ESS20-0 Datasheet, PDF (2/6 Pages) ETAL Group – Selective load protection with physical isolation in the event of a fault

Electronic Circuit Breaker ESS20-0...
Technical data (Tambient = 25 °C, operating voltage US = DC 24 V)
Ordering information
Fault indication, signal output
Type No.
Fault indications
potential-free auxiliary contact change-over
ESS20 Electronic Circuit Breaker with current limitation (e.g. typically

(SC-SO / SC-SI) simultaneously with
1.8 times rated current or 1.5 x I_N, see table 1)

physical isolation ^Version

max. DC 30 V / 0.5 A, min. 10 V / 10 mA
0 with physical isolation in the event of a failure
Signal output ESS20-001 blue push button in ON position:
(single signalisation N/O) signal contact SC-SI is closed

blue push button in OFF position:
Control input
0 without control input
Signal output

signal contact SC-SI is open
1 signal contact N/O (single signalisation)
Signal output ESS20-003 blue push button in ON position:
(group signalisation N/C) signal contact SC-SO is closed

(SC-SI is copen)

blue push button in OFF position:
2 signal contact N/C (single signalisation)
3 signal contact changeover (group signalisation)
Operating voltage
DC 24 V rated voltage DC 24 V

signal contact SC-SO is open
Current rating

(SC-SI is closed)
0.5 A
Visual indication

LED lighted in ORANGE
(until physical isolation)
1 A
2 A
3 A
General data
4 A
Backup fuse for ESS20-0.. not required because of the integral
6 A

redundant fail-safe element (thermal
8 A

E–T–A circuit breaker)
10 A


push button in OFF position when
fail-safe element has tripped.
1 A/2 A (selectable)
3 A/6 A (selectable)
Blade terminals
6.3 mm to EN 60934-6.3-0.8

Housing material
Mounting of housing
plastics material
plug-in mounting utilising power
ESS20 - 0 0 3 - DC 24 V - 3 A/6 A ordering example
(recommended type)

distribution system Module 17plus or SVSxx
Ambient temperature

0...+50 °C (without condensation, see
EN 60204-1)
Preferred types
Storage temperature
-20...+70 °C
Humidity


96 hrs/95 % RH/40 °C to
IEC 60068-2-78, test Cab.
climate class 3K3 to EN 60721
Vibration
3 g, test to IEC 60068-2-6 test Fc
4
Degree of protection

housing: IP30 DIN 40050
terminals: IP00 DIN 40050
EMC
emission: EN 61000-6-3
(EMC directive, CE logo) susceptibility: EN 61000-6-2
Preferred types
ESS20-003-DC24V
ESS20-001-DC24V
Dimensions
Standard current ratings (A)
0.5 1 2 3 4 6 8 10 1/2 3/6
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Insulation co-ordination 0.5 kV/2 pollution degree 2
60
(IEC 60934)
re-inforced insulation in operating area
Dielectric strength
(see dimensions)
operating area
test voltage AC 1000 V
installation area
test voltage AC 500 V
load circuit-signal contact test voltage AC 500 V
operating area
Insulation resistance
(OFF condition)
> 100 MΩ (DC 500 V)
[LINE (+) –­ LOAD (+)]
Approvals  CE logo
UL 1077, File E67320
Supplementary Protectors for use in Electrical Equipment
IEC/EN 60934 (fixed current ratings)
mounting area
Dimensions (W x H x D) 12.5 x 105 x 60 mm
Mass
approx. 65 g
Table 1: voltage drop, current limitation, max. load current
current
rating I_N
0.5 A
1A
2A
3A
4A
6A
8A
10 A
1 A/2 A
3 A/6 A
typically voltage
drop U_ON at I_N
active current
limitation (typically)
100 m V
140 mV
180 mv
140 mV
190 mV
280 mV
220 mV
280 mV
140 mV/280 mV
140 mV/280 mV
1.8 x IN
1.8 x IN
1.8 x IN
1.8 x IN
1.8 x IN
1.8 x IN
1.5 x IN
1.5 x IN
1.8 x IN
1.8 x IN
max. load current at
100 % ON duty
T_U = 40 °C T_U = 50 °C
0.5 A
0.5 A
1A
1A
2A
2A
3A
3A
4A
4A
6A
5A
8A
7A
10 A
9A
1 A/2 A
1 A/2 A
3 A/6 A
3 A/5 A
Attention: when mounted side-by-side without convection the ESS20-0.. should not carry
more than 80 % of its rated load with 100 % ON duty because of the integral thermal
circuit breaker.
6,8
6 x 6,8 = 40,8
Label
reverse plug-in
protection
blade terminals
EN 60934-6.3-0.8
adjustable
LED
This is a metric design and millimeter dimensions take precedence ( ^mm )

inch
2
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