Electronic Circuit Protector ESX10
Description
Electronic circuit protector type ESX10 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 responds much faster
to overload or short circuit conditions than the switch-mode power
supply. This is achieved by active current limitation. The ESX10 limits
the highest possible current to values between 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
lamp loads, 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 can be 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 potential-free
signal contact.
The ESX10, with a width of only 12.5 mm, can be plugged into the
E-T-A power distribution socket Module 17plus 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 MOSFET and the load circuit may be re-activated
via the remote electronic reset input or manually by means of the
ON/OFF button. When starting up the system, the load circuit may
also be manually disconnected.
US patent number:
US 6,490,141 B2
ESX10
Technical data
Operating data
Operating voltage U
S
Current rating I
N
Closed current I
0
Status indication
by means of
(Tambient = 25 °C, operating voltage US = DC 24 V)
Features
l
l
l
l
l
l
l
l
l
l
l
Selective load protection, electronic trip characteristics.
Active current limitation for safe connection of capacitive loads
up to 75,000 µF and on overload/short circuit.
Current ratings 0.5 A...12 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).
Clear status and failure indication through LED, status output SF
or Si contact F.
Electronic reset input RE (option).
Integral fail-safe element.
Width per unit only 12.5 mm.
Plug-in mounting utilising power distribution system Module 17plus
or SVSxx optionally (see product group Power distribution systems)
Additional versions with ATEX approval available.
Marking:
II 3G Ex nA IIB T4 Gc X
ESX10-...-E
Please observe separate operating instructions:
DC 24 V (18...32 V)
fixed current ratings: 0.5 A, 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
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
l
status output SF (option)
l
potential-free signal contact F (option)
l
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 (see table 1)
Trip time
see time/current characteristics
for electronic disconnection typically 3 s at I
Load
> 1.1 x I
N
typically 3 s...100 ms at I
Load
> 1.8 x I
N
(or 1.5 x I
N
/1.3 x I
N
)
Temperature disconnection internal temperature monitoring with
electronic disconnection
Low voltage monitoring
load output
with hysteresis, no reset necessary
load “OFF” at U
S
< 8 V
Starting delay t
start
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
Load circuit
Load output
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Electronic Circuit Protector ESX10
Technical data
Status output SF
Electrical data
(Tambient = 25°C, operating voltage US = DC 24 V)
Technical data
Reset input RE
Electrical data
(Tambient = 25°C, operating voltage US = DC 24 V)
4
ESX10-104/-124
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
ESX10-104/-106/ -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
Status OUT
ESX10-127 (signal status OUT inverted),
at U
S
= +24 V
+24 V = S1 is ON, load output blocked,
red LED lighted
0 V = S1 is ON, load output connected
through and/or switch S1 is in OFF position
OFF condition
0 V level at status output when:
l
switch S1 is in ON position, but device is
still in switch-on delay
l
switch S1 is OFF, or control signal OFF,
device is switched off
l
no operating voltage U
S
Signal output F
ESX10-103/-115/-125
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
l
device switched off
OFF condition LED off
(switch S1 is in OFF position)
l
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
device switched off with control signal
(switch S1 is in ON position)
ESX10-101
single signal, make contact
contact SC/SO-SI open
single signal, break contact
ESX10-102
contact SC/SO-SI closed
group signal change-over contact
ESX10-103
contact SC-SO open, SC-SI closed
ESX10-115/-125
group signal, make contact
contact SC-SO open
signal output fault conditions:
Fault
l
no operating voltage U
S
l
ON/OFF switch S1 is in OFF position
l
red LED lighted (electronic disconnection)
Table 1: voltage drop, current limitation, max. load current
current
rating I
N
typically voltage
drop U
ON
at I
N
active current limitati-
on (typically)
max. load current at
100 % ON duty
T
U
= 40 °C
0.5 A
1A
2A
3A
4A
6A
8A
10 A
12 A
70 mV
80 mV
130 mV
80 mV
100 mV
130 mV
120 mV
150 mV
180 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
0.5 A
1A
2A
3A
4A
6A
8A
10 A
12 A
T
U
= 50 °C
0.5 A
1A
2A
3A
4A
5A
7A
9A
10.8 A
Reset signal RE
(= terminal 13,14 or 12
of Module 17plus)
Caution: unused slots
have to be fitted with
jumpers
Control input IN+
Electrical data
Control signal IN+
Switch S1 ON/OFF
General data
Fail-safe element:
ESX10-124/-125
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 ESX10-124/-127
may remotely be reset via an external
momentary switch due to the falling edge of
a +24 V pulse.
