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E-1048-8S2-C3A1-4U3-20A Scheda tecnica(PDF) 1 Page - ETAL Group

Il numero della parte E-1048-8S2-C3A1-4U3-20A
Spiegazioni elettronici  The E-1048-8Slimline features integral power electronics and provides wear-free switching function, insensitive against shock, vibration and dust
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Produttore elettronici  ETAL [ETAL Group]
Homepage  http://www.etalgroup.com
Logo ETAL - ETAL Group

E-1048-8S2-C3A1-4U3-20A Scheda tecnica(HTML) 1 Page - ETAL Group

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Smart Power Relay E-1048-8S...
1646
1
5
Description
Features
Technical Data (Tamb. = 25 °C, UN = DC 24 V)
E-1048-8S SLIMLINE-version
Power supply LINE +
Type
DC power supply with small Ri
battery and generator etc.
Voltage ratings UN
DC 12 V/DC 24 V
Operating voltage US
DC 9...32 V
Closed-circuit current
I0 in the OFF condition 1)
< 50 µA
Load circuit LOAD
Load output
Power MOSFET, high side switching
Current rating range IN
1 A...25 A (fixed ratings), without load
reduction up to 85° C (25 A ... 70 °C)
IN = 1 A...10 A: see trip curve 1
IN = 15 A...25 A: see trip curve 2
Types of loads
resistive, inductive, capacitive, lamp
loads, motors (depending on duration
of inrush current)
Typical voltage drop UON at rated current IN (at 25 °C) 1)
Switching point 1)
typically 1.3 x IN
(-40 °C...+85 °C: 1.1...1.5 x IN)
Trip time 1)
typically 200 ms with switch-on onto
overload and/or load increase on duty;
can be modified in relation to specific
projects.
Max. overload
IN = 1 A...10 A: 60 A (at L/R = 3 ms)
IN = 15 A...25 A: 200 A (at L/R = 3 ms)
short-circuit-proof switching output
with overload disconnection after typically
200 ms at Iload > typically 1.3 x rated current
Temperature disconnection
power transistor > 150 °C
Parallel connection
for loads of 25 A plus, several units of
of channels
identical current ratings may be
connected in parallel. To ensure equal
distribution of current between units,
symmetrical design of the supply feed
is necessary (length and cross section).
Free-wheeling diode
integral
for connected load
IN = 1 A...10 A: max. 40 A
IN = 15 A...25 A: max. 100 A
The Smart Power Relay E-1048-8S is a remotely controllable electronic
load disconnecting relay with two functions in a single unit:
l
electronic relay
l
electronic overcurrent protection
A choice of current ratings is available from 1 A through 30 A. An
operating voltage range of DC 9...32 V allows the connection of
DC 12 V and DC 24 V loads.
It has been designed for installation in IP-protected enclosures. The
optimised design allows reduction of space requirements up to 50 %
compared to standard electro-mechanical cubic relays. Power
consumption is cut by factor 5 compared to standard electro-mechanical
relays and allows gas saving and reduction of CO2 emissions.
In order to switch and protect loads remotely, it has until now been
necessary to connect several discreet components together:
- an electro-mechanic relay, control cable and integral
contact to close the load circuit
- an additional protective element (circuit breaker or fuse) for
cable or equipment protection
Now type E-1048-8S combines these two functions in a single
unit, thus minimising the number of connections in the circuit and
thereby reducing the risk of failures.
Applications
Type E-1048-8S is suited to all applications with DC 12 V or DC 24 V
circuits, where magnetic valves, motors or lamp loads have to be
switched and protected:
- agricultural and construction machinery,
- road vehicles (utility vehicles, buses, special vehicles)
- rail vehicles
- marine industry (ships, boats, yachts etc.)
The Power Relay is also suitable for industrial use (process control,
machine-building, engineering) as an electronic coupling relay between
PLC and DC 12 V or DC 24 V load.
l
The E-1048-8Slimline features integral power electronics and
provides wear-free switching function, insensitive against shock,
vibration and dust.
l
Compared to electro-mechanical relays, only a fraction of the
closed-circuit current or switching current is needed. This is
important for battery buffered load circuits which have to remain
controlled even with the generator off line.
l
The extremely low induced current consumption of less than 50 µA is
absolutely necessary for battery buffered applications.
l
The load circuit is disconnected in the event of a short circuit.
l
For switching and monitoring loads of 25 A plus it is possible to
connect several units in parallel. Uniform power distribution between
units must be ensured by symmetrical design of the supply cables
(length and cross section).
l
Load conditions are visually indicated by a bicolour LED (load
activated: yellow LED lighted; load disconnected due to overload
or short circuit: red LED lighted).
l
An optional status output for group fault signalling »SF« provides
status indication of the load circuit (overload/short circuit)
IN
UON
IN
UON
1 A
50 mV
10 A
110 mV
2 A
55 mV
15 A
70 mV
3 A
60 mV
20 A
90 mV
5 A
80 mV
25 A
120 mV
7.5 A
90 mV
with status
output
1) typical


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