Crouzet 84873803 Data Sheet
ALL-PURPOSE
L1
L2
L3
3-PHASE MONITORING RELAYS
Crouzet Control 3-Phase Monitoring
Relays enable in-time detection of 3-phase
electrical network faults. They indicate the
need for maintenance and/or corrective
operations before additional costs are
incurred (production shutdown, motor repair
or replacement, etc.).
CROUZET CONTROL OFFERS A SOLUTION FOR THE MOST COMMON NEEDS FOR 3-PHASE MONITORING:
THE BASIC
84873029-MWS
› Phase sequence monitoring
› Phase failure monitoring
› 1 Output relay 8Amps
TYPICAL APPLICATIONS
THE EXTENDED
84873023-MWU
› Phase sequence monitoring
› Phase failure monitoring
› 1 Output relay 5Amps
+ Under-Voltage monitoring
+ 70% Regeneration
+ Selectable timing for alarm
THE ADVANCED
84873026-HWUA
› Phase sequence monitoring
› Phase failure monitoring
› Under-Voltage monitoring
› Selectable timing for alarm
+ 2 Output relays 5Amps
+ Over-Voltage monitoring
+ Asymmetry monitoring
PHASE CONTROL RELAYS
Part Number Timing
Phase Failure
84 873 021
84 873 022
84 873 023
84 873 024
84 873 025
87 873 026
84 873 029
84 873 034
84 873 220
84 873 222
84 903 020
Loss of Phase and Neutral
84 873 221
(A)
H3USN
MWS2
MWG
MWU
MWA
MWUA
HWUA
MWS
EWS2
H3US
M3US
EMWS
RegenerationType
No
70%
70%
70%
70%
No
No
No
No
No
No
No
Sequence / Asymmetry
Yes / No
Yes / No
Yes / No
Yes / 5 to 15%
Yes / 5 to 15%
Yes / 5 to 15%
Yes / No
Yes / No
No / No
No / No
Yes / No
No / No
Overvoltage / Undervoltage
No / No
No / No
No / -20 to -2%
No / No
±2 to ±20%
+2 to +20% / -20 to -2%
No / No
No / No
+2 to +20% / -20 to -2%
+2 to +20% / -20 to -2%
No / No
+2 to +20% / -20 to -2%
0.1 s to 10 s
0.1 s to 10 s
0.1 s to 10 s
0.3 s to 30 s
0.3 s to 30 s
0.3 s to 30 s
0.3 s to 30 s
MECHANICAL DIMENSIONS (B)
17.5 mm 22.5 mm 35 mm
L mm [in]
68 [2.67] 60 [2.36] 60 [2.36]
No
No
No
No
No
Changeover
Output Relay
2 x 5 A
1 x 5 A
1 x 5 A
1 x 5 A
1 x 5 A
2 x 5 A
1 x 8 A
2 x 8 A
2 x 5 A
1 x 5 A
1 x 5 A
2 x 5 A
Housing Width
(mm)
Meas. Range (Self-powered)
50 / 60 Hz
Agency Approvals
On 3-phase
supplies, the
monitoring relays
17.5
17.5
17.5
17.5
17.5
35
17.5
22.5
35
17.5
17.5
35
183 to 484 VAC
183 to 528 VAC
183 to 528 VAC
183 to 528 VAC
183 to 528 VAC
194 to 528 VAC
183 to 528 VAC
194 to 484 VAC
194 to 528 VAC
183 to 528 VAC
183 to 528 VAC
96 to 332 VAC
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed, CSA
CE, C-UL-US Listed
CE, C-UL-US Listed, CSA
check phase
sequence and
phase failure
preventing a
change in direction
of rotation, and
single-phase
operating modes.
They therefore
avoid overheating
faults linked to
phase imbalance.
3 GOOD REASONS FOR
INSTALLING A MONITORING
L
44 [1.73]
3.5 [0.14]
45 [1.77]
67.5 [2.66]
(A) For information on the EMWS mechanical dimensions see product datasheet available at www.crouzet.com.
(B) All dimensions in drawings are in millimeters [inches] and are for reference only.
23.2 [0.91]
5.5 [0.22]
17.5 [0.69]
90 [3.54]
Americas
Tel.: +1 (800) 677 5311
customer.service@us.crouzet.com
22.5 mm17.5 mm 35 mm
22.5 [0.88] 35 [1.38]
90 [3.54]
2.6 [0.1]
90 [3.54]
2.6 [0.1]
Europe, Middle East & Africa
Tel.: +44 (0) 1202 416172
info@crouzet.co.uk
90 [3.54]
2.6 [0.1]
RELAY IN YOUR EQUIPMENT
1
CLOSE-UP PROTECTION FOR TOTAL AVAILABILITY OF EQUIPMENT!
ALL ANOMALIES ARE DETECTED!
2
OPTIMIZE CONTINUITY OF SERVICE
3
RESULT: IMPROVED OPERATION AND PRODUCTIVITY FOR YOUR INSTALLATION! BY USING
MONITORING RELAYS, YOU OPTIMIZE YOUR PRODUCTION MANAGEMENT AND REDUCE INCIDENTS
WHICH COULD ADVERSELY AFFECT YOUR PRODUCTIVITY.
Asia
Tel.: +86 (0) 21 6065 6888
china@cstsensors.com
HO/CZ/3M/EN/UK Rev.032615
Loading...