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Voltage control relay
EUL / EUH
■ Space savings, accurate measurement and optimized functions
all improve the efficiency of your electrical installation
■ With these relays you can be sure your equipment is working in
the correct conditions, by checking the supply voltage.
■ Control : Select “Over-voltage” or “Under-voltage” control mode,
by means of a dip switch.
■ Safety : Choose whether or not to activate the fault memorisation
function and the delay on threshold crossing in the same way.
■ Accuracy : 2 products, EUL or EUH for greater accuracy of
measurement, provided by a microcontroller.
Type
Operating principle
Measurement range
Control of AC / DC voltage without memory
Part numbers (and voltages)
When the value of the controlled voltage, AC or DC, reaches the
threshold Ue displayed on the front face, the output relay changes state
at the end of a time delay T which can be set on the front face at between
0.1 and 3 s.
Once the voltage drops below 5 to 50% of the threshold (hysteresis), the
output relay changes state again instantly. Changing the hysteresis on
the front face does not therefore modify the value of the preset threshold.
24 V c
24 V a
120 V a
230 V a
Unit power-up
Controlled voltage
T1
Operating range
Maximum power consumption
Frequency of measured signal
Threshold Ue
UPPER function
Controlled voltage
3
Hysteresis
Threshold Ue
Hysteresis
Display accuracy
Delay on upward crossing of threshold
T1
UNDER function
Output relay
Control of AC / DC voltage with memory
When the value of the controlled voltage, AC or DC, reaches the
threshold Ue displayed on the front face, the output relay changes state
at the end of a time delay T which can be set on the front face at between
0.1 and 3 s, and remains latched in this position.
84 872 001
84 872 002
84 872 004
84 872 005
84 872 006
84 872 007
84 872 009
84 872 010
Technical specification
Un
Threshold Ue
Hysteresis
EUH
15 to 600 V
1
Types
Supply voltage
Un
VOLTAGE CONTROL WITHOUT MEMORY
EUL
0.2 to 60 V
EUL
EUH
24 V, 120 V, 230 V 50 / 60 Hz
(galvanic isolation via
transformer).
24 V c (No galvanic
isolation) (1)
0.85 to 1.15 Un
3 VA
40 to 500 Hz
Adjustment from 1 to 100% of
the measurement range
Adjustment from 5 to 50% of
the displayed threshold
±10% of the full scale
0.1 to 3 s
1 AgCdO changeover,
8 Aa max
-20 °C to +60 °C
-30 °C to +70 °C
E1-M E2-M E3-M E1-M E2-M
0.2 to 1 to 6 to 15 to 30 to
2 V 10 V 60 V 150 V 300V
2 kΩ 10 kΩ 60kΩ 100 kΩ 300 kΩ
Operating temperature
Storage temperature
Measurement Input
range
Sensitivity
Input
resistance
(1) The “negative” poles of the auxiliary power supply and the
measurement circuit are connected inside the unit.
VOLTAGE CONTROL WITH MEMORY
Un
Unit power-up
Threshold Ue
Hysteresis
T1
memory
Controlled
voltage
UPPER function
Controlled
voltage
Hysteresis
Threshold Ue
T1
memory
UNDER function
Other information
To order, specify :
For connections, see page 3/46
For conformity, common characteristics, see page 3/50
For dimensions, see page 3/52
Standard
products
1
Standard products,
non stocked
3/22
Part number
Example : Voltage control relay EUL 84 872 002
E3-M
60 to
600 V
600 kΩ
Wiring diagrams and applications
DIRT2 / LIRT2 - DIRTD2 / LIRTD2
DIART2 / LIART2 - DIARTD2 / LIARTD2
N
R S
T
~
S1
AR
A1 11 E1
D1
d1
MA
R
T1 XP3
12 14
Y1 M A2
(+)
A1 11
Memory
S2
E1 E2 E3
R
~
12 14 Y2 Y1 M A2
U V W
(-)
DC
(-) OV
Memory
S2
M
3~
To control DC currents, short-circuit terminals Y2 and M
(11 and 8).
