Specifications are subject to change without notice
1
Current and Voltage Controls
Type EIL
1-Phase AC Over Current (with CT)
AC over current (open circuit) metering
relay for standard and CG current transformers
3-position rotary switch for selection of measuring range
Applicable current transformers:
CG CT: MI 5/MI 500 or
Standard CT: ...A/1 AMP, .../5 AMP
Adjustable 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
EIL C 230
EIL operates together with an
externally connected single or
3-phase AC current trans-
former. Often used to prevent
e.g. heating elements or mo-
tors from exceeding a certain
set limit by keeping the output
relay energized by means of
the built-in programmable
latch function.
Mounting
Output
Current Transformer
Supply: 24 VAC
Supply: 115 VAC
Supply: 230 VAC
For DIN-rail
SPDT
MI... or
Standard CT.
EIL C 024
EIL C 115
EIL C 230
Type Selection
Input Specifications
Input
Through terminals Y1 & Y2
MI... transformer
Through terminals Y1 & Y3
standard CT transformer
Measuring ranges
Internal resist. Max. input
Rotary
1: MI...
10 k
6 V
p
Switch
2: 0.1 - 1A AC
0.05
6 A
Position
3: 0.5 - 5A AC
0.05
6 A
peak 30 A for 10 s
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)
2
Specifications are subject to change without notice
EIL
General Specifications
Power ON delay
< 2 s
Power OFF delay
> 200 ms
Reaction time
< 200 ms
worst case reaction time
may be up to 5 x
.
Adjustable delay on operate
built-in (0.1-10 s).
Accuracy
Input
10% (AC @ 50 Hz)
ON delay
10 s, -1/+3 s on max.
< 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
EIL measures AC current
through an external Carlo
Gavazzi MI... current trans-
former or a standard 1 A/5 A
current transformer. The scale
is calibrated to rms value.
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
measured value drops min.
5% below the set level (see
hysteresis) or when power
supply is interrupted.
Mode of Operation
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 measured
value has dropped min. 5%
below the set point (see hys-
teresis), the relay will release
when the interconnection be-
tween terminals 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 time delay has expired, or
until the measured value drops
below the fixed hysteresis
(5%) again.
Upper knob:
Setting of current range on
rotary switch.
Range/Level/Time Setting
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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