Smart Power Relay E-1048-8D...
Description
The Smart Power Relay E-1048-8D is a remotely controllable electronic
load disconnecting relay with two functions in a single unit:
l
electronic relay
l
electronic overcurrent protection
The 4 pin DICE version is designed for use with standard automotive relay
sockets. 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.
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-1048-8D combines these two functions in a single
unit, thus minimising the number of connections in the circuit
and thereby reducing the risk of failures.
E-1048-8D DICE version
Technical Data (T
A
= 25 °C at U
N
)
Power supply LINE +
Type
Voltage ratings U
N
Operating voltage U
S
Closed-circuit current
I
0
in the OFF condition
1)
Load circuit LOAD
Power MOSFET, High Side Switch
(HSS)
Current rating range I
N
1 A ... 30 A (fixed ratings) without load
reduction up to 85° C (1 A ... 25 A),
30 A up to 60 °C ambient temp.
Types of loads
resistive, inductive, capacitive, lamp
loads, motors (depending on duration
of inrush current)
ENTRY version
Load output with short circuit protection
ENTRYprotect version
Load output with short circuit and
overload protection (typically 200 ms
at I
Load
typically 1.3 x I
N
)
I
N
= 1 A...10 A: see trip curve 1
I
N
= 15 A...30 A: see trip curve 2
Typical voltage drop U
ON
at rated current I
N 1)
I
N
1A
2A
3A
5A
7.5 A
U
ON
50 mV
55 mV
60 mV
80 mV
90 mV
I
N
10 A
15 A
20 A
25 A
30 A
typically 1.3 x I
N
curve)
1)
(-40 °C...+85 °C: 1.1...1.5 x I
N
)
typically 200 ms with switch-on onto
overload and/or load increase on duty
U
ON
110 mV
70 mV
90 mV
120 mV
140 mV
Load output
DC power supply with small R
i
battery and generator etc.
DC 12 V/DC 24 V
DC 9...32 V
50 µA
Applications
Type E-1048-8D 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:
- road vehicles (utility vehicles, buses, special vehicles)
- construction and agricultural machinery
- 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
Features
l
l
l
l
l
l
Integral power electronics provide a wear-resistant switching
function, insensitive to shock, vibration and dust.
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.
The extremely low induced current consumption of less than 50 µA is
absolutely necessary for battery buffered applications.
The load circuit is disconnected in the event of a short circuit
(ENTRY version) or overload/short circuit (ENTRYprotect version).
For switching and monitoring loads of 30 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).
Coloured label, for the identification the rated current (e. g. red = 10 A).
only ENTRYprotect
Switching point
1)
Trip time (standard
7
Approvals
Max. overload
Authority
KBA
Standard
ECE regulation
No 10 (E1)
Rated voltage
DC 9 V…DC 32 V
Current
ratings
1...30 A
I
N
= 1 A...10 A: 60 A (at L/R = 3 ms)
I
N
= 15 A...30 A: 200 A (at L/R = 3 ms)
Parallel connection of channels for loads of 30 A plus, several units of
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).
1)
typically
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Smart Power Relay E-1048-8D...
Technical Data (T
A
= 25 °C at U
N
)
Free-wheeling diode
for connected load
Delay time
1)
Short circuit, overload
in load circuit
integral
I
N
= 1 A...10 A: max. 40 A
I
N
= 15 A...30 A: max. 100 A
t
on
0.5 ms, t
off
1.5 ms
- disconnection of load
- no automatic re-start
- after remedy of the fault unit has to
be reset via control input IN+
Technical Data (T
A
= 25 °C at U
N
)
Housing
dimensions
Materials
Mass
30 x 30 x 30 mm when plugged in
30 x 30 x 41.6 mm including terminals
housing PA66-GF30
base plate PA6-GF30
approx. 20 g (25 A and
30 A approx. 50 g)
Control input IN+
0...5 V = “OFF”, 8.5...32 V = “ON”
typically 1 mA at 12 V /
typically 5 mA at 24 V
Reset in the event of a failure - via external control signal
(low-high) at control input IN+
- via reset of supply voltage
Control input IN-
relay energised when IN- connected to
ground; tolerance range 12 V system:
0...6 V = “ON” 8.5...12 V “OFF”
tolerance range 24 V system:
0...18 V = “ON” 20.5...24 V “OFF”
Reset in the event of a failure - resettable via external control signal
(High-Low) at control input IN-
- via reset of supply voltage
Control input IN+ / IN-
Switching frequency
at resistive or inductive load
Edge of IN
General data
Reverse polarity protection
Control circuit
Load circuit
Temperature range
ambient temperature
Temperature shutdown
Tests
Humid heat
Temperature change
Vibration (random)
yes
no (due to integral free-wheeling diode)
1 ...25 A: -40 ... +85 °C
30 A: -40 ... + 60 °C without derating
power transistor > 150 °C
combined test, 9 cycles with
functional test
test to DIN EN 60068-2-30, Z/AD
min. temperature -40 °C,
max. temperature +90 °C
test to DIN IEC 60068-2-14, Nb
in operation, with temperature change
6 g eff. (10 Hz...2,000 Hz)
test to DIN EN 60068-2-64
Vibration was tested with standard
sockets for PCB mounting.
