Specifications are subject to change without notice 1
Current and Voltage Controls
Type EII
• AC/DC over current metering
(open circuit) relay
• Current measuring through internal shunt
• 3 position rotary switch for selection of measuring range
• Measuring ranges: 0.4 mA - 10 A
• Adjustable current 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
Ordering Key
Housing
Function
Type
Output
Power supply
Measuring range
EII is a precise AC/DC over
current metering relay and
often used in applications
where small loads have to be
controlled. The advantage of
Product Description
using the latch function is that
the output relay can be kept
energized so that e.g. a short-
circuit can be indicated.
Type Selection
Input Specifications Output Specifications
Output SPDT relay
Rated insulation voltage 250 VAC (contact/elect.)
Contact ratings (AgCdO) µ (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 106operations
Electrical life ≥105operations
(at max. load)
Operating frequency ≤7200 operations/h
Dielectric strength
Dielectric voltage 2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
1-Phase AC/DC Over Current
EII C 230 20mA
Mounting Output Measuring range Supply: 24 VAC Supply: 115 VAC Supply: 230 VAC
For DIN-rail SPDT 0.4 - 20 mA EII C 024 20mA EII C 115 20mA EII C 230 20mA
SPDT 10 - 500 mA EII C 024 500mA EII C 115 500mA EII C 230 500mA
SPDT 0.2 - 5 A EII C 024 5A EII C 115 5A EII C 230 5A
SPDT 0.4 - 10 A EII C 024 10A EII C 115 10A EII C 230 10A
Input
Through terminals Y1 & Y2 current level
Measuring ranges Internal resist. Max. curr.
20 mA type
Rotary 1: 0.4 - 2 mA 50 Ω50 mA
Switch 2: 1 - 5 mA 50 Ω50 mA
Position 3: 4 - 20 mA 50 Ω50 mA
500 mA type
Rotary 1: 10 - 50 mA 3.9 Ω600 mA
Switch 2: 40 - 200 mA 3.9 Ω600 mA
Position 3: 100 - 500 mA 3.9 Ω600 mA
5 A type
Rotary 1: 0.2 - 1 A 0.05 Ω6 A
Switch 2: 0.4 - 2 A 0.05 Ω6 A
Position 3: 1 - 5 A 0.05 Ω6 A
Max. current for 10 s 30 A
10 A type
Rotary 1: 0.4 - 2 A 0.01 Ω12 A
Switch 2: 1 - 5 A 0.01 Ω12 A
Position 3: 2 - 10 A 0.01 Ω12 A
Max. current for 10 s 40 A
Max. line voltage 277/480 VAC/DC
2Specifications are subject to change without notice
EII
General Specifications
Power ON delay < 2 s
Power OFF delay > 200 ms
Reaction time τ< 200 ms
worst case reaction time
may be up to 5 x τ
Adjustable delay on operate
built-in (0.1-10 s).
Accuracy
Input ±10% (DC/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 +50°C (-4 to +122°F)
Storage temperature
-50 to +85°C (-58 to +185°F)
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,
-10/+15%
115
115 VAC, -10/+15%
230
230 VAC, -10/+15%
Voltage interruption ≤40 ms
Dielectric voltage ≥2 kVAC (RMS)
Rated impulse withstand
voltage 4 kV (1.2/50 µs)
Rated operational power 1.5 VA
Mode of Operation
EII measures both AC and DC
over current through an inter-
nal shunt.
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
current 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
the measured value drops
below the fixed hysteresis
(5%) again.
Range/Level/Time Setting
Upper knob:
Setting of current range on
rotary switch.
Centre knob:
Current level setting on rela-
tive 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 kΩ
25%: 12 kΩ
50%: 4.7 kΩ
75%: 2.2 kΩ
Latch: <500 Ω
Specifications are subject to change without notice 3
EII
Wiring Diagrams
Example 1 Example 2
µµ
N
L
L
N
++
PE PE
Hysteresis
adjustment
Latch/Hysteresis
adjustment
Power supply
Set level
Relay ON
Hysteresis
Power supply
Latch ON
Set level
Relay ON
Hysteresis
Operation Diagrams
TT
TT
