84873021 Crouzet USA, 84873021 Datasheet - Page 2

• Manufacturer Part Number: 84873021
• Description: PHASE MONITORING RELAY, DPDT, 484VAC
• Manufacturer: Crouzet USA

Specifications of 84873021

• Contact Configuration: DPDT
• Phase Type: 3 Phase
• Power Consumption: 1.8VA
• Supply Voltage Max: 484VAC
• Switching Voltage Max: 250VAC
• Operating Time Range: 100ms To 500ms
• Relay Mounting: DIN Rail
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

03/11/2010
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.
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.
Removable sealable cover for 17.5 mm casing
1
2
Supply
Inputs and measuring circuit
General characteristics
Comments
Description
Dimension Diagram : MWS-MWS2
:
: MWS-MWS2 - Phase failure and sequence
N
: MWS2
Certifications
Conformity with environmental directives
Supply voltage Un
Operating range
Measurement ranges
Weight
* 3-phase mains with earth
o
MWS: Relay R
MWS2: Relays R1/R2
Response time on appearance of a fault (Tr)
Legend
UL, CSA, GL
RoHS, WEEE
3 x 208 →3 x 440 V AC *
183 →484 V AC
183 →484 V AC
85 g
84800000
Code
www.crouzet.com