ESS30-S003-DC24V-1A ETA Electronic circuit breaker
Electronic circuit breaker with current limitation
Manual on/off switch (pressure-pressure actuation)
Operating voltage DC 24 V
Rated current 1A
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The ESS30-S electronic circuit breaker with galvanic isolation is the world's only "low energy breaker" for electronic overcurrent protection in DC 24 V applications. For use in decentralised and centralised power supply units, it meets the requirements of DIN EN 60934, UL 1077 as a supplementary protector and UL 1310 as a "Class 2 power unit" (NEC class2). The compact unit is designed for pluggable mounting on the 17plus and 18plus base systems as well as the SVS power distribution systems and guarantees quick and easy installation.
The ESS30-S, which is only 12.5 mm narrow, selectively protects all DC 24 V load circuits. This is achieved by a combination of active electronic current limiting in the event of a short circuit and an overload cut-off at typ. 1.2 x IN. DC 24 V switched-mode power supplies are used very frequently in automation technology. In case of overload, however, they regulate the output voltage that is to supply all connected loads. So if a fault occurs in a single load in the system, the voltage also collapses in all other load circuits. This often results not only in an undefined fault condition, but even in a standstill of the machine or system.
The maximum possible overcurrent is always limited to 1.2 times the selected rated current (see Table 1). This makes it possible to switch on capacitive loads up to 40,000 μF without any problems For adaptation to the load conditions, the rated current is available in fixed values of 0.5 A...10 A and in the adjustable variants 1 A/2 A or 3 A/6 A.
Operating and error states are indicated by a multi-coloured LED and integrated signalling outputs. The manual ON/OFF switch directly on the unit allows targeted commissioning of individual load circuits and resetting after overcurrent-related shutdowns.
Main features:
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Pluggable on power distribution modules 17plus, 18plus and SVSxx
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Galvanic isolation in the event of a fault
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Active linear current limitation
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Capacitive loads up to 40,000 μF
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Fixed current ratings 0.5 A...10 A (0.5A...3.6A NEC Class 2)
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2 levels (1 A/2 A or 3 A/6 A) adjustable via switch on the unit
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Approvals: UL, NEC Class 2, VDE
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Reduces storage costs as one unit covers 2 rated currents
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Offers high flexibility due to pluggability and easy adjustment of the rated currents
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Saves costs, as the units up to 3.6A with UL1310 (NEC Class 2) approval replace the expensive switch-mode power supplies provided for them
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Saves energy costs due to 1/3 lower power loss than comparable solutions
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Increases system availability through clear fault detection and signalling
Technical data:
operating data | |
operating voltage UB | dC 24 V (18...30 V) |
rated current IN | fixed currents: type ESS30-S 0.5 A; 1 A; 2 A; 2 A CL2; 3 A; 3 A CL2; 3.6 A; 3.6 A CL2; 4 A; 6 A; 8 A; 10 A; adjustable: 1 A/2 A or 3 A/6 A |
quiescent current I0 | in ON state: typ. 4 mA with the adjustable typ. 5.5 mA |
tripping current (bimetal) | typ. 0.4 A (only in the event of a fault, until galvanic disconnection) |
signalling of operating status via |
|
load circuit | |
load output | power - MOSFET switching output (positive switching) |
Overload cut-off (ÜL) and Short-circuit current cut-off |
typ. 1.2 x IN with active current limiting |
switch-off times for electron. Switch-off for galvanic isolation |
see time / current characteristic curve Overload switch-off time typ. 500 ms short-circuit switch-off time depending on rated current (see Table 1) typ. 5 s (3...9 s) |
temperature shut-off |
Internal temperature monitoring with galvanic isolation |
undervoltage monitoring |
with hysteresis, no reset necessary: |
switch-on delay tStart | typ. 2 ms after each switch-on and after application of UB |
capacitive loads | up to 40,000μF |
free-wheeling circuit | external free-wheeling diode recommended for inductive loads |
parallel connection of several load outputs | not permissible |