The reset signal will be fed in terminal 13, 14
or 12 of Module 17plus and is internally
pre-wired.
The reset simultaneously affects all blocked
ESX10-124/-127 channels of the power
distribution system, all switched on
ESX10-124/-127 channels remain
unaffected. With type ESX10-125 the reset
only affects the device concerned. By
connecting the individual terminals 12 of
the Module 17plus a joint reset signal for
all ESX10-125 may be generated.
ESX10-115
see reset input RE
+24 V 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+
backup fuse for ESX10 not required
because of the integral
redundant fail-safe element
6.3 mm to DIN 46244-A6.3-0.8
moulded
plug-in mounting utilising power distribution
system Module 17plus or SVSxx
0...+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: IP30 DIN 40050
terminals: IP00 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. DC 32 V (load circuit)
n/a, only electronic disconnection
CE logo
UL 2367, File # E306740
Solid State Overcurrent Protectors
cURus: UL 508, CSA C22.2 No. 14,
File # E322549
UL 1604, File # E320024
(class
I,
division 2, groups A, B, C, D)
CSA C22.2 No. 142, File # 16186
CSA C22.2 No. 213 (class
I,
division 2)
12.5 x 70 x 60 mm
approx. 40 g
Blade terminals
Housing
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
Dimensions (W x H x D)
Mass
Attention:
when mounted side-by-side without convection the ESX10-0.. should not
carry more than 80 % of its rated load with 100 % ON duty due to thermal effects.
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1642
Electronic Circuit Protector ESX10
Ordering configuration for ATEX versions: ...-E
Type No.
ESX10
Electronic Circuit Protector for DC 24 V applications
Version
1
standard, without physical isolation in the event of a failure
Signal input
0
without signal input
1
with control input IN+
2
with reset input RE
Signal outputs
0
without
3
signal output F (group signal, change-over)
4
status output SF
5
signal output F (group signal, N/O
only ESX10-115 and ESX10-125)
Operating voltage
DC 24 V
rated voltage DC 24 V
Current rating
0.5...12 A
Approvals
E
ATEX
ESX10 -1
0
3 - DC 24 V -6 A
E
ordering example
Approvals
Authority
UL
UL
UL cURus
CSA
Standard
UL 2367
UL 1604
UL 508
CSA C22.2 No. 14
C22.2 No. 142
C22.2 No. 213
(class I, division 2)
ATEX 94/9/EC
Annex VIII
EN 60079-0
EN 60079-11
EN 60079-15
Rules VI, part 7,
GL 2012, category
C, EMC1
Voltage
ratings
DC 24 V
DC 24 V
DC 24 V
DC 24 V
Current
ratings
0.5...12 A
0.5...12 A
0.5...16 A
0.5...12 A
TÜV Süd
DC 24 V
GL
DC 24 V
0.5...12 A
Ordering information
Type No.
ESX10
Electronic Circuit Protector for DC 24 V applications
Version
1
standard, without physical isolation in the event of a failure
Signal input
0
without signal input
1
with control input IN+, only ESX10-115
2
with reset input RE, only ESX10-124
Signal outputs
0
without, only ESX10-100
3
signal output F (group signal, change-over)
only ESX10-103
4
status output SF (+24 V = OK),
only ESX10-104, ESX10-124
5
signal output F (group signal, N/O
only ESX10-115 and ESX10-125)
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
ESX10 - 1
0
3 - DC 24 V - 6 A
ordering example
Schematic diagram ESX10-124
ESX10-124-…
LINE (+)
DC 24 V
Failsafe
electronic control unit
S1
ON/OFF
status indication
green/orange/red
4
RE
RE
SF
reset input
reset input
status output
LOAD (+)
load output
R
sense
GND (-)
Description of ESX10 signal inputs and outputs (wiring diagrams)
see next page.
Preferred types
Preferred types
ESX10-103-DC24V
Standard current ratings (A)
1
x
2
x
3
x
4
x
6
x
8
x
10
x
12
x
Please note:
l
The user should ensure that the cable cross sections of the relvant
load circuit are suitable for the current rating of the ESX10 used.
l
Automatic start-up of machinery after shut down must be preven-
ted (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.
