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Phase Monitoring Relays:

18 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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Relay Mounting
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ComparePrice ForQuantity
4163398

RoHS

Each
1+
€67.520
5+
€64.820
10+
€63.550
20+
€62.320
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
16VA
208VAC
480VAC
-
1344233

RoHS

Each
1+
€69.730
5+
€68.340
10+
€66.940
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
Screw
250VAC
480VAC
3 Phase
1W
208VAC
480VAC
-
2504231

RoHS

Each
1+
€82.620
5+
€81.140
10+
€79.720
Min: 1 / Mult: 1
K8AK
DPDT-NC
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
-
200VAC
480VAC
CSA, UL
3111267

RoHS

Each
1+
€146.000
5+
€143.080
10+
€140.160
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
15VA
380VAC
480VAC
-
3922060

RoHS

Each
1+
€146.500
Min: 1 / Mult: 1
-
DPDT-CO
8A
DIN Rail
Screw
250VAC
576VAC
3 Phase
4VA
208VAC
480VAC
-
4163401

RoHS

Each
1+
€56.230
5+
€48.580
10+
€47.640
20+
€46.720
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
3VA
208VAC
480VAC
-
4163399

RoHS

Each
1+
€51.000
5+
€44.060
10+
€43.200
20+
€42.360
Min: 1 / Mult: 1
MP Voltage Monitoring Relays
SPDT
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
3.5VA
208VAC
480VAC
-
4300430

RoHS

Each
1+
€195.130
Min: 1 / Mult: 1
PPB01 Series
SPDT
8A
Socket
Plug In
250VAC
-
3 Phase
2.5VA
380VAC
480VAC
-
4300429

RoHS

Each
1+
€143.600
5+
€121.750
10+
€119.320
Min: 1 / Mult: 1
DPB51 Series
SPDT
5A
DIN Rail, Panel
Screw
250VAC
-
3 Phase
13VA
208VAC
480VAC
-
3111270

RoHS

Each
1+
€116.000
Min: 1 / Mult: 1
Zelio
DPDT
8A
DIN Rail
Screw
250VAC
480VAC
3 Phase
15VA
380VAC
480VAC
-
2612117

RoHS

Each
1+
€156.010
Min: 1 / Mult: 1
K8AK-PM
SPDT
5A
DIN Rail
Screw
1.25kV
480VAC
3 Phase
4.4VA
220VAC
480VAC
UL
2813563
Each
1+
€118.940
Min: 1 / Mult: 1
460 Series
SPDT
10A
DIN Rail
Screw
240VAC
480VAC
3 Phase
6W
190VAC
480VAC
CE, IEC, UL
3215092

RoHS

Each
1+
€212.000
Min: 1 / Mult: 1
Zelio
SPDT
5A
DIN Rail
Screw
250VAC
528VAC
3 Phase
5VA
208VAC
480VAC
-
3215091

RoHS

Each
1+
€106.000
Min: 1 / Mult: 1
Zelio
SPDT
5A
DIN Rail
Screw
250VAC
528VAC
3 Phase
22VA
208VAC
480VAC
-
2578929

RoHS

Each
1+
€74.000
5+
€72.520
10+
€71.040
Min: 1 / Mult: 1
K8DT-PH
SPDT
-
DIN Rail
Screw
-
480VAC
3 Phase
2.6VA
200VAC
480VAC
UL
2813562
Each
1+
€125.440
Min: 1 / Mult: 1
460
SPDT
10A
DIN Rail
Screw
240VAC
480VAC
3 Phase
6W
190VAC
480VAC
CE, IEC, UL
4244638

RoHS

Each
1+
€76.710
5+
€75.180
10+
€73.640
Min: 1 / Mult: 1
70 Series
SPDT
6A
DIN Rail
Push In
400VAC
415VAC
3 Phase
1W
208VAC
480VAC
-
2987237

RoHS

OMRON INDUSTRIAL AUTOMATION
Each
1+
€70.510
5+
€68.760
10+
€66.980
25+
€63.460
50+
€59.940
Min: 1 / Mult: 1
K8AK-PH Series
DPDT-NC
5A
DIN Rail
Screw
250VAC
480VAC
3 Phase
4.1VA
200VAC
480VAC
-
1-18 of 18 items
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