EWS2

KEY FEATURES

  • Control of 3-phase networks : phase sequence, total phase failure
  • Multi-voltage from 3 x 208 to 3 x 480 V ∿
  • Controls its own supply voltage
  • True RMS measurement
  • LED status indication
FunctionNominal voltage (V)OutputCode
Phase sequence & failure3 x 230 →3 x 415 VAC2 changeover relays84873034

Specifications


Supply voltage Un 3 x 230 →3 x 415 VAC *
Operating range 200 →460 VAC
Power consumption at Un 28 VA

Measurement ranges 200 →460 VAC
Guaranteed phase failure detection threshold > 100 VAC
Maximum regeneration (phase failure) < 100 VAC

Alarm on delay time max. 130 ms
Delay on pick-up ≤ 650 ms

Type of output 2 changeover relays
Maximum breaking voltage 250 VAC / 8A AC - 250 VDC / 0,3 A
Max. breaking current 8 A AC 250 VAC - 8 A DC 30 VDC
Min. breaking current 10 mA / 5 VDC
Electrical life (number of operations) 1 x 105
Breaking capacity (V resistive) 2000 VA/80 W
Mechanical life (operations) 10 x 106

Nominal insulation voltage IEC/EN 60664-1 400 V
Insulation resistance (IEC/EN 60664-1) > 500 MΩ / 500 VDC

"Fault" indication Yellow LED
Weight 86 g
Connecting capacity IEC/EN 60947-1 Rigid  : 1 x 42 - 2 x 2,52 mm2 1 x 11 AWG - 2 x 14 AWG Flexible with ferrules  : 1 x 2,52 - 2 x 1,52 mm2 1 x 14 AWG - 2 x 16 AWG
Max. tightening torques IEC/EN 60947-1 0,6 →1 Nm / 5,3 →8,8 Lbf.In
Vibrations according to IEC/EN60068-2-6 10 →150 Hz, A = 0,035 mm


∿ supply voltage frequency 50 / 60 Hz ±10 %
Galvanic isolation of power supply/measurement No
Immunity from micro power cuts 60 ms

Frequency of measured signal 50 →60 Hz ±10 %

Type of contacts No cadmium
Maximum rate 360 operations/hours at full load
Operating categories acc. to IEC/EN 60947-5-1 AC12, AC13, AC14, AC15, DC12, DC13

Insulation coordination (IEC/EN 60664-1) Overvoltage category III  : degree of pollution 3
Rated impulse withstand voltage (IEC/EN 60664-1) 4 kV (1,2 / 50μs)
Dielectric strength (IEC/EN 60664-1) 2 KV AC 50 Hz 1 min

Casing 22,5 mm
Mounting On 35 mm symmetrical DIN rail, IEC/EN 60715
Mounting position All positions
Material : enclosure plastic type VO to UL94 standard Incandescent wire test according to IEC 60695-2-11 & NF EN 60695-2-11
Protection (IEC/EN 60529) Terminal block  : IP20 Casing  : IP30
Operating temperature IEC/EN 60068-2 -20 →+50 °C
Storage temperature IEC/EN 60068-2 -40 →+70 °C
Humidity IEC/EN 60068-2-30 2 x 24 hr cycle 95 % RH max. without condensation 55  °C
Vibrations according to IEC/EN60068-2-6 10 →150  Hz, A = 0.035 mm
Shocks IEC/EN 60068-2-6 5 g

Product standard IEC/EN 50178
Electromagnetic compatibility (EMC) IEC/EN 61000-6-1 IEC/EN 61000-6-2 IEC/EN 61000-6-3 IEC/EN 61000-6-4
Certifications CE, cULus
Conformity with environmental directives RoHS

Technical sketches

Phase failure and sequence

Phase failure and sequence
Legend
1-
MWS : Relay R MWS2 : Relays R1/R2
2-
Response time on appearance of a fault (Tr)

EWS / EWS2

EWS / EWS2

EWS2

EWS2
Legend
1-
100 mA fast-blow fuse
PH RMC2 MWS2

Share
Share
leo. porta. Donec venenatis, adipiscing mattis elementum ut non id, tristique