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Electronic Circuit Protector ESX10
Terminal wiring diagram ESX10-124
ESX10
Information to UL-Approvals/CSA-Approvals
ESX10
UL1604
UL File # E320024
Operating Temperature Code T4 A / 0 °C to 50 °C
- This equipment is suitable for use in Class
I,
Division 2,
Groups A, B, C and D or non-hazardous locations only
WARNING:
- Exposure to some chemicals may degrade the sealing properties
of materials used in the following device: relay
Sealant Material:
Generic Name: Modified diglycidyl ether of bisphenol A
Supplier:
Fine Polymers Corporation
Type:
Epi Fine 4616L-160PK
Casing Material:
Generic Name: Liquid Crystal Polymer
Supplier:
Sumitomo Chemical
Type:
E4008, E4009, or E6008
RECOMMENDATION:
- Periodically inspect the device named above for any degradation
of properties and replace if degradation is found
Electronic Circuit Protector
ESX10-124-DC 24 V-xxA
Made in Germany
XXX
Reset IN
Failsafe
Status OUT
13
RE
14
RE
11
12
SF
Dimensions
60
2.36
60
2.36
operating area
operating area
1
2
LOAD +
LINE +
GND
WARNING – EXPLOSION HAZARD:
- Do not disconnect equipment unless power has been removed or
the area is known to be non-hazardous
- Substitution of any components may impair suitability for Class
I,
Division 2
ESX10
UL2367
Non-hazardous use - UL File # E306740
ESX10
UL 508, CSA C22.2 No. 14
Non-hazardous use - UL File # E322549
ESX10
CSA C22.2 No. 142 - File # 16186
CSA C22.2 No. 213 (Class
I,
Division 2) - File # 16186
Class 2
Meets requirement for Class 2 current limitation
(ESX10-...-0.5 A/1 A/2 A/3 A)
70 70
2.75 2.75
mounting area
mounting area
4
10.3 10.3
.405 .405
6x6.8=40.8
6x.267=1.60
6x6.8=40.8
50
6x.267=1.60
1.97
50
1.97
on
on
off
off
6.8
.267
6.8
.267
reverse plug-in
protection
reverse plug-in
protection
blade terminals
DIN 46244-6.3-0.8
blade terminals
DIN 46244-6.3-0.8
UL1604
12.3 12.3
.484 .484
UL File # E320024
Electronic Circuit Protector
ESX10
C22.2 No.213
CSA File # 16186
This is a metric design and millimeter dimensions take precedence (
6A 6A
This equipment is suitable for use in Class
I,
Division 2, Groups A,
B, C and D or non-hazardous locations only. T4A / 0° C to 50° C
Warnings:
1. Remove power before disconnecting device
or the area is known to be nonhazardous.
2. Components substitutions may impair suitability of Class
I,
Div 2.
3. Chemical exposure may degrade internal relay's sealing property.
UL2367
Non-hazardous use
UL File # E306740
ok
ok
mm
)
inch
UL508
CSA C22.2 No.14
Non-hazardous use
UL File # E322549
Refer to data sheet / installation guidelines for installation
and safety instructions.
E-T-A Elektrotechnische Apparate GmbH
Industriestraße 2-8 · D-90518 ALTDORF
GERMANY
Phone: +49 9187 10-0 · Fax +49 9187 10-397
E-Mail: info@e-t-a.de · www.e-t-a.de
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Electronic Circuit Protector ESX10
EG-declaration of Conformity for ATEX-version ESX10-TA/-TB-...-E
4
Accessories
Module 17plus
For technical data see section Power Distribution Systems
slot for fitting labels from
Phoenix, Weidmüller, Wieland
70
2.75
I>
Failsafe
ok
Control unit
on / off
LOAD (+)
LINE (+)
Gnd
RE
RE
SI
47
1.85
42.5
1.67
17 plus
63
2.48
115
4.53
G-profile
EN 50035-G32
symmetrical rail
EN 50022-35x7.5
57
2.24
6
.236
25
.984
max. 38
max. 1.50
25
.984
slot for busbar
right-side terminal block
2
2
12
12
11
14
1 Line 1 Line
left-side terminal block
11
module
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