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Phase Monitoring Relays:

187 Products Found

Farnell offers phase monitoring relays that protect three-phase systems from phase loss, phase reversal and imbalance. These relays are designed to prevent motor damage and ensure stable operation.

Phase monitoring relays measure phase sequence, phase loss and voltage balance in three-phase systems. If any discrepancy is detected, the relay disconnects the load to prevent motor failure.

Key Features:

  • Phase loss and reversal protection for motors and equipment.
  • Adjustable voltage range for versatile use.
  • Compact design for easy installation in control panels.

Applications:

  • Industrial Motors – Ensure proper phase alignment and prevent damage.
  • HVAC Systems – Maintain stable operation in multi-phase compressors.
  • Renewable Energy – Monitor phase balance in solar and wind systems.
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9515020

RoHS

Each
1+
zł428.500
5+
zł363.300
10+
zł356.040
Total:zł428.50
Min: 1 / Mult: 1
-
SPST-NC
-
DIN Rail
-
Screw
-
415VAC
-
3 Phase
-
-
-
-
2780441

RoHS

Each
1+
zł685.670
Total:zł685.67
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
415VAC
-
1 Phase
8VA
15V
500V
EN, IEC
2780438

RoHS

Each
1+
zł747.830
Total:zł747.83
Min: 1 / Mult: 1
Harmony RM22UA Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
1 Phase
1.5W
50mV
5V
EN, IEC
3223352

RoHS

Each
1+
zł994.780
Total:zł994.78
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
400VAC
-
3 Phase
-
360VAC
440VAC
-
3223357

RoHS

Each
1+
zł1,222.620
Total:zł1,222.62
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
280VAC
-
3 Phase
-
180VAC
280VAC
-
3223349

RoHS

Each
1+
zł548.600
Total:zł548.60
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
200VAC
500V
-
3214137

RoHS

Each
1+
zł835.560
Total:zł835.56
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
400VAC
-
3 Phase
18VA
360VAC
440VAC
-
2578931

RoHS

Each
1+
zł569.870
Total:zł569.87
Min: 1 / Mult: 1
K8DT-PM Series
SPDT
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2780437

RoHS

Each
1+
zł468.420
5+
zł459.050
10+
zł449.680
Total:zł468.42
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
240V
-
3 Phase
10VA
200VAC
240VAC
EN, IEC
3215092

RoHS

Each
1+
zł894.640
Total:zł894.64
Min: 1 / Mult: 1
Harmony RM35BA Series
SPDT
5A
DIN Rail
-
Screw
250VAC
528VAC
-
3 Phase
5VA
208VAC
480VAC
-
2507212

RoHS

Each
1+
zł740.440
Total:zł740.44
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
-
-
-
-
2915306

RoHS

Each
1+
zł362.240
5+
zł360.510
10+
zł358.740
Total:zł362.24
Min: 1 / Mult: 1
EMD-BL Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
1.5W
187VAC
519VAC
CE, EAC, UL
3440423

RoHS

Each
1+
zł510.200
Total:zł510.20
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
250VAC
480VAC
-
3 Phase
2.8VA
-
-
-
3223355

RoHS

Each
1+
zł1,139.400
Total:zł1,139.40
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
170VAC
-
3 Phase
-
90VAC
170VAC
-
3215091

RoHS

Each
1+
zł447.320
Total:zł447.32
Min: 1 / Mult: 1
Harmony RM17 Series
SPDT
5A
DIN Rail
-
Screw
250VAC
528VAC
-
3 Phase
22VA
208VAC
480VAC
-
2578929

RoHS

Each
1+
zł321.820
5+
zł315.360
10+
zł308.950
Total:zł321.82
Min: 1 / Mult: 1
K8DT-PH Series
SPDT
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.6VA
200VAC
480VAC
UL
2578932

RoHS

Each
1+
zł574.980
Total:zł574.98
Min: 1 / Mult: 1
K8DT-PM Series
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2612116

RoHS

Each
1+
zł363.980
Total:zł363.98
Min: 1 / Mult: 1
K8AK Series
DPDT
5A
DIN Rail
-
Screw
-
480VAC
-
3 Phase
4.1VA
-
-
UL
2813562
Each
1+
zł631.520
Total:zł631.52
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
-
Screw
240VAC
480VAC
-
3 Phase
6W
190VAC
480VAC
CE, IEC, UL
2507216

RoHS

Each
1+
zł796.270
Total:zł796.27
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
240V
-
3 Phase
-
-
-
-
2507211

RoHS

Each
1+
zł711.240
Total:zł711.24
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
240V
-
3 Phase
-
-
-
-
2507213

RoHS

Each
1+
zł796.270
Total:zł796.27
Min: 1 / Mult: 1
K8AK Series
SPDT
5A
DIN Rail
-
Screw
-
240V
-
3 Phase
-
-
-
-
3111266

RoHS

Each
1+
zł643.550
Total:zł643.55
Min: 1 / Mult: 1
Harmony RM22 Series
DPDT
8A
DIN Rail
-
Screw
250VAC
288VAC
-
3 Phase
10VA
200VAC
240VAC
-
3214133

RoHS

Each
1+
zł856.660
Total:zł856.66
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
500V
500VAC
-
3 Phase
15VA
300VAC
500V
-
3214135

RoHS

Each
1+
zł1,363.060
Total:zł1,363.06
Min: 1 / Mult: 1
EMR6 Series
DPDT
4A
DIN Rail
-
Screw
250VAC
580VAC
-
3 Phase
41VA
350VAC
580VAC
-
76-100 of 187 items
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