3
DIRT(D)2
A1 A2 11 12 14 E1 E2 E3 M Y1 Y2
LIRT(D)2
2
10
1
4
3
5
6
7
8
EUL / EUH
9
A1
LIART(D)2
1
4
3
E2
(+)
E3
(+)
12
11
R
R
14
U
A2
(-)
A1 - A2 : Power supply
12
14
A2
(-)
A1 - A2 : Power supply
12
A1 - A2 : Power supply
DSR2/LSR2 - DSRD2 / LSRD2
12 V c version
9
A1
11
A1
U
M
(-)
A2
8
(+)
(+)
11
5
U
U
E1
(+)
R
DSFRT2 / LSFRT2
20 - 80 V a c
and 90 - 270 V a c version
+
+
~
+
~
A1 11
A1 11
Supply
voltage to be
monitored
10
EUSF
U
(-)
2
EUS
U
(+)
DIART(D)2 A1 A2 11 12 14 E1 M Y1
11
Supply
voltage to be
monitored
R
12 14
Y1
A1 11
R
Supply
voltage to be
monitored
12 14 Y2 Y1 M A2
A2
R
M A2
12 14 Y2
Memory
S2
-
~
To control DC currents, short-circuit terminals Y2 and M
(11 and 8).
DSR(D)2
LSR(D)2
~
Memory
S2
To control DC currents, short-circuit terminals Y2 and M
(11 and 8).
A1 A2 11 12 14 M Y1 Y2
2
10
1
4
3
8
9
DSFRT2
11
LSFRT2
3/46
A1 A2 11 12 14 M Y2
2
10
1
4
3
8
11
14
Approvals and conformity
Approvals :
UL
CSA
Conforming to :
VDE 0435
VDE 0609
VDE 0110
VBG 4
IEC 158-1
IEC 255-0-20
IEC 255-3 & 6
IEC 255-8 & 17
IEC 255-22-1
IEC 255-22-2
IEC 255-5
IEC 801-4
IEC 67.1.5 1 & 18
DIN 46277
IEC 529
DIN 40050
NFC 20010
Generic standard for electrical relays
Screw terminal connection
Creepage distance
Protection against accidental contact with terminals
Standard covering low voltage control equipment
(contactors) - AC1
Generic standard for electrical relays
Generic standard for measurement and protection relays
Generic standard for measurement and protection
relays & thermal protection of motors
Protection against HF interference - 1 Mhz
Protection against electrostatic discharges 8 Kv
Protection against 1.2/50 µs impulse voltages and
insulation resistance
Protection against pulse-string interference
Pluggable into 11-pin base
Fitting to DIN rail
Class of protection IP 40 unit and IP 20
terminals
Class of protection IP 40 unit and IP 20
terminals
Class of protection IP 40 unit and IP 20
terminals
Common technical characteristics
3
Self-extinguishing housing
Output circuit.................................
1 AgCdO changeover
Rated power .................................
2000 VA a
190 W c
Max. breaking current ...................
8 A~
10 A c
Minimum breaking current ...........
100 mA a
100 mA c
Max. breaking voltage...................
380 V a
Nominal breaking voltage .............
250 V a
Electrical life..................................
105 operations at 2000 VA resistive
Mechanical life ..............................
5 • 106 operations
Contact/coil isolation ....................
4 kV
3/50
Dimensions
MCI
EI - EUL / EUH - EUS / EUSF
4,2
43,7
5
72
4,5
99,3
89,7
78,5
57
3,5
22,5
5
100
82,2
F3I
F3IT
4,2
11
45
5
80
35,4
77
44
23
79
2
35,4
38
ETM / ETM2
38
16,8
86
81
Ø 5,5
82
45
18
17,5
90
14 12
94
5
100
17,5 17,5
78
12 12
45
11
12 A2
8
14
99,3
89,7
78,5
57
Y1 Y2
50
39
8
12
22,5
TIDR - TDA-TDC
48
24
74,5
27
Accessory
Ø 13
39
3
38
5
99
95
20
Transformer
part number 26 852 304
3/52
12