3-Phase Monitoring Relays - Đại lý phân phối chính hãng Crouzet VietNam

3-Phase Monitoring Relays(Rơle giám sát 3 pha)

Hãng Crouzet. Nhà cung cấp Anh Nghi Sơn - ANS VietNam

Cung cấp các thiết bị của hãng Crouzet

Specifications
AC supply voltage frequency 50 / 60 Hz ± 10 %
Galvanic isolation of power supply/measurement No
Immunity from micro power cuts 60 ms
Inputs and measuring circuit
Frequency of measured signal 50 →60 Hz ± 10 %
Output
Type of contacts No cadmium
Max. breaking current EMWS - MWS2 : 5 A AC/DC
MWS : 8 A AC 250 V AC - 8 A DC 30 V DC
Maximum rate 360 operations/hour at full load
Operating categories acc. to IEC/EN 60947-5-1 AC12, AC13, AC14, AC15, DC12, DC13
Insulation
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 / 50 μs)
Dielectric strength (IEC/EN 60664-1) 2 kV AC 50 Hz 1 min.
General characteristics
Display relay Yellow LED
Casing 17,5 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/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
Standards
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 MWS, MWS2 : CE, UL, CSA
EMWS : CE, UL (cULus)
Conformity with environmental directives RoHS
Supply
Supply voltage Un 3 x 208 →3 x480 V AC*
Voltage supply tolerance -12 % / +10 %
Operating range 183 →528 V AC
Power consumption at Un 1,8 VA
Inputs and measuring circuit
Operating principle
MWS-MWS2 : 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 VAC), 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.
Measurement ranges 183 →528 V AC
Guaranteed phase failure detection threshold < 30 VAC
Voltage threshold hysteresis -
Display precision -
Maximum regeneration (phase failure) < 30 VAC
Timing
Alarm on delay time max. 130 ms
Delay on pick-up ≤ 650 ms
Output
Type of output 1 single pole changeover relay
Maximum breaking voltage 250 VAC / 8 AAC - 250 VDC / 0,3 A
Max. breaking current 8 AAC 250 VAC - 8 ADC 30 VDC
Min. breaking current 10 mA / 5 VDC
Electrical life (number of operations) 1 x 105
Breaking capacity (V resistive) 2000 VA/80W
Mechanical life (operations) 10 x 106
Insulation
Nominal insulation voltage IEC/EN 60664-1 400 V
Insulation resistance (IEC/EN 60664-1) > 500 MΩ / 500 VDC
General characteristics
"Fault" indication -
Weight 80 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