Behaviour at vibrations depends on
design, quality and age (number of
push-in cycles) of the socket particularly
regarding duration of the vibration and
the mounting position.
25 g/11 ms, 10 shocks
test to DIN EN 60068-2-27
test to DIN EN 60068-2-52, severity 3
housing -8D4 IP30 to DIN 40050
housing -8D5 IP54 to DIN 40050,
higher protection class upon request
EMC directive:
emitted interference EN 50081-1
noise immunity EN 61000-6-2
Automotive directive:
emitted interference, noise immunity:
72/245/EWG and 2006/28/EG
4 blade terminals 6.3 mm x 0.8 mm
contact material CuZn37F44
on automotive relay socket 4-pole
max. 60 Hz
< 5 ms
Control voltage IN-
Control voltage IN+
Control current I
E
Ordering Information
Type
E-1048-8D
Smart Power Relay DC 12 V/24 V, 1 A...30 A
in DICE version
Housing / temperature range
4
with housing -40 °C...85 °C (for rated current up to 20 A)
5
with housing -40 °C ... 85 °C (60 °C at IN = 30 A)
improved ambient req. (IP protection class etc.)
Control input
C 0
with control input (IN+ control 8.5...32 V)
C 1
with control input (IN- control by connecting to ground)
C2
IN+ with increased control current (12.5 mA)
Options
A0
without options
Characteristic curve
0
4
ENTRY, short circuit protected
ENTRYprotect, 200 ms standard
switch-off delay with overload, short circuit
protected
Voltage rating
U3
DC 12/24 V
Current ratings / colour of label
1 A /
black
2 A /
grey
3 A /
purple
5 A /
light-brown
7.5 A /
brown
10 A /
red
15 A /
blue
20 A /
yellow
25 A /
white
30 A /
green
U3 - 10 A
ordering example:
ENTRY version 4 pin
E-1048-8D
4 - C0
A0 - 0
Dimensions DICE version (4 pin version)
2
6
8
4
2, 4, 6 and 8 - blade terminals 6.3 x 0.8
footprint
to ISO 7588
7
30
1.18
Shock
Corrosion
Protection class
EMC requirements
30
1.18
Terminals
Mounting:
1)
typically
This is a metric design and millimeter dimensions take precedence ( mm )
inch
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30
1.18
41,6
1.64
2015/16
Smart Power Relay E-1048-8D...
Typical time/current characteristics (T
A
= 25 °C)
Trip curve 1 “ENTRYprotect”
1 A, 2 A, 3 A, 5 A, 7,5 A and 10 A (standard 200 ms)
1000
Connection diagrams DICE version
C0 Control Input IN+
LINE (+)
DC 12 V/24 V
+
100
control input
1…10 mA
IN+
Trip time in ms
10
1
max. overload
0.1
LOAD (+)
GND
0
1
2
typ. 1.3 x I
N
(typically 60 A)
I (A)
C0 Control Input IN-
LINE (+)
DC 12 V/24 V
... times rated current I
N
Trip curve 2 “ENTRYprotect”
15 A, 20 A, 25 and 30 A (standard 200 ms)
1000
control input
1…10 mA
IN-
100
Trip time in ms
10
LOAD (+)
1
GND
max. overload
0.1
Pin selection DICE version (4 pin)
I (A)
)
0
1
2
typ. 1.3 x I
N
(typically 200 A)
...times rated current I
N
E-1048-8D DICE version
LINE + (30)
1
2
3
4
5
6
8
U
S
(DC 12 V/24 V)
control input
ground U
S
load output
2
7
(30)
(31) (86)
(88a)
8
6
4
Preferred types
Preferred types
E-1048-8D4-C0A0-4U3-
Standard current ratings (A)
1
x
IN
2
x
(86)
3
x
5
x
7.5
x
10
x
15
x
20
x
GND (31)
LOAD (88a)
All dimensions without tolerances are for reference only. In the interest of improved design,
performance and cost effectiveness the right to make changes in these specifications without
notice is reserved. Product markings may not be exactly as the ordering codes. Errors and
omissions excepted.
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