Specifications are subject to change without notice
1
Type EUI
Current and Voltage Controls
1-Phase AC/DC Over Voltage Control
AC/DC over voltage metering (open
circuit) relay
3-position rotary switch for selection of measuring range
Measuring range: 20 V: 40-200 mV, 100-500 mV, 0.4-2 V
or 0.4-2 V, 1-5 V, 4-20 V
500 V: 1-5 V, 4-20 V, 10-50 V
or 10-50 V, 40-200 V, 100-500 V
Adjustable voltage limit on relative scale
Adjustable time function (0.1-10 s)
Adjustable hysteresis
Programmable latching at set level
Output: 5 A SPDT
For mounting on DIN-rail in accordance with
DIN/EN 50 022
22.5 mm Euronorm housing
LED-indication for relay and power supply ON
Galvanically separated power supply
Product Description
Ordering Key
Housing
Function
Type
Output
Power supply
Measuring range
Mounting
Output
Measuring range
Supply: 24 VAC
Supply: 115 VAC
Supply: 230 VAC
For DIN-rail
SPDT
40 mV - 20 V
EUI C 024 20V
EUI C 115 20V
EUI C 230 20V
SPDT
1 - 500 V
EUI C 024 500V
EUI C 115 500V
EUI C 230 500V
EUI is a precise AC/DC over
voltage metering relay. The
advantage of using the latch
function is that the output
relay can be kept energized
so e.g. a short voltage varia-
tion can be detected.
Type Selection
Input Specifications
Input
Through terminals Y1 & Y2
Range x 1
Through terminals Y1 & Y3
Range x 10
Measuring ranges
Internal resist. Max. volt.
20 V type
x 1 input:
Rotary
1: 40 - 200 mV
4.7 k
5 V
Switch
2: 100 - 500 mV
4.7 k
5 V
Position
3: 0.4 - 2 V
4.7 k
5 V
x 10 input:
Rotary
1: 0.4 - 2 V
47 k
50 V
Switch
2: 1 - 5 V
47 k
50 V
Position
3: 4 - 20 V
47 k
50 V
500 V type
x 1 input:
Rotary
1: 1 - 5 V
110 k
100 V
Switch
2: 4 - 20 V
110 k
100 V
Position
3: 10 - 50 V
110 k
100 V
x 10 input:
Rotary
1: 10 - 50 V
1.1 M
500 V
Switch
2: 40 - 200 V
1.1 M
500 V
Position
3: 100 - 500 V
1.1 M
500 V
Max. line voltage
277/480 VAC/DC
Latching
Interconnection of
terminals Z1 & Z2
Latching at set level
Output Specifications
Output
SPDT relay
Rated insulation voltage
250 VAC (contact/elect.)
Contact ratings (AgCdO)
(micro gap)
Resistive loads
AC 1
5 A, 250 VAC
DC 1
5 A, 24 VDC
Small inductive loads AC 15
2 A, 250 VAC
DC 13
3 A, 24 VDC
Mechanical life
40 x 10
6
operations
Electrical life
10
5
operations
(at max. load)
Operating frequency
7200 operations/h
Dielectric strength
Dielectric voltage
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 s)
EUI C 230 20V
2
Specifications are subject to change without notice
General Specifications
EUI
Power ON delay
< 2 s
Power OFF delay
> 500 ms
Reaction time
< 200 ms
worst case reaction time
may be up to 5 x
Adjustable delay on release
built-in (0.1-10 s)
Accuracy
Input
10%
ON delay
10 s, -1/+3 s
< 0.1 s on min.
Temperature drift
0.2%/ C (
0.11%/F)
Indication for
Power supply ON
LED, green
Output ON
LED, yellow
Environment
Degree of protection
IP 20
Pollution degree
3
Operating temperature
-20 to +50C (-4 to +122F)
Storage temperature
-50 to +85C (-58 to +185F)
Weight
140 g
Screw terminals
Tightening torque
Max. 0.5 Nm acc. to IEC 60947
Approvals
UL, CSA
Supply Specifications
Power supply
Overvoltage cat. III (IEC 60664)
Rated operational voltage
(IEC 60038)
Through pins A1 & A2 024
24 VAC 15%, 45 to 65 Hz
115
115 VAC 15%, 45 to 65 Hz
230
230 VAC 15%, 45 to 65 Hz
Voltage interruption
40 ms
Dielectric voltage
2 kVAC (rms)
Rated impulse withstand
voltage
4 kV (1.2/50 s)
Rated operational power
1.5 VA
Mode of Operation
EUI measures both AC and
DC voltages.
Example 1
(no connection between ter-
minals Z1 & Z2)
The relay operates when the
measured value exceeds the
set level for more than the set
delay-time.
The relay releases when the
voltage drops min. 5% below
the set level (see hysteresis)
or when power supply is inter-
rupted.
Example 2
(connection between termi-
nals Z1 & Z2)
The relay operates and latches
in operating position when the
measured value exceeds the
set level for more than the set
delay-time.
Provided that the voltage has
dropped min. 5% below the
set point (see hysteresis), the
relay will release when the in-
terconnection between termi-
nals Z1 & Z2 is interrupted, or
power supply is interrupted.
If the measured value is above
the set level when power sup-
ply is applied, the relay will
operate immediately with no
time delay.
The yellow LED is flashing until
the delay-time has expired, or
until the measured value
drops below the fixed hyste-
resis (5%) again.
Range/Level/Time Setting
Upper knob:
Setting of voltage range on
rotary switch.
When using Y1 & Y3 the scale
is multiplied by 10.
Centre knob:
Level setting on relative scale.
Lower knob:
Setting of ON delay on abso-
lute scale (0.1-10 s).
Hysteresis
Normally 5%. The hysteresis
can be extended by inserting
a resistor between terminals
Z1 & Z2.
Approx.
10%: 39 k
25%: 12 k
50%: 4.7 k
75%: 2.2 k
Latch: < 500
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