error message, signal output | |
error message F | potential-free signal contact, switches simultaneously with galvanic isolation max. DC 30 V/ 2 A, min. 12 V/10 mA |
signal output ESS30-S001 Signal contact changeover contact |
blue push-button is in the on position: Signal contact 13/14-12 closed Blue push-button is in the off position: Signal contact 13/14-12 open |
signal output ESS30-S002 Signal contact change-over contact |
blue push-button is in the on position: Signal contact 13/14-12 open Blue push-button is in the off position: Signal contact 13/14-12 closed |
Signal output ESS30-S003 Signal contact change-over contact |
blue push-button is in the on position: Signal contact 13-14 is closed, 13-12 is open Blue push-button is in the off position: Signal contact 13-14 is open, 13-12 is closed |
visual indication | lED green UB is on and switch S1 is in ON position and no overload, no short circuit lED off
lED orange Overload condition > 1.2 x IN up to |
general data | |
fail-safe element |
backup fuse for ESS30-S.. not necessary, as a redundant |
flat terminals | 6.3 mm according to EN 60934-6.3-0.8 |
enclosure material | plastic |
enclosure fixing | can be plugged into E-T-A modular power distributors Module 17plus or 18plus |
ambient temperature | 0...+60 °C (without condensation, cf. EN 60204-1) |
storage temperature | -40...+70 °C |
humidity heat | 96 hrs./95 % relat. Humidity/40 °C according to IEC 60068-2-78, Test Cab. Climate class 3K3 according to EN 60721 |
vibration resistance | 3 g, test acc. to IEC 60068-2-6, test Fc |
protection class |
operating range IP30 EN 60529 |
eMC requirements (EMC directive, CE mark) |
interference emission: EN 61000-6-3 Interference immunity: EN 61000-6-2 |
insulation coordination (IEC 60934) |
0.5 kV/pollution degree 2 Reinforced insulation in the operating area |
insulation voltage | dC 500 V Between galvanically isolated areas: load circuit in off-state, signal input and signal outputs |
dielectric strength |
(see also dimensional drawing) Test voltage AC 1 000 V Test voltage AC 500 V Test voltage AC 500 V |
approvals |
cE mark |
insulation resistance (off-state) |
> 100 MΩ (DC 500 V) between LINE (+) - LOAD (+) |
installation dimensions (W x H x D) | see dimensional drawing 12.5 x 105 x 60 mm |
actuating forces |
5...8 N |
weight | approx. 39 g |
Approvals:
test centre | Test standard | rated voltage | rated current range |
File- |
uL | uL 2367 | dC 32 V | 0,5...10 A | e306740 |
uL |
uL 1310 |
dC 28 V |
0.5 A, 1 A, 2 A, |
e306740 |
uL | uL 2367 | dC 24 V | 0.5 A...10 A | e306740 |
uL |
uL 1077 |
dC 24 V |
0.5 A...10 A, |
e67320 |
vDE |
iEC/EN |
dC 24 V | 5 A...10 A | 40039681 |
Table 1: Voltage drop, current limitation, max. load current
Rated current |
typ. Voltage drop |
active current |
Switch-off |
Shut-off Time |
Fail-safe |
max. load current |
||
tU = 40 °C |
tU = 50 °C |
tU = 60 °C |
||||||
0,5 A |
90 m V |
1.2 x IN |
500 ms |
500 ms |
2 A |
0,5 A |
0,5 A |
0,5 A |
1 A |
100 mV |
1.2 x IN |
500 ms |
500 ms |
2 A |
1 A |
1 A |
1 A |
2 A |
110 m V |
1.2 x IN |
500 ms |
500 ms |
4 A |
2 A |
2 A |
2 A |
2 A CL2 |
130 mV |
1.2 x IN |
500 ms |
500 ms |
4 A |
2 A |
2 A |
2 A |
3 A |
150 m V |
1.2 x IN |
500 ms |
500 ms |
6,3 A |
3 A |
3 A |
3 A |
3 A CL2 |
200 mV |
1.2 x IN |
500 ms |
500 ms |
4 A |
§ A |
3 A |
3 A |
3,6 A |
155 mV |
1.2 x IN |
350 ms |
500 ms |
6,3 A |
3,6 A |
3,6 A |
3,6 A |
3.6 A CL2 |
220 mV |
1.05 x IN |
450 ms |
500 ms |
4 A |
3,6 A |
3,6 A |
3,6 A |
4 A |
160 m V |
1.2 x IN |
280 ms |
500 ms |
6,3 A |
4 A |
4 A |
4 A |
6 A |
170 m V |
1.2 x IN |
150 ms |
500 ms |
10 A |
6 A |
6 A |
6 A |
8 A |
190 mV |
1.2 x IN |
280 ms |
500 ms |
15 A |
8 A |
7,5 A |
7 A |
10 A |
210 mV |
1.2 x IN |
200 ms |
500 ms |
15 A |
9,5 A |
9 A |
8,5 A |
1 A/2 A |
140 mV/90 mV |
1.2 x IN |
500 ms |
500 ms |
4 A |
1 A/2 A |
1 A/2 A |
1 A/2 A |
3 A/6 A |
80 mV/160 mV |
1.2 x IN |
500 ms/150 ms |
500 ms |
10 A |
3 A/6 A |
3 A/6 A |
3 A/6 A |
Item name | ESS30-S003-DC24V-1A ETA Electronic circuit breaker |
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SKU | 24-01476 |
Weight | 0.041300 |
Version | 0 mit galvanischer Trennung im Fehlerfall |
Design: Communication, interface | 0 ohne Steuereingang |
Country of manufacture | Germany |
Signal output | 3 Double signal contact changeover contact |
Connection type Main connections | P10 flat plug DIN 46244-A6.3-0.8 |
Series | ESS30 |
Actuating element | W Standard rocker switch |
Undervoltage module | none |
Number of poles | 1-pole thermally protected |
Rated current range | 1A |
Mounting type | S Pluggable |
Characteristic | Medium time-lag tripping characteristic (standard) |
Traub order number | ESS30-S003-DC24V-1A |
Commodity code | 85362010 |
Manufacturer | E-T-A |
Manufacturer number | 0ESS30001125 |