
6.23
7.12
8.01
8.90
0.12
0.24
0.36
0.47
0.59
0.71
0.83
0.95
1.07
1.19
1.78
2.37
2.97
3.56
4.15
4.75
5.34
5.93
214 m
106 m
R1 = 40 m in 1.5 mm
2
and R2 = 5 m in 0.25 mm
2
:
R1 = 0.95 Ohm, R2 = 0.71 Ohm
Total (R1 + R2) = 1.66 Ohm
max. length at 1.5 mm
2
and 6 A
mixed wiring:
(Control cabinet – sensor/actuator level)
5
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