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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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ComparePrice ForQuantity
1853734

RoHS

Each
1+
zł447.070
Total:zł447.07
Min: 1 / Mult: 1
-
SPDT-NO
-
DIN Rail
-
Screw
-
230VAC
-
1 Phase
6VA
-
-
-
2578934

RoHS

Each
1+
zł705.840
Total:zł705.84
Min: 1 / Mult: 1
K8DT-PZ Series
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2578933

RoHS

Each
1+
zł712.630
Total:zł712.63
Min: 1 / Mult: 1
K8DT-PZ Series
SPDT
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.7VA
-
-
UL
2578930

RoHS

Each
1+
zł321.820
5+
zł315.360
10+
zł308.950
Total:zł321.82
Min: 1 / Mult: 1
K8DT-PH Series
SPST-NO
-
DIN Rail
-
Screw
-
480VAC
-
3 Phase
2.6VA
-
-
UL
2915307

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
-
Quick Connect
250V
480VAC
-
3 Phase
1.5W
187VAC
519VAC
CE, EAC, UL
3440427

RoHS

Each
1+
zł708.120
Total:zł708.12
Min: 1 / Mult: 1
K8DS Series
SPDT
5A
DIN Rail
-
Screw
250V
480VAC
-
3 Phase
2.8VA
-
-
-
3223353

RoHS

Each
1+
zł1,097.200
Total:zł1,097.20
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
3223348

RoHS

Each
1+
zł1,087.410
Total:zł1,087.41
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Screwless
230VAC
500VAC
-
3 Phase
-
300VAC
500VAC
-
1390498

RoHS

Each
1+
zł835.560
Total:zł835.56
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
DPDT
3A
DIN Rail
-
Screw
400VAC
690VAC
-
3 Phase
2W
160VAC
690VAC
-
3487977

RoHS

Each
1+
zł1,299.760
Total:zł1,299.76
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
2811533

RoHS

Each
1+
zł260.080
5+
zł252.020
10+
zł243.960
20+
zł239.060
Total:zł260.08
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
250V
Screw
250V
415VAC
28V
3 Phase
10VA
-
415VAC
CE
2056345

RoHS

Each
1+
zł311.280
5+
zł286.280
10+
zł263.410
25+
zł242.380
Total:zł311.28
Min: 1 / Mult: 1
Harmony RM35HZ Series
SPDT
5A
DIN Rail
-
Screw
250V
277VAC
-
-
6VA
-
277VAC
-
1655788

RoHS

Each
1+
zł1,187.680
Total:zł1,187.68
Min: 1 / Mult: 1
DPB01 Series
SPDT
8A
DIN Rail
-
Screw
250V
480VAC
-
3 Phase
13VA
323VAC
550VAC
-
2064124

RoHS

Each
1+
zł243.830
2+
zł228.940
5+
zł190.160
Total:zł243.83
Min: 1 / Mult: 1
-
DPDT
5A
DIN Rail
-
Screw
250V
415VAC
-
3 Phase
10VA
-
415VAC
-
3484527

RoHS

Each
1+
zł734.280
Total:zł734.28
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
3484535

RoHS

Each
1+
zł1,215.360
Total:zł1,215.36
Min: 1 / Mult: 1
SIRIUS 3UG4 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4247877

RoHS

Each
1+
zł1,362.760
Total:zł1,362.76
Min: 1 / Mult: 1
CM Series
DPDT
4A
DIN Rail
-
Push In
250V
820VAC
-
3 Phase
59VA
530VAC
820VAC
-
4244638

RoHS

Each
1+
zł323.720
5+
zł317.260
10+
zł310.760
Total:zł323.72
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
-
Push In
400VAC
415VAC
-
3 Phase
1W
208VAC
480VAC
-
4312770

RoHS

Each
1+
zł580.760
Total:zł580.76
Min: 1 / Mult: 1
DPB52 Series
SPDT
5A
DIN Rail
-
-
480VAC
208VAC
-
3 Phase
2W
480VAC
208VAC
-
4825120
Each
1+
zł201.460
Total:zł201.46
Min: 1 / Mult: 1
LPPI Series
-
-
DIN Rail
-
Screw
-
490VAC
-
3 Phase (3 Wire)
4VA
320VAC
490VAC
-
4300429

RoHS

Each
1+
zł609.280
5+
zł516.570
10+
zł506.230
Total:zł609.28
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
-
Screw
250V
-
-
3 Phase
13VA
208VAC
480VAC
-
4713109

RoHS

Each
1+
zł1,254.400
Total:zł1,254.40
Min: 1 / Mult: 1
DPC01 Series
2 x SPDT
5A
DIN Rail
-
Screw
24VDC
690VAC
-
3 Phase
7VA
510VAC
793VAC
-
4713017

RoHS

Each
1+
zł841.930
Total:zł841.93
Min: 1 / Mult: 1
DPA55 Series
SPDT
5A
DIN Rail
-
Screw
250V
480VAC
-
3 Phase
18VA
177VAC
550VAC
-
4312771

RoHS

Each
1+
zł896.030
Total:zł896.03
Min: 1 / Mult: 1
DWA01 Series
-
-
-
-
-
-
-
-
-
-
-
-
-
4825119
Each
1+
zł343.340
Total:zł343.34
Min: 1 / Mult: 1
LXPRC/S/RD Series
SPDT
8A
DIN Rail
-
Screw
250V
460VAC
-
3 Phase
8VA
380VAC
460VAC
-
101-125 of 187 items
of 8 page(s)

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