Phase control
➜
Single function phase control relay - 17.5 mm
■
Control of 3-phase networks : phase sequence, total
■
■
■
■
phase failure
Multi-voltage from 3 x 208 to 3 x 480 V
a
Controls its own supply voltage
True RMS measurement
LED status indication
Part numbers
MWS
Function
Nominal voltage (V)
Output
Part numbers
Supply
Supply voltage Un
Operating range
Inputs and measuring circuit
Measurement ranges
General characteristics
Weight
Comments
* 3-phase mains with earth
Phase sequence and failure
3 x 208
➞
3 x 480 V
a
1 single pole changeover relay
84 873 029
3 x 208
➞
3 x 480 V
a
*
183
➞
528 V
a
183
➞
528 V
a
80 g
General characteristics
Supply
Voltage supply tolerance
a
supply voltage frequency
Galvanic isolation of power supply/measurement
Power consumption at Un
Immunity from micro power cuts
Inputs and measuring circuit
Guaranteed phase failure detection threshold
Frequency of measured signal
Timing
Delay on pick-up
Alarm on delay time max.
Output
Type of contacts
Maximum breaking voltage
Max. breaking current
Min. breaking current
Electrical life (number of operations)
Breaking capacity (resistive)
Mechanical life (operations)
Insulation
Nominal insulation voltage IEC/EN 60664-1
Insulation coordination (IEC/EN 60664-1)
Rated impulse withstand voltage (IEC/EN 60664-1)
Dielectric strength (IEC/EN 60664-1)
Insulation resistance (IEC/EN 60664-1)
General characteristics
Output relay status indication
Casing
Mounting
Mounting position
Material : enclosure plastic type VO to UL94 standard
Protection (IEC/EN 60529)
-12 % / +10 %
50 / 60 Hz ± 10 %
No
22 VA in 400 V
a
, 50 Hz
60 ms
< 100 V
a
50
➞
60 Hz ± 10 %
≤
650 ms
130 ms
No cadmium
250 V
a
/
c
8A
z
10 mA / 5 V
c
1 x 10
5
MWS
2000 VA
a
/ 80 W
10 x 10
6
400 V
Overvoltage category III : degree of pollution 3
4 kV (1.2 / 50 µs)
2 kV AC 50 Hz 1 min.
> 500 MΩ / 500 V
c
Yellow LED
17.5 mm
On 35 mm symmetrical DIN rail, IEC/EN 60715
All positions
Incandescent wire test according to IEC/EN 60695-2-11
Terminal block : IP20
Casing : IP30
1
Connecting capacity IEC/EN 60947-1
Max. tightening torques IEC/EN 60947-1
Operating temperature IEC/EN 60068-2
Storage temperature IEC/EN 60068-2
Humidity IEC/EN 60068-2-30
Vibrations according to IEC/EN60068-2-6
Shocks IEC/EN 60068-2-6
Standards
Standards
Certifications
Conformity with environmental directives
Rigid : 1 x 4
2
- 2 x 2.5
2
mm
2
1 x 11 AWG - 2 x 14 AWG
Flexible with ferrules : 1 x 2.5
2
- 2 x 1.5
2
mm
2
1 x 14 AWG - 2 x 16 AWG
0.6
➞
1 Nm / 5.3
➞
8.8 Lbf.In
-20
➞
+50 °C
-40
➞
+70 °C
2 x 24 hr cycle 95 % RH max. without condensation 55 °C
10
➞
150 Hz, A = 0.035 mm
5g
IECI/EN 50178, IEC/EN 61000-6-2, IEC/EN 61000-6-3
CE, UL, CSA, GL
RoHS, WEEE
Product adaptations
■
Customisable colours and labels
Accessories
Description
Removable sealable cover for 17.5 mm casing
Code
84800000
Dimensions (mm)
MWS
60
44
23,2
17,5
67,5
45
5,5
mm
Connections
MWS
L1
L2
L3
F1
1
L1
24
L2
21
L3
22
L2
L1
L3
11
R
12
12
11
14
14
1
100 mA fast-blow fuse
2,6
90
2
Principles
Overview
3-phase network control relays monitor the sequence of phases L1, L2, L3 and failure of one or more phases.
LEDs are used for signalling.
MWS Phase failure and sequence
L1
L2
L3
100 %
0%
100 %
0%
100 %
0%
Tr
Tr
Tr
Tr
L3
L2
1
2
Operating principle
MWS: Phase controller
The relay monitors its own supply voltage.
The relay controls :
- correct sequencing of the three phases,
- total failure of one of the three phases.
When the phase sequence and voltages are correct (> 183 V
a
), the output relay (s) are closed
and the yellow LED is lit.
In the event of a phase sequence or total phase failure fault (detected when one of the voltages
drops below 100 V), the relay opens instantly and its LED is extinguished.
When the unit is powered up with a measured fault, the relay stays open.
1
MWS : Relay R
2
Response time on appearance of a fault (Tr)
3
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